A rotary worktable for drum cavity processing

Abstract

This utility model discloses a rotary worktable for drum cavity processing, comprising a base, a connecting shaft rotatably mounted at the center of the top of the base, a circular rotary table fixedly mounted on the top of the connecting shaft, a gear ring for limiting and fixing fixedly mounted on the bottom of the circular rotary table, a fixing block fixedly mounted on the top of the base, a movable and adjustable limiting block that engages movably with the gear ring mounted on one side of the fixing block, four grooves circumferentially spaced on the top of the circular rotary table, each groove containing a threaded shaft rotatably mounted, and movable blocks slidably mounted inside the grooves connected to the surfaces of the four threaded shafts by threads, each movable block having a locking pin fixedly mounted on its top for fixing the drum; this rotary worktable for drum cavity processing has clamping and fixing and rotation adjustment functions, with stable and reliable adjustment and rotation, and its performance meets the requirements for drum cavity processing.

Description

Technical Field

[0001] This utility model belongs to the technical field of machining worktables, specifically a rotary worktable for drum cavity machining. Background Technology

[0002] The drum is an ancient percussion instrument widely used in various musical styles. Its basic structure includes a drum shell, a drum membrane, and a drum hoop, and it is usually made of wood, metal, or plastic. There are many types of drums, including snare drums, bass drums, tom-toms, etc., and each type of drum has its specific timbre and purpose. Drums produce sound by being struck, and have a strong sense of rhythm, making them an important rhythmic foundation for bands and orchestras.

[0003] During the drum cavity processing, necessary accessories such as drum rings, guide plates, and drum ears need to be installed on the drum cavity to prepare for the subsequent installation of the diaphragm. The installation of accessories is a circular operation on the drum cavity. The traditional installation method is to place the drum on the workbench, and then the worker holds the drum and the accessories while using tools to perform the installation operation. This operation is cumbersome, slow, and inefficient. Therefore, improvements are needed to address the above problems. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rotary worktable for drum cavity processing, comprising a base, a connecting shaft rotatably mounted at the center of the top of the base, a circular rotary table fixedly mounted at the top of the connecting shaft, a gear ring for limiting and fixing fixedly mounted at the bottom of the circular rotary table, a fixing block fixedly mounted at the top of the base, a movable and adjustable limiting block that is movably engaged with the gear ring on one side of the fixing block, four grooves are circumferentially and equidistantly formed at the top of the circular rotary table, threaded shafts are rotatably mounted inside each of the four grooves, movable blocks that are slidably mounted inside the grooves are threadedly connected to the surfaces of the four threaded shafts, and clamping pins for fixing the drum are fixedly mounted on the tops of the four movable blocks.

[0005] Preferably, the circular rotary table has an inner cavity in the middle, one end of each of the four threaded shafts extends into the inner cavity and is fixedly installed with a bevel gear, the four bevel gears mesh with each other, the other end of each of the four threaded shafts extends to the circumference of the circular rotary table and is fixedly installed with an adjusting wheel, and the surfaces of the four clamping pins are fixedly installed with clamping rubber sleeves for clamping and protecting the drum, thereby effectively clamping and fixing the drum during processing.

[0006] Preferably, an inner square tube is fixedly installed on the upper part of the fixing block, and a square rod is movably inserted into the inner square tube. A limiting block is fixedly installed at the end of the square rod located below the gear ring. A locking tooth block that matches and engages with the gear ring is fixedly installed on the top of the limiting block. A square pull ring is fixedly installed at the end of the square rod away from the limiting block. A return spring is sleeved on the surface of the square rod. The two ends of the return spring are fixedly connected to the fixing block and the square pull ring, respectively. This can effectively limit and fix the circular rotary table and enable the rotation adjustment operation of the circular rotary table.

