A carbon fiber shell drilling device and method for musical instrument production

Abstract

The present application provides a carbon fiber shell drilling device and method for musical instrument production, which relates to the technical field of carbon fiber product drilling, including a mounting frame and a punching machine; a rotating block is rotatably connected to the mounting frame, and inner support rods for supporting the inner wall of the carbon fiber shell are detachably connected at both ends of the rotating block; an outer support rod for fixing the outer wall of the carbon fiber shell is slidably connected to the mounting frame, and punching openings for punching holes on the surface of the carbon fiber shell are provided on the outer support rod and the inner support rod; a locking baffle for fixing the side wall of the carbon fiber shell is slidably connected to the rotating block, and a locking block is fixedly connected to the lower part of the outer support rod near the locking baffle, and the locking block can push the locking baffle to move to the side close to the carbon fiber shell. The present application can reduce the probability of burrs or delamination inside the carbon fiber product when punching holes on the surface of a cylindrical carbon fiber product.

Description

Technical Field

[0001] The present application relates to the technical field of drilling holes in carbon fiber products, and in particular to a device and method for drilling holes in a carbon fiber shell for producing musical instruments. Background Art

[0002] Carbon fiber products are various products made of carbon fiber materials, which have the characteristics of high strength, high modulus and light weight. These products play a vital role in modern science and technology and industry. In recent years, they have become more and more popular in the music industry. Some musical instruments use the unique characteristics of carbon fiber composite materials, such as light weight, high strength and stability, to solve some problems faced by traditional wooden instruments. Carbon fiber drilling device is a device specially used for processing carbon fiber composite materials. Carbon fiber composite materials are widely used due to their high strength, light weight, corrosion resistance and other characteristics.

[0003] Referring to the Chinese patent with publication number CN110539358B, the subject name is a step-by-step drilling device for carbon fiber composite materials and its use method. The device drills the surface of the carbon fiber product by setting two drilling mechanisms of different sizes. A smaller diameter drill is used for pre-drilling, and then a larger diameter drill is used for formal drilling, so as to reduce the damage around the raw material hole caused by traditional one-time drilling.

[0004] According to the above technical scheme, when drilling the surface of a cylindrical carbon fiber product, due to the high hardness and brittleness of the carbon fiber composite material, tearing defects are easily produced during processing. At the same time, burrs or delamination damage will appear inside the cylindrical carbon fiber product. After the damage, the air flow inside the cylindrical carbon fiber product will be affected by the burrs or delamination, resulting in interference with the airflow, resulting in impure tone and affecting the sound quality of the finished cylindrical carbon fiber product. Summary of the invention

[0005] In view of this, the present application provides a carbon fiber shell drilling device for musical instrument production, which aims to solve the problem of burrs or delamination inside cylindrical carbon fiber products.

[0006] In the first aspect, a carbon fiber shell drilling device for musical instrument production adopts the following technical solution:

[0007] The present application provides a carbon fiber shell drilling device for musical instrument production, which adopts the following technical scheme: a mounting frame and a puncher; a rotating block is rotatably connected to the mounting frame, and inner support rods for supporting the inner wall of the carbon fiber shell are detachably connected at both ends of the rotating block; an outer support rod for fixing the outer wall of the carbon fiber shell is slidably connected to the mounting frame, and punching openings for punching holes in the surface of the carbon fiber shell are provided on the outer support rod and the inner support rod; a locking baffle for fixing the side wall of the carbon fiber shell is slidably connected to the rotating block, and a locking block is fixedly connected to the lower part of the outer support rod near the locking baffle, and the locking block can push the locking baffle to move to the side close to the carbon fiber shell.

[0008] Clamping the inside and outside of the cylindrical carbon fiber product can improve the stability during the drilling process and reduce the vibration caused by cutting force, thereby improving the processing accuracy of the hole. At the same time, the cylindrical carbon fiber product may be deformed or delaminated during the processing. After supporting the inner wall of the cylindrical carbon fiber product, it can provide support for the inner wall of the cylindrical carbon fiber product when drilling, reducing the deformation or delamination of the cylindrical carbon fiber product.

