Planetary fixture for tool coating

CN224641517UActive Publication Date: 2026-08-18HUALU NANOTECHNOLOGY (HANGZHOU) CO LTD
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Patent Information

Application Number
CN202521989441.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-08-18
Estimated Expiration
2035-09-16

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于提供一种刀具涂层用行星式夹具,通过设置夹持机构,具体是使用人员转动旋钮,可带动螺纹杆、小锥齿轮转动,从而带动大锥齿轮绕固定杆转动,大锥齿轮转动时带动滑动轨道同步转动,使滑杆沿半弧形滑槽滑动,进而迫使滑动块在滑动轨道上移动,促使多个滑杆相互靠近并向刀具聚集,最终通过夹持板实现对刀具的夹持固定,操作更快捷,保障涂层质量,提高生产效率,解决了现有刀具涂层用行星式夹具大多使用螺栓将刀具固定在夹具的特定位置上,这种方式的操作较为繁琐,在安装和拆卸刀具时,需要反复拧紧和松开多个螺栓,耗费大量时间,降低了生产效率,并且,螺栓与刀具的接触部位容易产生应力集中,应力集中可能导致刀具出现裂纹或损坏的问题

Benefits of technology

本实用新型通过设置夹持机构,具体是使用人员转动旋钮,可带动螺纹杆、小锥齿轮转动,从而带动大锥齿轮绕固定杆转动,大锥齿轮转动时带动滑动轨道同步转动,使滑杆沿半弧形滑槽滑动,进而迫使滑动块在滑动轨道上移动,促使多个滑杆相互靠近并向刀具聚集,最终通过夹持板实现对刀具的夹持固定,操作更快捷,保障涂层质量,提高生产效率。

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Abstract

The utility model discloses a kind of tool coating with planetary fixture, it is related to tool fixture technical field.The utility model includes shell, the shell top is provided with three tools, further includes: clamping mechanism, the clamping mechanism is arranged at shell top, the clamping mechanism is used to clamp tool;Rotary mechanism, the rotary mechanism is arranged in shell interior, the rotary mechanism is used to drive tool to rotate.The utility model is by being arranged clamping mechanism, specifically is using personnel rotation knob, can drive threaded rod, bevel pinion rotation, to drive bevel gear around fixed rod rotation, bevel gear rotation drives sliding rail synchronous rotation, make slide bar along half-arc sliding slot sliding, to force sliding block to move on sliding rail, promote multiple slide bar mutually close and gather to tool, finally realize the clamping and fixing of tool by clamping plate, operation is more fast, guarantee coating quality, improve production efficiency.
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Description

Technical Field

[0001] This utility model belongs to the technical field of tool fixtures, and in particular relates to a planetary fixture for tool coating. Background Technology

[0002] In modern manufacturing, cutting tools are the core element of the cutting system, and their performance directly affects processing efficiency, accuracy, and product quality. With the development of manufacturing, coating technology has emerged and become a key means to improve the performance of cutting tools. In the process of coating cutting tools, the fixture is a key component that supports and fixes the cutting tool, and its performance plays a decisive role in the coating quality.

[0003] Existing planetary clamps for tool coating mostly use bolts to fix the tool in a specific position on the clamp. This method is cumbersome. When installing and removing the tool, it is necessary to repeatedly tighten and loosen multiple bolts, which consumes a lot of time and reduces production efficiency. In addition, stress concentration is prone to occur at the contact point between the bolt and the tool. Stress concentration may cause cracks or damage to the tool. Therefore, a new planetary clamp for tool coating is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a planetary clamp for tool coating. By setting up a clamping mechanism, specifically, the user rotates a knob, which drives a threaded rod and a small bevel gear to rotate, thereby driving a large bevel gear to rotate around a fixed rod. The rotation of the large bevel gear drives the sliding track to rotate synchronously, causing the sliding rod to slide along a semi-circular groove. This forces the sliding block to move on the sliding track, causing multiple sliding rods to move closer together and converge towards the tool. Finally, the clamping plate clamps and fixes the tool, making operation faster, ensuring coating quality, and improving production efficiency. This invention solves the problem that most existing planetary clamps for tool coating use bolts to fix the tool in a specific position on the clamp. This method is cumbersome, requiring repeated tightening and loosening of multiple bolts during tool installation and removal, consuming a lot of time, reducing production efficiency, and causing stress concentration at the contact points between the bolts and the tool, which may lead to cracks or damage to the tool.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a planetary clamp for tool coating, comprising a housing, three tools disposed on the top of the housing, and further comprising: A clamping mechanism is disposed on the top of the housing and is used to clamp the cutting tool; A rotating mechanism is disposed inside the housing and is used to drive the cutting tool to rotate. Furthermore, the clamping mechanism includes a fixing component disposed on the top of the housing. The fixing component is used to fix the tool. The fixing component includes three rotating shells, and a fixing rod is installed at the center of each of the three rotating shells.

