Efficient coating device for hard alloy drill bit
By combining drive motors and stepper motors, uniform coating and rapid curing of the drill bit are achieved, solving the problems of uneven coating and low efficiency of traditional drying, and improving coating adhesion and production efficiency.
Patent Information
- Application Number
- CN202422981386.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing carbide drill bit coating devices are prone to uneven coating thickness during the spraying process, and traditional drying methods are inefficient, affecting the adhesion and uniformity of the coating.
The system employs a combination of a drive motor, a stepper motor, a threaded rod, and a nozzle to achieve horizontal rotation of the drill bit and lifting of the nozzle. Combined with control components and a dryer, this ensures uniform coating coverage and accelerates curing.
It achieves uniform coating coverage, reduces the risk of coating unevenness and bubbles, significantly improves coating adhesion and production efficiency, and reduces the time of traditional drying methods.
Smart Images

Figure CN223543301U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alloy drill bit processing technology, and more specifically, to a high-efficiency coating device for carbide drill bits. Background Technology
[0002] When using carbide drill bits, it is often necessary to drill parts made of metal and other materials. When drilling hard parts, the carbide drill bits themselves are easily damaged. Therefore, a nano protective layer is usually sprayed on the surface of the carbide drill bit for protection. The device for spraying the carbide drill bit is called the carbide drill bit nano coating device.
[0003] Chinese patent document CN215197730U discloses a high-efficiency coating device for carbide drill bits, including a base. A vertical fixing plate is fixedly connected to the upper right side of the base. A first motor is fixedly mounted on the right side wall of the fixing plate. A cover with an opening on its right side wall is slidably connected to the upper right side of the base, located on the left side of the fixing plate. A horizontal fixing cylinder is fixedly connected to the middle of the left side wall of the fixing plate. A movable column is slidably connected inside the fixing cylinder, with its left end extending to the outside of the fixing cylinder. A blind hole is horizontally opened in the middle of the right end of the movable column, and a horizontal rotating shaft is slidably connected inside the blind hole, with its right end extending to the outside of the blind hole. This invention not only facilitates the fixing of drill bits of different sizes during use but also facilitates uniform coating of the drill bits, improving energy-saving and environmental protection effects, saving time and effort, and achieving high efficiency.
[0004] When the above-mentioned device sprays coating on the drill bit substrate, the drill bit substrate rotates in a wave-like trajectory and moves back and forth repeatedly, which means that the coating sprayed by the nozzle can only cover a specific area and angle. As a result, the coating may be too thick in some areas and insufficient in others, leading to uneven coating thickness. In view of this, we propose a high-efficiency coating device for carbide drill bits. Utility Model Content
[0005] 1. Technical problems to be solved
[0006] The purpose of this invention is to provide a high-efficiency coating device for carbide drill bits to solve the problems mentioned in the background art.
[0007] 2. Technical Solution
[0008] A high-efficiency coating device for carbide drill bits includes a worktable. An outer mounting plate is fixedly installed on one side of the bottom of the worktable. A drive motor is fixedly installed on the bottom of the outer mounting plate. A rotating shaft is provided at the bottom of the drive motor. A T-shaped support is threadedly connected to the end of the rotating shaft. A three-jaw chuck is fixedly installed on the top of the T-shaped support. A cylinder is threadedly connected to one side of the top of the worktable. A dust cover is threadedly connected to the output end of the cylinder. A stepper motor is fixedly installed on one side of the top of the dust cover. A threaded rod is provided at the bottom of the stepper motor. A lifting block is movably installed on the surface of the threaded rod. A nozzle is fixedly installed on the inner side of the lifting block.
[0009] Preferably, a storage box is fixedly installed on the top of the workbench near the cylinder, the storage box has a built-in drive assembly, and a telescopic hose is fixedly installed on the top of the storage box, the end of the telescopic hose being fixedly connected to the outside of the lifting block.
[0010] Preferably, the top of the workbench has sliding grooves on both sides, and a baffle is fixedly installed on the other side of the top of the workbench.
[0011] Preferably, a control component is fixedly installed on the outer side of the dust cover and the side closest to the cylinder, a dryer is fixedly installed on the inner side of the control component, and a vacuum cleaner is fixedly installed on the other side of the dust cover.
[0012] Preferably, a sealing gasket is fixedly installed at the bottom of the dust cover, and a T-shaped clip is fixedly installed at the bottom of the sealing gasket.
[0013] Preferably, a lifting groove is provided on the outer side of the dust cover and the side near the stepper motor, and a limit plate is fixedly installed on the outer side of the lifting block.
[0014] Preferably, a bearing is movably mounted on the surface of the T-shaped support.
[0015] 3. Beneficial effects
[0016] Compared with the existing technology, the advantages of this utility model are as follows:
[0017] 1. Through the cooperation between the overall structure, the drill bit substrate can be rotated horizontally and the nozzle can be raised and lowered, thereby ensuring that the surface of the drill bit substrate is uniformly coated, avoiding uneven or missing coatings. At the same time, the coated coating can be dried after spraying, thereby increasing the efficiency and adhesion of the coating spraying.
