Violin plate sound hole efficient cutting device
By using flexible clamping components and a transport assembly, the problems of low automation and unstable clamping in traditional violin sound hole cutting devices have been solved, achieving efficient and safe sound hole cutting processing and improving processing quality and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIXING YINUO MUSICAL INSTRUMENTS CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional violin soundhole cutting devices have low levels of automation, pose safety hazards, and their clamping structure cannot be flexibly adjusted, resulting in easy damage to the soundboard surface and low processing precision.
The system employs a flexible clamping assembly and a transport assembly. The flexible clamping assembly uses a silicone clamping seat and an air pump to achieve flexible clamping, while the transport assembly uses a motor-driven lead screw and a telescopic cylinder to achieve precise transport. Combined with an elastic rubber pad to protect the soundboard, the system ensures clamping stability and processing safety.
It improves the automation level of violin soundhole cutting, enhances the stability and safety of clamping, avoids indentations and damage to the violin board surface, and improves processing quality and precision.
Smart Images

Figure CN224239874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of violin technology, and in particular to a high-efficiency device for cutting sound holes in a violin soundboard. Background Technology
[0002] The soundholes on the violin's soundboard are two symmetrical f-shaped openings on the front of the instrument. They not only reduce the weight of the instrument and enhance the vibration of the soundboard, but are also a key structure that determines the tone characteristics of the violin, similar to the breather of the acoustic resonance chamber.
[0003] However, the loading and unloading process of traditional soundboard sound hole cutting devices relies on manual operation or semi-automated machinery, resulting in a low level of automation. This not only poses safety hazards but also leads to excessively long loading and unloading times, reducing production efficiency. Furthermore, the clamping structure of traditional devices is mostly rigid and fixed, which cannot be flexibly adjusted according to the shape of the soundboard surface. During the cutting process, the soundboard surface is prone to indentations or damage due to uneven local stress, affecting the quality of the soundboard and processing accuracy. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency device for cutting sound holes in a violin soundboard, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a cutting table, on which a flexible clamping assembly is provided, a feeding conveyor is provided on one side of the cutting table, a discharging conveyor is provided on the side of the cutting table away from the feeding conveyor, a support frame is provided on the outer side of the cutting table, and a pair of handling components are symmetrically arranged on the top of the support frame.
[0006] As a preferred embodiment of the present invention, the flexible clamping assembly includes several mounting plates 1 disposed on the cutting table, each mounting plate 1 having a telescopic cylinder 1 disposed on one side, each telescopic cylinder 1 having a drive block 1 disposed on the top of its telescopic rod, each drive block 1 having a guide post disposed on one side, and a guide sleeve disposed on the mounting plate 1 at the position corresponding to the guide post.
[0007] As a preferred embodiment of this utility model, each of the drive blocks is provided with a pair of silicone clamping seats on the side away from the telescopic cylinder, and each of the two silicone clamping seats is provided with an air nozzle on the bottom side. A pair of air pumps are provided on the side of the drive block away from the silicone clamping seats, and the air pumps on the same side are connected to the air nozzles. Anti-slip textures are provided on several of the silicone clamping seats.
[0008] As a preferred embodiment of this utility model, the cutting table is hollow inside, an elastic rubber pad is provided in the middle of the cutting table, several round holes are provided on both sides of the cutting table, and a dust guide box is provided at the bottom of the cutting table at an angle.
[0009] As a preferred embodiment of this utility model, the conveying assembly includes a pair of support seats disposed on the top of the support frame, a lead screw disposed between the two support seats, a motor disposed on one side of the top of the support frame, one end of the lead screw being connected to the transmission end of the motor, a second drive block being spirally sleeved on the outer side of the lead screw, a guide rail being disposed on the support frame on one side of the lead screw, and the second drive block being slidably disposed on the guide rail.
[0010] As a preferred embodiment of this utility model, the bottom of the drive block 2 is provided with a pair of mounting columns, the bottom of the two mounting columns is provided with a mounting plate 2, one side of the bottom of the mounting plate 2 is provided with a telescopic cylinder 2, the bottom of the telescopic rod of the telescopic cylinder 2 is provided with a mounting frame, a pair of telescopic cylinders 3 are symmetrically arranged on both sides of the mounting frame, the telescopic rod of the telescopic cylinder 3 passes through the mounting frame, the top of the telescopic rod of the two telescopic cylinders 3 is provided with a clamping seat 2, and one side of each clamping seat 2 is provided with a sponge pad.
[0011] As a preferred embodiment of this utility model, a hydraulic cylinder is provided at the top of the support frame corresponding to the position of the cutting table, and a CNC engraving machine is provided at the bottom of the telescopic rod of the hydraulic cylinder.
