Polishing device for flute processing
By designing a retractable grinding frame and a grinding device that drives the flute to rotate via an internal control toothed ring, the problem of bamboo ring obstruction was solved, enabling synchronous or step-by-step grinding of the inner and outer walls of bamboo flutes, improving grinding efficiency and precision, and meeting the high-quality requirements of intelligent manufacturing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-11
- Publication Date
- 2026-04-03
AI Technical Summary
When using traditional sanding devices to sand the outer wall of bamboo flutes, the bamboo ring structure creates a mechanical obstruction to the sanding components, preventing them from moving smoothly and affecting the continuity and uniformity of the sanding process. Furthermore, it is impossible to simultaneously and efficiently sand both the inner and outer walls.
A polishing device comprising an outer control section, an inner polishing section, and an outer polishing section is designed. The outer control section drives the flute to rotate through a retractable polishing frame and an inner polishing block in conjunction with an inner control gear ring. The inner polishing block can extend into the inner wall of the flute for polishing. The outer polishing frame moves along the outer wall of the flute. Combined with a flute motor and an air pump, synchronous or step-by-step polishing of the inner and outer walls is achieved, avoiding obstruction by the bamboo ring. Stable movement is ensured by spring buffering and positioning with constraint pins.
It enables simultaneous or step-by-step polishing of the inner and outer walls of the flute, avoiding obstruction by bamboo rings, ensuring the continuity and uniformity of polishing, improving polishing efficiency and precision, and eliminating the need to change equipment for polishing the inner and outer walls, thus meeting the high-quality requirements of intelligent manufacturing.
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Figure CN121776971A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of polishing equipment technology, specifically a polishing device for flute processing. Background Technology
[0002] As a primary high-pitched melodic instrument in modern orchestral and chamber music, the flute is a cylindrical tube with several tone holes. Its tone is dynamic, melodious, and captivating. The playing effect is closely related to the precision of the flute's manufacturing process, especially the smoothness of the tube surface, the regularity of the tone hole edges, and the flatness of the tube opening, which directly affect the flute's intonation, timbre, and playing feel. With the continuous development of the musical instrument industry and the ongoing upgrading of the intelligent manufacturing equipment industry, the market's requirements for the manufacturing quality of flutes are increasing. Whether it is a bamboo flute or a popular flute made of brass, cupronickel, or nickel-silver alloy, or a professional flute made of silver alloy, gold alloy, or even platinum, all flutes must undergo fine polishing after forming to remove burrs, scratches, and machining marks from the inner and outer surfaces of the tube. At the same time, the dimensional accuracy of key parts such as tone holes and tube openings must be ensured to meet the needs of subsequent assembly and use.
[0003] Currently, traditional polishing devices have a limited function when polishing flutes. They can typically only polish the outer wall of the flute. Polishing the inner wall requires disassembling and replacing the corresponding polishing equipment or components, which significantly reduces the efficiency of flute polishing. In addition, when polishing the outer wall of bamboo flutes, the naturally formed bamboo ring structure, whose diameter is larger than the diameter of the flute body, creates mechanical obstruction as the polishing components move along the outer wall of the flute. This prevents the polishing components from moving smoothly and affects the continuity and uniformity of the polishing of the outer wall of the flute. Summary of the Invention
[0004] The purpose of this invention is to provide a polishing device for flute processing, in order to solve the problem mentioned in the background art that when polishing the outer wall of a bamboo flute, the bamboo ring structure forms a mechanical obstruction to the polishing component as it moves along the outer wall of the flute to perform the polishing operation, causing the polishing component to be unable to move smoothly.
[0005] To achieve the above objectives, the present invention provides the following technical solution: It includes an external control unit, an external mounting unit, and an internal grinding unit. The internal grinding unit includes a side connecting block, an internal extension groove, an auxiliary support bracket slidably connected to the internal extension groove, an internal control moving rod slidably connected to the internal support bracket, a mating end threadedly connected to the end of the internal control moving rod, and an internal grinding block fixedly attached to the mating end. The mounting unit has a fixed mounting part, and an external grinding unit includes a movable frame. A rear connecting frame is fixedly attached to the rear side of the movable frame, a displacement groove is opened inside the rear connecting frame, a shrinking block slidably connected to the displacement groove, and a grinding frame is fixedly attached to the shrinking block.