[0018] 2. By controlling the settings of components and dryers, it is easy to accelerate coating curing, reduce residual solvents or uncured components on the substrate surface, and reduce the risk of uneven coating surface or bubble formation, ensuring a more uniform and smooth coating. At the same time, it significantly reduces the time required by traditional drying methods, thereby achieving the goal of speeding up the production process and improving production efficiency. Attached Figure Description
[0019] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a rear-view diagram of the overall structure of this utility model;
[0021] Figure 3 This is an enlarged schematic diagram of part of the structure of this utility model;
[0022] Figure 4 This is a bottom sectional view of part of the structure of this utility model;
[0023] Figure 5 This is a schematic cross-sectional view of the back of the overall structure of this utility model;
[0024] The following are the labels in the diagram: 1. Workbench; 2. Outer mounting plate; 3. Drive motor; 4. Rotary shaft; 5. T-shaped support base; 6. Three-jaw chuck; 7. Cylinder; 8. Dust cover; 9. Stepper motor; 10. Threaded rod; 11. Lifting block; 12. Nozzle; 13. Storage bin; 14. Telescopic hose; 15. Slide groove; 16. Baffle; 17. Control components; 18. Dryer; 19. Vacuum cleaner; 20. Sealing gasket; 21. T-shaped retaining strip; 22. Lifting groove; 23. Limiting plate; 24. Bearing. Detailed Implementation
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Please see Figure 1-5 This utility model provides a technical solution:
[0029] A high-efficiency coating device for carbide drill bits includes a worktable 1. An outer mounting plate 2 is fixedly installed on one side of the bottom of the worktable 1. A drive motor 3 is fixedly installed on the bottom of the outer mounting plate 2. A rotating shaft 4 is located at the bottom of the drive motor 3. A T-shaped support seat 5 is threadedly connected to the end of the rotating shaft 4. A three-jaw chuck 6 is fixedly installed on the top of the T-shaped support seat 5. A cylinder 7 is threadedly connected to one side of the top of the worktable 1. A dust cover 8 is threadedly connected to the output end of the cylinder 7. A stepper motor 9 is fixedly installed on one side of the top of the dust cover 8. A threaded rod 10 is located at the bottom of the stepper motor 9. A movable surface of the threaded rod 10 is mounted on its surface. The lifting block 11 has a nozzle 12 fixedly installed on its inner side. The drive motor 3, rotating shaft 4, T-shaped support 5, and three-jaw chuck 6 facilitate the clamping and rotation of the drill bit base, so as to fully cover the surface of the drill bit substrate with coating. The dust cover 8 helps to limit the coating material and prevent it from splashing and interfering with the surrounding environment. The stepper motor 9, threaded rod 10, lifting block 11, and nozzle 12 facilitate vertical reciprocating spraying of the coating, thereby ensuring that the drill bit is fully covered with coating. At the same time, it can adapt to drill bit substrates of different sizes, increasing the flexibility of the device.
[0030] Specifically, a storage box 13 is fixedly installed on the top of the workbench 1 near the cylinder 7. The storage box 13 has a built-in drive assembly. A telescopic hose 14 is fixedly installed on the top of the storage box 13. The end of the telescopic hose 14 is fixedly connected to the outside of the lifting block 11. The storage box 13 and the telescopic hose 14 facilitate the limiting and transfer of coating material so that the drill bit substrate can be coated subsequently.
[0031] Furthermore, both sides of the top of the workbench 1 are provided with sliding grooves 15, and a baffle 16 is fixedly installed on the other side of the top of the workbench 1. The sliding grooves 15 facilitate the movement space of the T-shaped clips 21, and can also work with the T-shaped clips 21 to ensure the stability of the dust cover 8 during movement. The baffle 16 facilitates the limitation of the stroke of the dust cover 8, and can also work with the dust cover 8 to limit the coating material.
[0032] It is worth noting that a control component 17 is fixedly installed on the outer side of the dust cover 8 and near the cylinder 7, and a dryer 18 is fixedly installed on the inner side of the control component 17. A vacuum cleaner 19 is fixedly installed on the other side of the dust cover 8. The control component 17 and the dryer 18 facilitate accelerated coating curing, reduce residual solvents or uncured components on the substrate surface, and reduce the risk of uneven coating surface or bubble formation, ensuring a more uniform and smooth coating. At the same time, it significantly reduces the time required by traditional drying methods, thereby achieving the goal of accelerating the production process and improving production efficiency. The vacuum cleaner 19 facilitates the absorption of scattered coating materials, thereby ensuring the working environment inside the dust cover 8.