[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0013] This invention features a flexible clamping assembly. A telescopic cylinder drives a drive block to move via a telescopic rod. Combined with the cooperation of guide posts and guide sleeves, the accuracy of the drive block's movement is ensured. The drive block moves the silicone clamping seat closer to or away from the soundboard, achieving stable clamping or releasing. Furthermore, the combination of the silicone clamping seat, air pump, and air nozzle possesses unique flexibility, adapting to the shape of the soundboard surface and perfectly conforming to it, enhancing clamping stability. Simultaneously, the anti-slip texture on the silicone clamping seat effectively increases friction with the soundboard, preventing slippage during processing. In addition, several silicone clamping seats work in conjunction with elastic rubber pads to prevent localized indentations on the soundboard surface during CNC engraving of sound holes, providing comprehensive protection for the soundboard and ensuring processing quality and the integrity of the soundboard.
[0014] This invention features a conveying assembly. A motor drives a lead screw to rotate, converting the screw's rotational motion into linear motion of the drive block two. With the guidance of a guide rail, the stability of the drive block two and its bottom-mounted components during horizontal movement is ensured. Furthermore, the telescopic cylinder two, through the extension and retraction of its telescopic rod, can flexibly control the vertical lifting and lowering of the mounting frame and its bottom components, facilitating height control of the clamping seat two for precise clamping of the soundboard. Simultaneously, it can raise the soundboard to a safe height during transport, preventing collisions with other components. Additionally, the extension and retraction of the telescopic cylinder three's telescopic rod can drive the two clamping seats two to move closer or further apart. Combined with a sponge pad, this not only stably clamps the soundboard but also prevents damage from the clamping seats two, ensuring the safety and stability of the soundboard during transport. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the flexible clamping component structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the handling component structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the drive block two in the conveying assembly of this utility model;
[0019] Figure 5 This is a schematic diagram of the clamping seat 2 structure in the handling assembly of this utility model.
[0020] Reference numerals: Cutting table 1, elastic rubber pad 11, round hole 12, dust guide box 13, feeding conveyor 2, unloading conveyor 3, flexible clamping assembly 4, mounting plate 1 41, telescopic cylinder 1 42, drive block 1 43, guide sleeve 44, guide post 45, silicone clamping seat 1 46, air nozzle 47, air pump 48, anti-slip texture 49, support frame 5, handling assembly 6, support seat 61, lead screw 62, motor 63, drive block 2 64, guide rail 65, mounting post 66, mounting plate 2 67, telescopic cylinder 2 68, mounting frame 69, telescopic cylinder 3 610, clamping seat 2 611, sponge pad 612, hydraulic cylinder 7, CNC engraving machine 8. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0022] like Figures 1-5 As shown, the present invention proposes a high-efficiency cutting device for violin sound holes, which includes a cutting table 1, a flexible clamping component 4 on the cutting table 1, a feeding conveyor 2 on one side of the cutting table 1, a discharging conveyor 3 on the side of the cutting table 1 away from the feeding conveyor 2, a support frame 5 on the outside of the cutting table 1, and a pair of conveying components 6 symmetrically arranged on the top of the support frame 5.
[0023] The flexible clamping assembly 4 includes several mounting plates 41 mounted on the cutting table 1. The mounting plates 41 provide a mounting base for other components in the flexible clamping assembly 4. Each mounting plate 41 has a telescopic cylinder 42 on one side. The telescopic cylinder 42 drives the drive block 43 to move closer to or away from the piano board through the telescopic movement of the telescopic rod. Each telescopic cylinder 42 has a drive block 43 at the top of the telescopic rod. The drive block 43 provides a mounting base for the silicone clamping seat 46. A guide post 45 is provided on one side of the drive block 43. A guide sleeve 44 is provided on the mounting plate 41 at the position corresponding to the guide post 45. The guide post 45 slides in the guide sleeve 44 to ensure the accuracy of the drive block 43 during movement and to prevent it from deviating.
[0024] Each drive block 43 has a pair of silicone clamping seats 46 on the side away from the telescopic cylinder 42. The silicone clamping seats 46 conform to the shape of the soundboard surface to achieve stable clamping. Each silicone clamping seat 46 has an air nozzle 47 on one side of its bottom. The drive block 43 has a pair of air pumps 48 on the side away from the silicone clamping seats 46. The air pumps 48 on the same side are connected to the air nozzles 47. The air pumps 48 inflate the silicone clamping seats 46 through the air nozzles 47, so that the silicone clamping seats 46 can conform to the contour of the soundboard surface, enhancing the stability and adaptability of the clamping. Several silicone clamping seats 46 are provided with anti-slip textures 49, which can increase the friction between the silicone clamping seats 46 and the soundboard and prevent the soundboard from sliding during processing.