[0009] Optionally, the mounting frame is provided with a clamping mechanism for driving the outer support rod to move closer to the outer wall of the carbon fiber shell.

[0010] Optionally, the clamping mechanism includes a clamping block fixedly connected to the connection between the outer support rod and the mounting frame, and a clamping plate is hinged on the mounting frame for driving the clamping block to move downward, and the clamping plate is fixedly connected to the clamping cylinder on the side away from the clamping block.

[0011] By further pressing the outer surface of the cylindrical carbon fiber product, the position of the carbon fiber product can be kept fixed during the drilling process to a certain extent, reducing the hole position deviation caused by vibration or movement, and at the same time reducing the probability of deformation or internal damage of the carbon fiber product due to cutting force during the drilling process.

[0012] Optionally, the puncher is slidably connected to the mounting frame, and a linear motor is slidably connected to the mounting frame for driving the puncher to move in a horizontal direction.

[0013] The sliding function enables the puncher to move continuously on the cylindrical carbon fiber product, thereby achieving continuous punching, reducing the time for material clamping and repositioning, and improving processing efficiency.

[0014] Optionally, an abutment block for clamping the inner support rod is fixedly connected to the connection between the inner support rod and the rotating block, and an abutment interface is provided on the rotating block, and the inner support rod can be fixed after the abutment block engages with the abutment interface.

[0015] The snap-on connection enables faster installation and removal of cylindrical carbon fiber products without the need for special tools, saving time and labor.

[0016] In a second aspect, the present application provides a method for drilling a carbon fiber shell for musical instrument production, wherein the drilling method is:

[0017] S1. Pull the inner support rod to move the abutment block on the inner support rod out of the abutment interface, and set the cylindrical carbon fiber product on the inner support rod, rotate the rotating block, so that the rotating block moves the cylindrical carbon fiber product to the side close to the outer support rod;

[0018] S2. The outer support rod moves downward under the action of gravity, so that the outer support rod fixes the outer wall of the cylindrical carbon fiber product. During the downward movement of the outer support rod, the locking block fixedly connected below the outer support rod pushes the locking baffle to move closer to the side wall of the cylindrical carbon fiber product and fixes the cylindrical carbon fiber product;

[0019] S3. Start the linear motor, which drives the punching machine to move in the horizontal direction to punch holes in the cylindrical carbon fiber product.

[0020] Fixing the outer wall and the inner wall of the cylindrical carbon fiber product can reduce burr and delamination damage during the punching of the surface of the cylindrical carbon fiber product, while improving the air flow stability inside the finished product.

[0021] Optionally, in S2, after the cylindrical carbon fiber product in S2 is initially fixed, the clamping cylinder is started so that the clamping cylinder drives the clamping plate to rotate, and after the clamping plate rotates, the clamping block is pressed downward to make the outer support rod further approach the surface of the cylindrical carbon fiber product, and after the outer support rod is pulled, the inner wall and the outer wall of the cylindrical carbon fiber product are fixed.

[0022] It can reduce the hole position deviation caused by vibration or movement, and at the same time reduce the deformation or internal damage caused by cutting force during the drilling process of carbon fiber products.

[0023] Optionally, in S3, after the surface of the cylindrical carbon fiber product is punched, the rotating block is rotated to move the punched cylindrical carbon fiber product to the side away from the outer support rod, the inner support rod is pulled downward to move the abutment block on the inner support rod out of the abutment interface, the cylindrical carbon fiber product is removed, and the undrilled cylindrical carbon fiber product is installed for further processing.

[0024] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Clamping the inside and outside of the cylindrical carbon fiber product can improve the stability during the drilling process and reduce the vibration caused by the cutting force, thereby improving the processing accuracy of the hole. At the same time, the cylindrical carbon fiber product may be deformed or delaminated during the processing. After supporting the inner wall of the cylindrical carbon fiber product, it can provide support for the inner wall of the cylindrical carbon fiber product when drilling, reducing the deformation or delamination of the cylindrical carbon fiber product.