[0033] It is worth noting that a sealing gasket 20 is fixedly installed at the bottom of the dust cover 8, and a T-shaped retaining strip 21 is fixedly installed at the bottom of the sealing gasket 20. The sealing gasket 20 helps to increase the sealing at the connection between the bottom of the dust cover 8 and the workbench 1, and the T-shaped retaining strip 21 helps to cooperate with the slide groove 15 to ensure the stability of the dust cover 8 during movement, thereby ensuring the sealing when the dust cover 8 and the baffle 16 are closed.
[0034] In addition, a lifting groove 22 is provided on the outer side of the dust cover 8 and the side close to the stepper motor 9, and a limit plate 23 is fixedly installed on the outer side of the lifting block 11. The lifting groove 22 facilitates the provision of movement space for the lifting block 11, and the limit plate 23 facilitates the cooperation with the outer wall of the dust cover 8 to ensure the stability of the lifting block 11 during movement, reducing the shaking of the lifting block 11 caused by the rotation of the threaded rod 10.
[0035] It must be said that the surface of the T-shaped support 5 is movably mounted with a bearing 24; the bearing 24 helps to reduce the mutual wear between the T-shaped support 5 and the worktable 1 during rotation, and also ensures the smoothness of the rotation of the T-shaped support 5.
[0036] Working principle: When using this device, the drill bit substrate is clamped by the three-jaw chuck 6, and the dust cover 8 is pushed by the cylinder 7. After the dust cover 8 is resisted by the baffle 16, the cylinder 7 stops working. The stepper motor 9 drives the lifting block 11 through the threaded rod 10 to move the nozzle 12 to the starting point of the spraying on the surface of the drill bit substrate. The drive motor 3, in conjunction with the rotating shaft 4, drives the T-shaped support 5 to rotate. The T-shaped support 5 drives the three-jaw chuck 6 to rotate. The three-jaw chuck 6 drives the drill bit substrate to rotate. The coating material is released to the nozzle 12 through the telescopic hose 14 through the built-in drive component of the storage box 13. The nozzle 12 covers the surface of the drill bit substrate with the coating material. The height of the nozzle 12 is gradually raised by the stepper motor 9 in conjunction with the threaded rod 10. The PLC controls the drive motor 3 and the stepper motor 9 to complete the efficient coating coverage. After the coating material has fully covered the drill bit substrate, the dryer 18 is started by the control component 17. The dryer 18 heats the gas in the environment to accelerate the curing of the coating on the surface of the drill bit substrate.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency coating device for cemented carbide drill bits, comprising a worktable (1), characterized in that: An outer mounting plate (2) is fixedly installed on one side of the bottom of the workbench (1). A drive motor (3) is fixedly installed on the bottom of the outer mounting plate (2). A rotating shaft (4) is provided at the bottom of the drive motor (3). A T-shaped support seat (5) is threaded to the end of the rotating shaft (4). A three-jaw chuck (6) is fixedly installed on the top of the T-shaped support seat (5). A cylinder (7) is threaded to one side of the top of the workbench (1). A dust cover (8) is threaded to the output end of the cylinder (7). A stepper motor (9) is fixedly installed on one side of the top of the dust cover (8). A threaded rod (10) is provided at the bottom of the stepper motor (9). A lifting block (11) is movably installed on the surface of the threaded rod (10). A nozzle (12) is fixedly installed on the inner side of the lifting block (11).
2. The high-efficiency coating device for cemented carbide drill bits according to claim 1, characterized in that: A storage box (13) is fixedly installed on the top of the workbench (1) near the cylinder (7). The storage box (13) has a built-in drive assembly. A telescopic hose (14) is fixedly installed on the top of the storage box (13). The end of the telescopic hose (14) is fixedly connected to the outside of the lifting block (11).
3. The high-efficiency coating device for cemented carbide drill bits according to claim 1, characterized in that: The workbench (1) has sliding grooves (15) on both sides of the top, and a baffle (16) is fixedly installed on the other side of the top.
4. The high-efficiency coating device for cemented carbide drill bits according to claim 1, characterized in that: A control component (17) is fixedly installed on the outside of the dust cover (8) and on the side close to the cylinder (7). A dryer (18) is fixedly installed on the inside of the control component (17). A vacuum cleaner (19) is fixedly installed on the other side of the dust cover (8).
5. The high-efficiency coating device for cemented carbide drill bits according to claim 1, characterized in that: A sealing gasket (20) is fixedly installed at the bottom of the dust cover (8), and a T-shaped clip (21) is fixedly installed at the bottom of the sealing gasket (20).
6. The high-efficiency coating device for carbide drill bits according to claim 1, characterized in that: A lifting groove (22) is provided on the outer side of the dust cover (8) and on the side close to the stepper motor (9), and a limit plate (23) is fixedly installed on the outer side of the lifting block (11).
7. The high-efficiency coating device for carbide drill bits according to claim 1, characterized in that: The T-shaped support (5) has a bearing (24) movably mounted on its surface.
Citation Information
Patent Citations
Efficient coating device for hard alloy drill bit
CN215197730U