[0006] Preferably, the external control unit includes a fixed frame, an internal grinding cylinder is fixedly connected inside the fixed frame, the internal grinding cylinder is electrically connected to the external control component, a drive frame is provided on the outside of the fixed frame, the drive frame is fixedly connected to the internal grinding cylinder, and two support frames are fixedly connected to the outer wall of the fixed frame.
[0007] Preferably, the mounting part includes a fixed bracket, on which two annular structures are fixedly connected. Each of the two annular structures of the fixed bracket has a mating inner ring fixedly connected to its inner side. Both mating inner rings are fixedly connected to the corresponding support frame. An inner control gear ring is rotatably connected inside one annular structure of the fixed bracket. A whistle motor is fixedly connected to the outer wall of one annular structure of the fixed bracket. The whistle motor is electrically connected to an external control component.
[0008] Preferably, a drive gear is rotatably connected inside a circular structure of the fixed bracket. The drive gear is fixedly connected to the rotary motor. The drive gear is connected to the inner control gear ring by a locking tooth. Multiple circumferentially distributed docking blocks are fixedly attached to the inner wall of the inner control gear ring.
[0009] Preferably, the side connecting block is fixedly connected to another annular structure of the fixed bracket, the auxiliary support bracket has an internal hole in the middle position, a spring is fixedly connected to the auxiliary support bracket, the inner control moving rod is fixedly connected to the driving frame, the end of the inner control moving rod has a threaded groove, the auxiliary support bracket and the mating end both have pin holes, a friction brush is fixedly connected to the outer wall of the inner grinding block, and a constraint pin is inserted into the inside of the pin hole.
[0010] Preferably, the fixed flute part includes a docking clamp seat, which is fixedly inserted into the inside of the inner control tooth ring. The docking clamp seat is provided with an adjustment component inside. A flute clamping frame is slidably connected to the docking clamp seat, and the flute clamping frame is fixedly connected to the adjustment component of the docking clamp seat.
[0011] Preferably, the outer wall of the docking clamp is provided with a plurality of circumferentially distributed synchronization grooves, the synchronization grooves are fixedly inserted with the corresponding docking blocks, and the docking clamp is rotatably connected to a chip blowing head, which can be connected to an external air pump.
[0012] Preferably, the movable frame is slidably connected to the fixed bracket, and two opposing outer grinding frames are slidably connected inside the movable frame. A spring is provided between the two outer grinding frames and the movable frame, and a friction layer is provided on the two outer grinding frames. A hand control handle is fixedly connected to the bottom of the movable frame.
[0013] Preferably, a rear control frame is rotatably connected to the rear support frame, the rear control frame is provided with a threaded rod, the shrink block is threadedly connected to the rear control frame, and the grinding frame can extend out from the rear support frame.
[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. An adjustable grinding frame is installed in the outer grinding section. Through the cooperation of the rear control frame, shrink block and displacement groove, the extension length of the grinding frame can be flexibly adjusted. When grinding bamboo flutes, when the outer grinding frame moves to the position of the bamboo ring, the grinding frame can be extended by rotating the rear control frame to perform targeted grinding on the surface of the bamboo ring. At the same time, it avoids the bamboo ring from mechanically obstructing the movement of the moving frame and the outer grinding frame, ensuring that the grinding components move smoothly along the outer wall of the flute, realizing uniform grinding of the flute body and the bamboo ring, ensuring the continuity and uniformity of grinding the outer wall of the bamboo flute, and effectively avoiding the problem in the intelligent manufacturing equipment industry where the bamboo ring forms a mechanical obstruction to the grinding components when the grinding components move along the outer wall of the flute for grinding operations, which prevents the grinding components from moving smoothly and thus affects the continuity and uniformity of grinding the outer wall of the flute.