[0026] 2. By further pressing the outer surface of the cylindrical carbon fiber product, the position of the carbon fiber product can be kept fixed during the drilling process to a certain extent, reducing the hole position deviation caused by vibration or movement, and at the same time reducing the probability of deformation or internal damage of the carbon fiber product due to cutting force during the drilling process.

[0027] 3. When punching holes on the surface of the cylindrical carbon fiber product, the linear motor is started so that the linear motor drives the punching machine to move, and the surface of the cylindrical carbon fiber product is punched during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a carbon fiber shell drilling device for musical instrument production according to this embodiment;

[0029] Figure 2 This is a schematic diagram of the structure of the pressing block and the pressing plate of this embodiment;

[0030] Figure 3 This is a schematic diagram of the structure of the locking baffle and the locking block of this embodiment;

[0031] Figure 4 It is a schematic diagram of the structure of the abutment block and the abutment interface of this embodiment.

[0032] Explanation of the reference numerals in the accompanying drawings: 1. Mounting frame; 11. Punching machine; 2. Rotating block; 21. Inner support rod; 22. Outer support rod; 3. Punching opening; 4. Locking baffle; 41. Locking block; 5. Pressing mechanism; 51. Pressing block; 52. Pressing plate; 53. Pressing cylinder; 6. Linear motor; 7. Abutment block; 71. Abutment interface; 8. Cylindrical carbon fiber product. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 4 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0034] In the first aspect, a carbon fiber shell drilling device for musical instrument production adopts the following technical solution:

[0035] Reference Figure 1 and Figure 3 The present embodiment provides a carbon fiber shell drilling device for musical instrument production, wherein a mounting frame 1 is fixedly connected to a horizontal plane, a punching machine 11 is arranged on the mounting frame 1, a rotating block 2 is rotatably connected to the mounting frame 1, and inner support rods 21 for supporting the inner wall of the carbon fiber shell are detachably connected at both ends of the rotating block 2, an outer support rod 22 for fixing the outer wall of the carbon fiber shell is slidably connected to the mounting frame 1, and punching openings 3 for punching holes in the surface of the carbon fiber shell are provided on the outer support rod 22 and the inner support rod 21, a locking baffle 4 for fixing the side wall of the carbon fiber shell is slidably connected to the rotating block 2, and a locking block 41 is fixedly connected to the lower part of the outer support rod 22 near the locking baffle 4, and the locking block 41 can push the locking baffle 4 to move toward the side close to the carbon fiber shell.

[0036] When punching holes on the surface of the cylindrical carbon fiber product 8, the cylindrical carbon fiber product 8 is sleeved on the inner support rod 21, and the inner support rod 21 is fixed to the mounting frame 1 to abut against the inner wall of the cylindrical carbon fiber product 8. After the abutment, when the outer support rod 22 moves downward, the outer support rod 22 fixes the outer wall of the cylindrical carbon fiber product 8. After the outer support rod 22 moves downward, the locking block 41 on the outer support rod 22 pushes the locking baffle 4 to move, so that the locking baffle 4 fixes the side wall of the cylindrical carbon fiber product 8, so that the cylindrical The outer wall of the cylindrical carbon fiber product 8 is abutted against the outer support rod 22, and the inner wall of the cylindrical carbon fiber product 8 is abutted against the inner support rod 21. The punching machine 11 is moved toward the punching hole 3 on the outer support rod 22 to punch holes on the surface of the cylindrical carbon fiber product 8. After punching a cylindrical carbon fiber product 8, the rotating block 2 is rotated to move the inner support rod 21 close to the outer support rod 22 to the side away from the outer support rod 22, and the cylindrical carbon fiber product 8 on the inner support rod 21 is removed, and the cylindrical carbon fiber product 8 without punching is installed.