[0006] Furthermore, the clamping mechanism includes a drive assembly disposed on the top of the housing, the drive assembly being used to drive the fixing assembly.

[0007] Furthermore, large bevel gears are installed on the outer surfaces of the three fixed rods, and several sliding rails are installed on the top of the three large bevel gears. The sliding rails are trapezoidal in shape, which perfectly matches the trapezoidal groove at the bottom of the sliding block. This effectively restricts the sliding direction of the sliding block and prevents it from shifting or falling off during the sliding process. At the same time, the trapezoidal structure can also increase the contact area between the sliding block and the rail, making the sliding smoother and more stable, reducing wear caused by excessive friction, and ensuring the accuracy and flexibility of the clamping action. All the parts connected inside the rotating shell are identical, and the sliding tracks are arranged in a trapezoidal shape.

[0008] Furthermore, each of the sliding rails is slidably connected to a sliding block, and each of the sliding blocks is fixedly connected to a sliding rod. Each of the sliding rods is fitted with a clamping plate on one side that is close to each other. The clamping plate is the part that directly contacts the tool. Its surface is usually specially treated with wear-resistant and non-slip materials or coatings, which can not only ensure the stable clamping of the tool, but also avoid scratches or indentations on the tool surface during the clamping process. Multiple clamping plates converge on the tool from different directions to form a uniform clamping force, so that the tool always maintains a stable posture during the rotation coating process, ensuring the uniformity of the coating. Among them, the bottom of several sliding blocks is provided with trapezoidal grooves, and the several sliding blocks slide on the top of several sliding tracks through the trapezoidal grooves.

[0009] Furthermore, the drive assembly includes three small bevel gears, which are respectively meshed with three large bevel gears. Each of the three small bevel gears has a threaded rod installed on the side away from the fixed rod, and the three threaded rods are threadedly connected to the housing. The small bevel gears are relatively long and have a large meshing surface with the large bevel gears. This design allows the small bevel gears to maintain a stable meshing state with the large bevel gears even when the threaded rods drive the small bevel gears to move slightly, ensuring the continuity and reliability of power transmission. The longer small bevel gears and larger meshing surface can also disperse the stress during the transmission process, reduce the wear of the gear teeth, extend the service life of the gears, and ensure the long-term stable operation of the drive assembly. The axial length of the small bevel gear is set to be greater than that of a conventional bevel gear, and the area of ​​the meshing region of the tooth surface of the large bevel gear is set to be greater than that of the meshing surface of a conventional bevel gear.

[0010] Furthermore, a knob is installed on the side of each of the three threaded rods away from the small bevel gear, and several sliding grooves are opened on the top of each of the three housings, and several sliding rods slide in several sliding grooves respectively; Among them, several of the sliding grooves are semi-circular, and the several sliding grooves limit the movement of several sliding rods.

[0011] Furthermore, the rotating mechanism includes a motor installed inside the housing. The output end of the motor is fixedly connected to a sun gear via a coupling. Three planetary gears are externally meshed with the sun gear. Gear rings are provided on the sides of the three planetary gears that are far apart from each other. Each gear ring meshes with one of the three planetary gears. A rotating rod is installed inside each of the three planetary gears. Driven by the sun gear, the planetary gears revolve around the sun gear and rotate along the gear rings. This combined motion is transmitted to the rotating housing through the internal rotating rods, thereby driving the cutting tool to achieve both revolution and rotation. The synchronous movement of the three planetary gears ensures the consistency of the movement of the three cutting tools, enabling multiple cutting tools to be processed under the same coating conditions, thus improving the uniformity of coating quality.

[0012] This utility model has the following beneficial effects: This utility model features a clamping mechanism. Specifically, when a user rotates a knob, the threaded rod and small bevel gear rotate, which in turn drives the large bevel gear to rotate around a fixed rod. As the large bevel gear rotates, the sliding track rotates synchronously, causing the slide bar to slide along the semi-circular groove. This forces the slide block to move on the sliding track, causing multiple slide bars to move closer together and converge towards the tool. Finally, the clamping plate clamps and fixes the tool, making operation faster, ensuring coating quality, and improving production efficiency.