[0015] 2. The flute motor drives the internal control gear ring to rotate at a uniform speed, causing the flute to rotate synchronously and smoothly. This, combined with the horizontal movement of the inner grinding block and the contact grinding of the outer grinding frame, ensures uniform grinding of both the inner and outer walls of the flute, effectively removing burrs, scratches, and machining marks, and improving surface smoothness. The auxiliary support bracket of the inner grinding section is positioned by spring buffers and constraint pins, ensuring smooth and unbiased movement of the internal control moving rod and inner grinding block, guaranteeing the grinding accuracy of the inner wall. The blower head connects to an external air pump to promptly remove grinding debris. Simultaneously, the inner grinding block, driven by the inner grinding moving cylinder and the moving frame, extends into the inner wall of the flute, completing fine grinding of the inner wall in conjunction with the flute's uniform rotation. The outer grinding frame, under spring force, contacts the outer wall of the flute, and grinding of the outer wall is completed by pushing the moving frame. Grinding of the inner and outer walls can be performed simultaneously or in stages without changing any grinding equipment or components. This effectively avoids the problem of traditional grinding devices being limited in function, typically only able to grind the outer wall of the flute. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention; Figure 2 This is a bottom view of the overall assembly structure of the present invention; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is an exploded bottom view schematic diagram of the structure of the present invention; Figure 5 This is a partial cross-sectional view of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of part A is shown. Figure 7 For the present invention Figure 5 A schematic diagram of the enlarged structure of section B is shown. Figure 8 This is a schematic diagram of the assembly structure of the external control unit of the present invention; Figure 9 This is a schematic diagram of the mounting structure of the present invention; Figure 10 This is a schematic diagram of the internal grinding part assembly structure of the present invention; Figure 11 This is a schematic diagram of the assembly structure of the whistle fixing part of the present invention; Figure 12 This is a schematic diagram of the assembly structure of the external grinding part of the present invention.
[0017] In the attached diagram, the components represented by each number are as follows: 1. External control unit; 101. Fixed bracket; 102. Internal grinding cylinder; 103. Drive frame; 104. Support frame; 2. Mounting unit; 201. Fixed bracket; 202. Connecting inner ring; 203. Internal control gear ring; 204. Rotary motor; 205. Drive gear; 206. Connecting block; 3. Internal grinding unit; 301. Side connecting block; 302. Internal extension slot; 303. Auxiliary support bracket; 304. Internal control moving rod; 3 05. Connecting end; 306. Pin hole; 307. Inner grinding block; 308. Constraint pin; 4. Flute fixing part; 401. Connecting clamp; 402. Flute clamping frame; 403. Synchronization groove; 404. Blowing head; 5. Outer grinding part; 501. Moving frame; 502. Outer grinding frame; 503. Hand control handle; 504. Rear connection frame; 505. Displacement groove; 506. Rear control frame; 507. Shrink block; 508. Punching frame. 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 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.
[0019] This invention provides a technical solution: such as Figure 1 - Figure 12 The polishing device for flute processing shown includes an outer control unit 1, an installation unit 2 on the outside of the outer control unit 1, an inner grinding unit 3 inside the installation unit 2, an inner grinding unit 3 including a side connecting block 301, an inner extension groove 302 inside the side connecting block 301, an auxiliary support bracket 303 slidably connected inside the inner extension groove 302, an inner control moving rod 304 slidably connected inside the auxiliary support bracket 303, a mating end 305 threadedly connected to the end of the inner control moving rod 304, an inner grinding block 307 fixedly connected to the mating end 305, a flute fixing unit 4 inside the installation unit 2, an outer grinding unit 5 inside the installation unit 2, an outer grinding unit 5 including a moving frame 501, a rear connecting frame 504 fixedly connected to the rear side of the moving frame 501, a displacement groove 505 inside the rear connecting frame 504, a shrinking block 507 slidably connected inside the displacement groove 505, and a grinding frame 508 fixedly connected to the shrinking block 507.
[0020] Preferably, the external control unit 1 includes a mounting frame 101, an internal grinding cylinder 102 is fixedly connected inside the mounting frame 101, the internal grinding cylinder 102 is electrically connected to the external control components, a drive frame 103 is provided on the outside of the mounting frame 101, the drive frame 103 is fixedly connected to the internal grinding cylinder 102, and two support frames 104 are fixedly connected to the outer wall of the mounting frame 101.
[0021] Preferably, the mounting part 2 includes a fixed bracket 201, on which two annular structures are fixedly connected. Each of the two annular structures of the fixed bracket 201 has a mating inner ring 202 fixedly connected to its inner side. Both mating inner rings 202 are fixedly connected to the corresponding support frame 104. An inner control gear ring 203 is rotatably connected inside one annular structure of the fixed bracket 201. A whistle motor 204 is fixedly connected to the outer wall of one annular structure of the fixed bracket 201. The whistle motor 204 is electrically connected to an external control component.
[0022] Preferably, a drive gear 205 is rotatably connected inside a ring structure of the fixed bracket 201. The drive gear 205 is fixedly connected to the rotary motor 204. The drive gear 205 is connected to the inner control gear ring 203 through a toothed connection. Multiple circumferentially distributed docking blocks 206 are fixedly attached to the inner wall of the inner control gear ring 203.