[0007] Preferably, a support ring is fixedly installed at the bottom of the circular rotary table, and the bottom of the support ring is equidistantly equipped with ball bearings that roll in contact with the top of the base, thereby effectively supporting the circular rotary table and maintaining the stability of the circular rotary table's support and rotation.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This rotary worktable for drum cavity processing has clamping and fixing functions as well as rotation adjustment functions. Clamping and fixing can effectively ensure the stability of drum processing, while freeing up workers' hands to hold accessories and tools for installation. Rotation adjustment can process and rotate the fixed drum, thereby facilitating the installation of accessories on its circumference. At the same time, this rotary worktable has a simple structural design, is convenient to use and operate, and has stable and reliable adjustment and rotation. Its performance can meet the usage requirements of drum cavity processing. Attached Figure Description

[0009] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0010] In the attached diagram:

[0011] Figure 1 This is a schematic diagram of the rotary worktable structure for drum cavity processing according to this utility model;

[0012] Figure 2 This is a cross-sectional view of the rotary worktable for drum cavity processing according to this utility model;

[0013] Figure 3 This utility model Figure 2 A schematic diagram of a partial structure;

[0014] In the diagram: 1. Base; 2. Connecting shaft; 3. Circular rotating platform; 4. Gear ring; 5. Fixing block; 6. Limiting block; 7. Groove; 8. Threaded shaft; 9. Moving block; 10. Clamping pin; 11. Inner cavity; 12. Bevel gear; 13. Adjusting wheel; 14. Clamping rubber sleeve; 15. Inner square through tube; 16. Square rod; 17. Gear block; 18. Square pull ring; 19. Return spring; 20. Support ring; 21. Ball bearing. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Depend on Figures 1 to 3 The present invention includes a base 1, a connecting shaft 2 rotatably mounted at the center of the top of the base 1, a circular rotating platform 3 fixedly mounted on the top of the connecting shaft 2, a gear ring 4 for limiting and fixing fixedly mounted on the bottom of the circular rotating platform 3, a fixing block 5 fixedly mounted on the top of the base 1, a movable and adjustable limiting block 6 that engages with the gear ring 4 on one side of the fixing block 5, four grooves 7 are circumferentially and equidistantly formed on the top of the circular rotating platform 3, threaded shafts 8 are rotatably mounted inside each of the four grooves 7, and movable blocks 9 that are slidably mounted inside the grooves 7 are threadedly connected to the surfaces of the four threaded shafts 8, and clamping pins 10 for fixing the drum are fixedly mounted on the top of each of the four movable blocks 9; a support ring 20 is fixedly mounted on the bottom of the circular rotating platform 3, and ball bearings 21 that roll in contact with the top of the base 1 are circumferentially and equidistantly mounted on the bottom of the support ring 20, thereby effectively supporting the circular rotating platform 3 and maintaining the stability of the circular rotating platform 3 in support and rotation.

[0017] The circular rotary table 3 has an inner cavity 11 in the middle. One end of each of the four threaded shafts 8 extends into the inner cavity 11 and is fixedly installed with a bevel gear 12. The four bevel gears 12 mesh with each other. The other end of each of the four threaded shafts 8 extends to the circumference of the circular rotary table 3 and is fixedly installed with an adjusting wheel 13. The surfaces of the four clamping pins 10 are fixedly installed with clamping rubber sleeves 14 for clamping and protecting the drum, so as to effectively process, clamp and fix the drum.

[0018] Specifically, by placing the drum shell on top of the circular rotary table 3, rotating any one of the adjusting wheels 13 drives the threaded shaft 8 connected to it and the bevel gear 12 on the threaded shaft 8 to rotate. The rotation of the bevel gear 12, through the meshing connection of the other three bevel gears 12, drives the other three threaded shafts 8 to rotate, thereby causing the four threaded shafts 8 to rotate synchronously. The rotation of the four threaded shafts 8 causes the four moving blocks 9 to move relative to or away from each other. The movement of the four moving blocks 9 drives the four locking pins 10 to move, thereby causing the four locking pins 10 to lock the surface or inner wall of the drum shell through the locking rubber sleeves 14 on them, thus effectively ensuring the stability of the drum shell processing. At the same time, the four adjustable locking pins 10 can effectively process and fix drum shells of different sizes.