[0037] Clamping the inside and outside of the cylindrical carbon fiber product 8 can improve the stability during the drilling process and reduce the vibration caused by cutting force, thereby improving the processing accuracy of the hole. At the same time, the cylindrical carbon fiber product 8 may be deformed or delaminated during the processing. After supporting the inner wall of the cylindrical carbon fiber product 8, it is possible to provide support for the inner wall of the cylindrical carbon fiber product 8 when drilling, thereby reducing the deformation or delamination of the cylindrical carbon fiber product 8.

[0038] Reference Figure 1 and Figure 2The mounting frame 1 is provided with a clamping mechanism 5 for driving the outer support rod 22 to move closer to the outer wall of the carbon fiber shell. The clamping mechanism 5 includes a clamping block 51 fixedly connected to the connection between the outer support rod 22 and the mounting frame 1, and a clamping plate 52 is hinged on the mounting frame 1 for driving the clamping block 51 to move downward, and the side of the clamping plate 52 away from the clamping block 51 is fixedly connected to a clamping cylinder 53.

[0039] After the outer support rod 22 moves downward under the action of gravity, the clamping cylinder 53 is started to move the output shaft of the clamping cylinder 53 upward, and the output shaft drives the clamping plate 52 to rotate. After the rotation, the clamping plate 52 abuts against the clamping block 51, so that the clamping plate 52 drives the clamping block 51 to move downward, and drives the outer support rod 22 to continue to move downward, so as to further compress the cylindrical carbon fiber product 8.

[0040] By further pressing the outer surface of the cylindrical carbon fiber product 8, the position of the carbon fiber product can be kept fixed during the drilling process to a certain extent, reducing the hole position deviation caused by vibration or movement, and at the same time reducing the deformation or internal damage of the carbon fiber product caused by cutting force during the drilling process.

[0041] Reference Figure 1 The punching machine 11 is slidably connected to the mounting frame 1, and a linear motor 6 is fixedly connected to the mounting frame 1 for driving the punching machine 11 to move in a horizontal direction.

[0042] When punching holes on the surface of the cylindrical carbon fiber product 8, the linear motor 6 is started, so that the linear motor 6 drives the punching machine 11 to move, and the surface of the cylindrical carbon fiber product 8 is punched during the movement.

[0043] Reference Figure 1 and Figure 4 The connection between the inner support rod 21 and the rotating block 2 is fixedly connected with an abutment block 7 for clamping the inner support rod 21. The rotating block 2 is provided with an abutment interface 71, and the inner support rod 21 can be fixed after the abutment block 7 is engaged with the abutment interface 71.

[0044] When the cylindrical carbon fiber product 8 is processed, the inner support rod 21 is pulled to move the abutment block 7 on the inner support rod 21 out of the abutment port 71 , and the cylindrical carbon fiber product 8 is removed.

[0045] A carbon fiber shell drilling device for musical instrument production in the embodiment of the present application:

[0046] When punching holes on the surface of the cylindrical carbon fiber product 8, the cylindrical carbon fiber product 8 is sleeved on the inner support rod 21, and the inner support rod 21 is fixed to the mounting frame 1 to abut against the inner wall of the cylindrical carbon fiber product 8. After the abutment, when the outer support rod 22 moves downward, the outer support rod 22 fixes the outer wall of the cylindrical carbon fiber product 8. After the outer support rod 22 moves downward, the locking block 41 on the outer support rod 22 pushes the locking baffle 4 to move, so that the locking baffle 4 fixes the side wall of the cylindrical carbon fiber product 8, so that the cylindrical The outer wall of the cylindrical carbon fiber product 8 is abutted against the outer support rod 22, and the inner wall of the cylindrical carbon fiber product 8 is abutted against the inner support rod 21. The punching machine 11 is moved toward the punching hole 3 on the outer support rod 22 to punch holes on the surface of the cylindrical carbon fiber product 8. After punching a cylindrical carbon fiber product 8, the rotating block 2 is rotated to move the inner support rod 21 close to the outer support rod 22 to the side away from the outer support rod 22, and the cylindrical carbon fiber product 8 on the inner support rod 21 is removed, and the cylindrical carbon fiber product 8 without punching is installed.