[0023] Preferably, the side connecting block 301 is fixedly connected to another annular structure of the fixed bracket 201. The auxiliary support bracket 303 has an internal hole in the middle position. A spring is fixedly connected to the auxiliary support bracket 303. The inner control moving rod 304 is fixedly connected to the driving frame 103. A threaded groove is opened at the end position of the inner control moving rod 304. A pin hole 306 is opened on both the auxiliary support bracket 303 and the mating end 305. A friction brush is fixedly connected to the outer wall of the inner grinding block 307. A constraint pin 308 is inserted into the inside of the pin hole 306.
[0024] Preferably, the fixed flute part 4 includes a docking clamp 401, which is fixedly inserted into the inside of the inner control tooth ring 203. An adjustment component is provided inside the docking clamp 401, and a flute clamping frame 402 is slidably connected to the docking clamp 401. The flute clamping frame 402 is fixedly connected to the adjustment component of the docking clamp 401.
[0025] Preferably, the outer wall of the docking clamp 401 is provided with a plurality of circumferentially distributed synchronous grooves 403, the synchronous grooves 403 and the corresponding docking blocks 206 are fixedly inserted, and the docking clamp 401 is rotatably connected to a chip blowing head 404, which can be connected to an external air pump.
[0026] Preferably, the movable frame 501 is slidably connected to the fixed bracket 201. The movable frame 501 has two opposing outer grinding frames 502 slidably connected inside. Both outer grinding frames 502 are provided with springs between them and the movable frame 501. Both outer grinding frames 502 are provided with friction layers. A hand control handle 503 is fixedly connected to the bottom of the movable frame 501.
[0027] Preferably, a rear control frame 506 is rotatably connected to the rear support frame 504, and a threaded rod is provided on the rear control frame 506. A shrink block 507 is threadedly connected to the rear control frame 506, and a grinding frame 508 can extend out from the rear support frame 504.
[0028] Working principle: During use, the external air pump is reliably connected to the blow head 404. Then, one end of the flute to be ground is inserted into the docking clamp 401. By adjusting the adjustment component inside the docking clamp 401, the flute clamping frame 402 is driven to slide, so that the flute clamping frame 402 tightly clamps the flute, ensuring that the flute is fixed firmly and without looseness. At this time, the flute is stuck between the two external grinding frames 502, and the two external grinding frames 502 are in contact with the outer wall of the flute under the action of the spring. At the same time, the position of the auxiliary support bracket 303 is adjusted so that the auxiliary support bracket 303 is inserted into the other end of the flute under the action of the spring. At this time, the two pin holes 306 are aligned, and the constraint pin 308 is inserted inside. During the internal grinding process, the constraint pin 308 is pulled out. Then, the internal grinding cylinder 102 is started by the external control component. The internal grinding cylinder 102 drives the drive frame 103 to move, and the drive frame 103 drives the internal control rod 304 to move synchronously, so that the internal grinding block 307 extends into the inner wall of the flute. During polishing, the flute motor 204 and external air pump are started. The flute motor 204 drives the gear 205 to rotate, which in turn drives the gear 205 to mesh with the internal control gear ring 203. The internal control gear ring 203 drives the docking clamp 401 and the flute to rotate synchronously and uniformly. At the same time, the internal grinding cylinder 102 is started again, driving the internal control moving rod 304 to move slowly, so that the internal grinding block 307 moves along the inner wall of the flute, completing the polishing of the inner wall of the flute. The operator holds the hand control handle 503 and pushes the moving rod to complete the polishing of the inner wall of the flute. The movable frame 501 slides along the fixed bracket 201, causing the outer grinding frame 502 to move along the outer wall of the flute, completing the grinding of the outer wall of the flute. The bamboo ring position is specifically ground by the punching and grinding frame 508. During the grinding process, the blower head 404 blows in high-pressure gas to remove grinding debris in time. If it is a bamboo flute, the rear control frame 506 is rotated to adjust the extension length of the punching and grinding frame 508 to match the grinding requirements of the bamboo ring, so that the bamboo ring position is uniformly ground during the grinding process.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover 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.