[0025] The cutting table 1 is hollow inside, and an elastic rubber pad 11 is set in the middle of the upper part of the cutting table 1. When the CNC engraving machine 8 cuts the sound holes of the piano board, the elastic rubber pad 11 cooperates with the silicone clamping seat 46 to avoid local pressure marks on the surface of the piano board and play a role in protecting the piano board. Several round holes 12 are opened on both sides of the cutting table 1. A dust guide box 13 is set at the bottom of the cutting table 1 at an angle. The round holes 12 allow the waste generated during the processing to pass through and fall into the dust guide box 13, thereby being discharged from the cutting table 1.
[0026] The conveying assembly 6 includes a pair of support seats 61 mounted on the top of the support frame 5. The support seats 61 provide mounting support for the lead screw 62, enabling the lead screw 62 to rotate stably. The lead screw 62 is positioned between the two support seats 61. A motor 63 is mounted on one side of the top of the support frame 5. One end of the lead screw 62 is connected to the transmission end of the motor 63. The motor 63 provides rotational power to the lead screw 62, converting the rotational motion of the lead screw 62 into the linear motion of the second drive block 64. The second drive block 64 is spirally sleeved on the outer side of the lead screw 62. A guide rail 65 is mounted on the support frame 5 on one side of the lead screw 62. The second drive block 64 is slidably mounted on the guide rail 65. The guide rail 65 guides the movement of the second drive block 64, ensuring the smoothness of the movement of the second drive block 64.
[0027] A pair of mounting posts 66 are provided at the bottom of the drive block 2 64. A mounting plate 2 67 is provided at the bottom of the two mounting posts 66. The mounting plate 2 67 provides the mounting base for the telescopic cylinder 2 68. The telescopic cylinder 2 68 is provided on one side of the bottom of the mounting plate 2 67. A mounting frame 69 is provided at the bottom of the telescopic rod of the telescopic cylinder 2 68. The telescopic cylinder 2 68 drives the mounting frame 69 and the components installed at its bottom to move vertically through the telescopic movement of the telescopic rod. A pair of telescopic cylinders 3 610 are symmetrically arranged on both sides of the mounting frame 69. The telescopic rod of the telescopic cylinders 3 610 passes through the mounting frame 69. The telescopic cylinders 3 610 drive the clamping seats 2 611 on both sides to move closer or further apart through the telescopic movement of the telescopic rod, so as to clamp and release the piano board. A clamping seat 2 611 is provided at the top of the telescopic rod of the two telescopic cylinders 3 610. A sponge pad 612 is provided on one side of each clamping seat 2 611. The clamping seat 2 611 stably clamps the piano board, and the sponge pad 612 can prevent the clamping seat 2 611 from damaging the piano board.
[0028] A hydraulic cylinder 7 is installed at the top of the support frame 5 corresponding to the position of the cutting table 1. The hydraulic cylinder 7 drives the CNC engraving machine 8 to move vertically through the extension and retraction of the telescopic rod. When it descends, the CNC engraving machine 8 can perform sound hole cutting on the piano board. When it rises to a safe height, it can avoid collision with the transport component 6. The CNC engraving machine 8 is installed at the bottom of the telescopic rod of the hydraulic cylinder 7. The CNC engraving machine 8 performs sound hole cutting on the piano board placed on the cutting table 1 to achieve high-precision processing.
[0029] In operation, the operator first starts the entire equipment. The feeding conveyor 2 begins to transport the piano board. The motor 63 in the first handling component 6 drives the lead screw 62 to rotate, converting the rotational motion of the lead screw 62 into the linear motion of the drive block 64. This causes the drive block 64 and other components mounted at its bottom to move along the guide rail 65 to directly above the feeding conveyor 2. Then, the telescopic rod of the telescopic cylinder 68 extends, driving the mounting frame 69 and the components mounted at its bottom to descend closer to the piano board. Finally, the telescopic rod of the telescopic cylinder 610 extends, driving... The two clamping seats 611 on both sides move closer to each other to stably clamp the piano board. The sponge pad 612 can prevent the clamping seats 611 from damaging the piano board. Then, the piano board is raised to a safe height by controlling the telescopic cylinder 68. Then, the motor 63 is started to transport the piano board directly above the cutting table 1. Then, the telescopic rod of the telescopic cylinder 68 is extended and the telescopic rod of the telescopic cylinder 610 is retracted to place the piano board on the elastic rubber pad 11. After completion, the first transport assembly 6 returns to the top of the feeding conveyor 2, ready to transport the next piano board.