[0047] In a second aspect, the present application provides a method for drilling a carbon fiber shell for musical instrument production, wherein the drilling method is:

[0048] S1. Pull the inner support rod 21 to move the abutment block 7 on the inner support rod 21 out of the abutment port 71, and sleeve the cylindrical carbon fiber product 8 on the inner support rod 21, rotate the rotating block 2, and move the cylindrical carbon fiber product 8 to the side close to the outer support rod 22;

[0049] S2. The outer support rod 22 moves downward under the action of gravity, so that the outer support rod 22 fixes the outer wall of the cylindrical carbon fiber product 8. During the downward movement of the outer support rod 22, the locking block 41 fixedly connected below the outer support rod 22 pushes the locking baffle 4 to move close to the side wall of the cylindrical carbon fiber product 8 and fixes the cylindrical carbon fiber product 8;

[0050] S3. Start the linear motor 6, which drives the punching machine 11 to move in the horizontal direction to punch holes in the cylindrical carbon fiber product 8.

[0051] In S2, after the cylindrical carbon fiber product 8 in S2 is preliminarily fixed, the clamping cylinder 53 is started, so that the clamping cylinder 53 drives the clamping plate 52 to rotate. After the clamping plate 52 rotates, the clamping block 51 is pressed downward to make the outer support rod 22 further approach the surface of the cylindrical carbon fiber product 8. After the outer support rod 22 is pulled, the inner wall and the outer wall of the cylindrical carbon fiber product 8 are fixed.

[0052] In S3, after the surface of the cylindrical carbon fiber product 8 is punched, the rotating block 2 is rotated to move the punched cylindrical carbon fiber product 8 to the side away from the outer support rod 22, and the inner support rod 21 is pulled downward to move the abutment block 7 on the inner support rod 21 out of the abutment port 71, and the cylindrical carbon fiber product 8 is removed, and the un-punched cylindrical carbon fiber product 8 is installed for re-processing.

[0053] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A carbon fiber shell drilling device for musical instrument production, comprising a mounting frame and a punching machine, characterized in that: Also includes: A rotating block rotatably connected to the mounting frame, inner support rods for supporting the inner wall of the carbon fiber shell are detachably connected at both ends of the rotating block, an outer support rod for fixing the outer wall of the carbon fiber shell is slidably connected to the mounting frame, a punching hole for punching holes on the surface of the carbon fiber shell is provided on the outer support rod and the inner support rod, a locking baffle for fixing the side wall of the carbon fiber shell is slidably connected to the rotating block, a locking block is fixedly connected to the lower part of the outer support rod near the locking baffle, and the locking block can push the locking baffle to move to a side close to the carbon fiber shell; The puncher is slidably connected to the mounting frame, and a linear motor is slidably connected to the mounting frame for driving the puncher to move in the horizontal direction; an abutment block for clamping the inner support rod is fixedly connected to the connection between the inner support rod and the rotating block, and an abutment interface is provided on the rotating block, and the inner support rod can be fixed after the abutment block and the abutment interface are engaged; The drilling method of the carbon fiber shell drilling device for musical instrument production comprises: S1, pull the inner support rod to move the abutment block on the inner support rod out of the abutment interface, and sleeve the cylindrical carbon fiber product on the inner support rod, and rotate the rotating block to move the cylindrical carbon fiber product to the side close to the outer support rod; S2, the outer support rod moves downward under the action of gravity, so that the outer support rod fixes the outer wall of the cylindrical carbon fiber product. During the downward movement of the outer support rod, the locking block fixedly connected below the outer support rod pushes the locking baffle to move close to the side wall of the cylindrical carbon fiber product and fixes the cylindrical carbon fiber product; S3, starting the linear motor, which drives the punching machine to move in the horizontal direction to punch holes in the cylindrical carbon fiber product.