[0030] 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 polishing device for flute processing, comprising an external control unit (1), characterized in that: The external control unit (1) is provided with an installation part (2) on its exterior, and an internal grinding part (3) is provided inside the installation part (2). The internal grinding part (3) includes a side connecting block (301), and an internal extension slot (302) is provided inside the side connecting block (301). An auxiliary support bracket (303) is slidably connected inside the internal extension slot (302), and an internal control moving rod (304) is slidably connected inside the auxiliary support bracket (303). A mating end (305) is threadedly connected to the end of the internal control moving rod (304). An inner grinding block (307) is fixedly connected to the end (305). The mounting part (2) is provided with a fixed part (4) inside. The mounting part (2) is provided with an outer grinding part (5) inside. The outer grinding part (5) includes a moving frame (501). A rear connecting frame (504) is fixedly connected to the rear side of the moving frame (501). A displacement groove (505) is opened inside the rear connecting frame (504). A shrinking block (507) is slidably connected inside the displacement groove (505). A punching frame (508) is fixedly connected to the shrinking block (507).
2. The polishing device for flute processing according to claim 1, characterized in that: The external control unit (1) includes a mounting frame (101), an internal grinding cylinder (102) is fixedly connected inside the mounting frame (101), the internal grinding cylinder (102) is electrically connected to an external control component, a drive frame (103) is provided outside the mounting frame (101), the drive frame (103) is fixedly connected to the internal grinding cylinder (102), and two support frames (104) are fixedly connected to the outer wall of the mounting frame (101).
3. A polishing device for flute processing according to claim 2, characterized in that: The mounting part (2) includes a fixed bracket (201), on which two annular structures are fixedly connected. The inner sides of the two annular structures of the fixed bracket (201) are fixedly connected to a mating inner ring (202). The two mating inner rings (202) are fixedly connected to the corresponding support frame (104). An inner control gear ring (203) is rotatably connected inside one annular structure of the fixed bracket (201). A whistle motor (204) is fixedly connected to the outer wall of one annular structure of the fixed bracket (201). The whistle motor (204) is electrically connected to an external control component.
4. A polishing device for flute processing according to claim 3, characterized in that: The fixed bracket (201) has a drive gear (205) rotatably connected inside a ring structure. The drive gear (205) is fixedly connected to the rotary motor (204). The drive gear (205) is connected to the inner control gear ring (203) by a toothed connection. The inner wall of the inner control gear ring (203) has a plurality of circumferentially distributed docking blocks (206).
5. A polishing device for flute processing according to claim 3, characterized in that: The side block (301) is fixedly connected to another annular structure of the fixed bracket (201). The auxiliary support bracket (303) has an internal hole in the middle position. A spring is fixedly connected to the auxiliary support bracket (303). The inner control rod (304) is fixedly connected to the drive frame (103). A threaded groove is opened at the end of the inner control rod (304). A pin hole (306) is opened on both the auxiliary support bracket (303) and the mating end (305). A friction brush is fixedly connected to the outer wall of the inner grinding block (307). A constraint pin (308) is inserted inside the pin hole (306).
6. A polishing device for flute processing according to claim 4, characterized in that: The fixed flute part (4) includes a docking clamp (401), which is fixedly inserted into the inside of the inner control tooth ring (203). An adjustment component is provided inside the docking clamp (401), and a flute clamping frame (402) is slidably connected to the docking clamp (401). The flute clamping frame (402) is fixedly connected to the adjustment component of the docking clamp (401).
7. A polishing device for flute processing according to claim 6, characterized in that: The outer wall of the docking clamp (401) is provided with a plurality of circumferentially distributed synchronous grooves (403). The synchronous grooves (403) are fixedly inserted with the corresponding docking blocks (206). The docking clamp (401) is rotatably connected to a chip blower (404), which can be connected to an external air pump.
8. A polishing device for flute processing according to claim 3, characterized in that: The movable frame (501) is slidably connected to the fixed bracket (201). Two opposing outer grinding frames (502) are slidably connected inside the movable frame (501). Springs are provided between the two outer grinding frames (502) and the movable frame (501). Friction layers are provided on the two outer grinding frames (502). A hand control handle (503) is fixedly connected to the bottom of the movable frame (501).
9. A polishing device for flute processing according to claim 1, characterized in that: A rear control frame (506) is rotatably connected to the rear support frame (504). A threaded rod is provided on the rear control frame (506). The shrink block (507) is threadedly connected to the rear control frame (506). The grinding frame (508) can extend out from the rear support frame (504).