[0030] Simultaneously, the telescopic rods of the telescopic cylinders 42 around the cutting table 1 extend, thereby bringing the drive block 43 closer to the soundboard. The combination of the guide post 45 and the guide sleeve 44 ensures the accuracy of the drive block 43's movement. The air pump 48 inflates the silicone clamping seat 46 through the air nozzle 47. The shape of the silicone clamping seat 46 changes according to the surface of the soundboard, conforming to the surface of the soundboard to ensure clamping stability. Then, the telescopic rod of the hydraulic cylinder 7 extends, causing the CNC engraving machine 8 to descend and perform sound hole cutting on the soundboard. The elastic rubber pad 11 and the silicone clamping seat 46... The combination can avoid local indentations on the surface of the soundboard during processing. At the same time, the waste generated during processing can fall into the dust box 13 through the round holes 12 on both sides and be discharged from the cutting table 1. After processing, the hydraulic cylinder 7, CNC engraving machine 8 and flexible clamping component 4 are all reset. The second conveying component 6 transports the soundboard to the conveyor belt of the unloading conveyor 3 in the same way as the first conveying component 6 to complete the unloading step. At the same time, the first conveying component 6 transports the second soundboard to the cutting table 1 and repeats the above steps to perform the soundboard sound hole cutting operation.
[0031] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A high-efficiency sound hole cutting device for a violin soundboard, comprising: A cutting table (1) is characterized in that: a flexible clamping component (4) is provided on the cutting table (1), a feeding conveyor (2) is provided on one side of the cutting table (1), a discharging conveyor (3) is provided on the side of the cutting table (1) away from the feeding conveyor (2), a support frame (5) is provided on the outside of the cutting table (1), and a pair of handling components (6) are symmetrically provided on the top of the support frame (5).
2. The high-efficiency sound hole cutting device for violin soundboards according to claim 1, characterized in that: The flexible clamping assembly (4) includes several mounting plates (41) set on the cutting table (1). Each of the mounting plates (41) has a telescopic cylinder (42) on one side. Each telescopic cylinder (42) has a drive block (43) at the top of its telescopic rod. Each drive block (43) has a guide post (45) on one side. A guide sleeve (44) is set on the mounting plate (41) at the position corresponding to the guide post (45).
3. The high-efficiency sound hole cutting device for a violin soundboard according to claim 2, characterized in that: Each of the drive blocks (43) is provided with a pair of silicone clamping seats (46) on the side away from the telescopic cylinder (42). Each of the two silicone clamping seats (46) is provided with an air nozzle (47) on the bottom side. Each of the drive blocks (43) is provided with a pair of air pumps (48) on the side away from the silicone clamping seats (46). The air pumps (48) on the same side are connected to the air nozzles (47). Each of the silicone clamping seats (46) is provided with anti-slip textures (49).
4. The high-efficiency sound hole cutting device for a violin soundboard according to claim 3, characterized in that: The cutting table (1) is hollow inside. An elastic rubber pad (11) is provided in the middle of the upper part of the cutting table (1). Several round holes (12) are opened on both sides of the cutting table (1) of the elastic rubber pad (11). A dust guide box (13) is provided at the bottom of the cutting table (1).
5. The high-efficiency sound hole cutting device for a violin soundboard according to claim 4, characterized in that: The conveying assembly (6) includes a pair of support seats (61) disposed on the top of the support frame (5), a lead screw (62) is disposed between the two support seats (61), a motor (63) is disposed on one side of the top of the support frame (5), one end of the lead screw (62) is connected to the transmission end of the motor (63), a second drive block (64) is spirally sleeved on the outside of the lead screw (62), a guide rail (65) is disposed on the support frame (5) on one side of the lead screw (62), and the second drive block (64) is slidably disposed on the guide rail (65).
6. The high-efficiency sound hole cutting device for a violin soundboard according to claim 5, characterized in that: The bottom of the drive block 2 (64) is provided with a pair of mounting posts (66), the bottom of the two mounting posts (66) is provided with a mounting plate 2 (67), the bottom of the mounting plate 2 (67) is provided with a telescopic cylinder 2 (68), the bottom of the telescopic rod of the telescopic cylinder 2 (68) is provided with a mounting frame (69), the two sides of the mounting frame (69) are symmetrically provided with a pair of telescopic cylinder 3 (610), the telescopic rod of the telescopic cylinder 3 (610) passes through the mounting frame (69), the top of the telescopic rod of the two telescopic cylinder 3 (610) is provided with a clamping seat 2 (611), and the two clamping seats 2 (611) are each provided with a sponge pad (612) on one side.
7. The high-efficiency sound hole cutting device for a violin soundboard according to claim 6, characterized in that: A hydraulic cylinder (7) is provided on the top of the support frame (5) at the position corresponding to the cutting table (1), and a CNC engraving machine (8) is provided at the bottom of the telescopic rod of the hydraulic cylinder (7).