[0019] An inner square tube 15 is fixedly installed on the upper part of the fixed block 5. A square rod 16 is movably inserted into the inner square tube 15. A limiting block 6 is fixedly installed at the end of the square rod 16 located below the gear ring 4. A locking tooth block 17 that matches and engages with the gear ring 4 is fixedly installed on the top of the limiting block 6. A square pull ring 18 is fixedly installed at the end of the square rod 16 away from the limiting block 6. A return spring 19 is sleeved on the surface of the square rod 16. The two ends of the return spring 19 are fixedly connected to the fixed block 5 and the square pull ring 18 respectively, so as to effectively limit and fix the circular rotary table 3 and enable the rotation adjustment operation of the circular rotary table 3.

[0020] Specifically, when the toothed block 17 engages with the gear ring 4, the toothed block 17 will limit and fix the gear ring 4, preventing the circular rotary table 3 from rotating and adjusting.

[0021] When the circular rotary table 3 needs to be rotated, the square pull ring 18 pushes the square rod 16 to move, which compresses the return spring 19. The movement of the square rod 16 will drive the limit block 6 and the toothed block 17 to move, thereby separating the toothed block 17 from the toothed ring 4. At this time, the circular rotary table 3 can be rotated and adjusted. The rotation of the circular rotary table 3 will drive the fixed drum shell to rotate, which facilitates the installation of components on the surface of the drum shell.

[0022] This rotary worktable for drum cavity processing has clamping and fixing functions as well as rotation adjustment functions. Clamping and fixing can effectively ensure the stability of drum processing, while freeing up workers' hands to handle parts and tools for installation. Rotation adjustment allows the fixed drum to be rotated for processing, thus facilitating the installation of parts on its circumference. In addition, this rotary worktable has a simple structural design, is easy to use and operate, and has stable and reliable adjustment and rotation. Its performance can meet the needs of drum cavity processing.

Claims

1. A rotary table for drum processing, comprising a base (1), characterized in that: A connecting shaft (2) is rotatably installed in the middle of the top of the base (1). A circular rotating platform (3) is fixedly installed on the top of the connecting shaft (2). A gear ring (4) for limiting and fixing is fixedly installed at the bottom of the circular rotating platform (3). A fixing block (5) is fixedly installed on the top of the base (1). A limiting block (6) that can be moved and adjusted and is movably engaged with the gear ring (4) is installed on one side of the fixing block (5). Four grooves (7) are equidistantly arranged in a ring on the top of the circular rotating platform (3). A threaded shaft (8) is rotatably installed inside each of the four grooves (7). A movable block (9) that is slidably installed inside the groove (7) is threadedly connected to the surface of the four threaded shafts (8). A clamping pin (10) for fixing the drum is fixedly installed on the top of each of the four movable blocks (9).

2. A rotary table for use in processing a drum according to claim 1, wherein: The circular rotary table (3) has an inner cavity (11) in the middle. One end of each of the four threaded shafts (8) extends into the inner cavity (11) and is fixedly installed with bevel gears (12). The four bevel gears (12) mesh with each other. The other end of each of the four threaded shafts (8) extends to the circumference of the circular rotary table (3) and is fixedly installed with adjusting wheels (13). The surfaces of the four clamping pins (10) are fixedly installed with clamping rubber sleeves (14) for clamping protection of the drum.

3. A rotary table for use in processing a drum according to claim 1, wherein: An inner square tube (15) is fixedly installed on the upper part of the fixed block (5). A square rod (16) is movably inserted into the inner square tube (15). A limiting block (6) is fixedly installed at the end of the square rod (16) located below the gear ring (4). A locking tooth block (17) that matches and engages with the gear ring (4) is fixedly installed on the top of the limiting block (6). A square pull ring (18) is fixedly installed at the end of the square rod (16) away from the limiting block (6). A return spring (19) is sleeved on the surface of the square rod (16). The two ends of the return spring (19) are fixedly connected to the fixed block (5) and the square pull ring (18) respectively.

4. The rotary table for processing of drum cavity according to claim 1, characterized in that: The bottom of the circular rotating platform (3) is fixedly installed with a support ring (20), and the bottom of the support ring (20) is equidistantly equipped with balls (21) that roll in contact with the top of the base (1).

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