2. A carbon fiber shell drilling device for musical instrument production according to claim 1, characterized in that: The mounting frame is provided with a clamping mechanism for driving the outer support rod to move close to the outer wall of the carbon fiber shell.

3. A carbon fiber shell drilling device for musical instrument production according to claim 2, characterized in that: The clamping mechanism includes a clamping block fixedly connected to the connection between the outer support rod and the mounting frame, and a clamping plate is hinged on the mounting frame for driving the clamping block to move downward. The clamping plate is fixedly connected to the clamping cylinder on the side away from the clamping block.

4. A method for drilling a carbon fiber shell for musical instrument production, applied to a carbon fiber shell drilling device for musical instrument production, characterized in that: The carbon fiber shell drilling device for musical instrument production comprises: a mounting frame and a punching machine, a rotating block rotatably connected to the mounting frame, inner support rods for supporting the inner wall of the carbon fiber shell are detachably connected at both ends of the rotating block, an outer support rod for fixing the outer wall of the carbon fiber shell is slidably connected to the mounting frame, punching holes for punching holes in the surface of the carbon fiber shell are provided on the outer support rod and the inner support rod, a locking baffle for fixing the side wall of the carbon fiber shell is slidably connected to the rotating block, a locking block is fixedly connected below the outer support rod near the locking baffle, and the locking block can push the locking baffle to move to a side close to the carbon fiber shell; A clamping mechanism is provided for driving the outer support rod to move close to the outer wall of the carbon fiber shell, the clamping mechanism includes a clamping block fixedly connected at the connection between the outer support rod and the mounting frame, a clamping plate is hinged on the mounting frame for driving the clamping block to move downward, and the clamping plate is fixedly connected to the clamping cylinder on the side away from the clamping block; the puncher is slidably connected to the mounting frame, and a linear motor is slidably connected to the mounting frame for driving the puncher to move in the horizontal direction; an abutment block for clamping the inner support rod is fixedly connected at the connection between the inner support rod and the rotating block, and an abutment interface is provided on the rotating block, and the inner support rod can be fixed after the abutment block is engaged with the abutment interface; The method for drilling a carbon fiber shell for producing a musical instrument comprises: S1, pull the inner support rod to move the abutment block on the inner support rod out of the abutment interface, and sleeve the cylindrical carbon fiber product on the inner support rod, and rotate the rotating block to move the cylindrical carbon fiber product to the side close to the outer support rod; S2, the outer support rod moves downward under the action of gravity, so that the outer support rod fixes the outer wall of the cylindrical carbon fiber product. During the downward movement of the outer support rod, the locking block fixedly connected below the outer support rod pushes the locking baffle to move close to the side wall of the cylindrical carbon fiber product and fixes the cylindrical carbon fiber product; S3, starting the linear motor, which drives the punching machine to move in the horizontal direction to punch holes in the cylindrical carbon fiber product.

5. A method for drilling a carbon fiber shell for musical instrument production according to claim 4, characterized in that: In S2, after the cylindrical carbon fiber product in S2 is initially fixed, the clamping cylinder is started to drive the clamping plate to rotate. After the clamping plate rotates, the clamping block is pressed downward to make the outer support rod further approach the surface of the cylindrical carbon fiber product. After the outer support rod is pulled, the inner wall and the outer wall of the cylindrical carbon fiber product are fixed.

6. A method for drilling a carbon fiber shell for musical instrument production according to claim 4, characterized in that: In S3, after the surface of the cylindrical carbon fiber product is punched, the rotating block is rotated to move the punched cylindrical carbon fiber product to the side away from the outer support rod, and the inner support rod is pulled downward to move the abutment block on the inner support rod out of the abutment interface, and the cylindrical carbon fiber product is removed, and the un-punched cylindrical carbon fiber product is installed for re-processing.

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