[0013] This invention features a rotating mechanism. Specifically, a motor drives the sun gear to rotate, and three planetary gears meshing with the sun gear revolve around it and rotate on their own axis, thereby driving the rotating rod to rotate. This causes the three rotating shells to perform both revolution and rotation, ensuring that all parts of the tool, including complex cutting edges and grooves, are evenly exposed to the coating environment. This ensures consistent coating thickness and quality, avoids localized over-thickness, under-thickness, or missed areas, and significantly improves the stability of coating quality.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rotating rod structure of this utility model; Figure 3 This is a schematic diagram of the threaded rod structure of this utility model; Figure 4 This is a schematic diagram of the small bevel gear structure of this utility model; Figure 5 This utility model Figure 2 A magnified structural diagram of A in the middle; Figure 6 This is a schematic diagram of the rotating mechanism of this utility model. The attached diagram lists the components represented by each number as follows: 1. Housing; 111. Cutting tool; 2. Clamping mechanism; 21. Fixing assembly; 211. Rotating shell; 212. Fixing rod; 213. Large bevel gear; 214. Sliding rail; 215. Sliding block; 216. Slide rod; 217. Clamping plate; 22. Drive assembly; 221. Small bevel gear; 222. Threaded rod; 223. Knob; 224. Slide groove; 3. Rotating mechanism; 311. Motor; 312. Sun gear; 313. Planetary gear; 314. Gear ring; 315. Rotating rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1-6 As shown, this utility model is a planetary clamp for tool coating, including a housing 1, three tools 111 are disposed on the top of the housing 1, and also includes: Clamping mechanism 2 is disposed on the top of housing 1 and is used to clamp tool 111; Rotation mechanism 3 is located inside housing 1 and is used to drive the cutting tool 111 to rotate. The clamping mechanism 2 includes a fixing component 21, which is disposed on the top of the housing 1. The fixing component 21 is used to fix the tool 111. The fixing component 21 includes three rotating shells 211, and a fixing rod 212 is installed at the center of each of the three rotating shells 211.

[0019] The clamping mechanism 2 includes a drive component 22, which is disposed on the top of the housing 1 and is used to drive the fixing component 21.

[0020] Large bevel gears 213 are installed on the outer surfaces of the three fixed rods 212, and several sliding rails 214 are installed on the top of the three large bevel gears 213; the parts connected inside the rotating shell 211 are all the same, and the several sliding rails 214 are arranged in a trapezoidal shape.

[0021] Sliding blocks 215 are slidably connected to several sliding tracks 214, and sliding rods 216 are fixedly connected to the top of several sliding blocks 215. Clamping plates 217 are installed on the side of several sliding rods 216 that are close to each other. The bottom of several sliding blocks 215 is provided with trapezoidal sliding grooves, and several sliding blocks 215 slide on the top of several sliding tracks 214 through the trapezoidal sliding grooves.

[0022] The drive assembly 22 includes three small bevel gears 221, which are respectively meshed with three large bevel gears 213. Each of the three small bevel gears 221 has a threaded rod 222 installed on the side away from the fixed rod 212, and the three threaded rods 222 are threadedly connected to the housing 1. The axial length of the small bevel gears 221 is set to be greater than the axial length of a conventional bevel gear, and the meshing area of ​​the tooth surface of the large bevel gears 213 is set to be greater than the meshing surface of a conventional bevel gear.

[0023] A knob 223 is installed on the side of each of the three threaded rods 222 away from the small bevel gear 221. Several grooves 224 are opened on the top of each of the three housings 1. Several sliding rods 216 slide in the grooves 224 respectively. The grooves 224 are semi-circular and limit the movement of the sliding rods 216. Specifically, when the user turns the knob 223, the threaded rods 222 and the small bevel gear 221 will rotate, which will drive the large bevel gear 213 to rotate around the fixed rod 212. When the large bevel gear 213 rotates, it will drive the sliding track 214 to rotate synchronously, so that the sliding rods 216 slide along the semi-circular grooves 224, thereby forcing the sliding block 215 to move on the sliding track 214. This causes the multiple sliding rods 216 to move closer to each other and gather towards the tool 111. Finally, the tool 111 is clamped and fixed by the clamping plate 217, making the operation faster, ensuring coating quality, and improving production efficiency.

[0024] The rotating mechanism 3 includes a motor 311, which is installed inside the housing 1. The output end of the motor 311 is fixedly connected to a sun gear 312 via a coupling. Three planetary gears 313 are externally meshed with the sun gear 312. A gear ring 314 is provided on the side of the three planetary gears 313 that is far apart from each other. The gear ring 314 is meshed with each of the three planetary gears 313. A rotating rod 315 is installed inside each of the three planetary gears 313. Specifically, when the motor 311 is started, it drives the sun gear 312 to rotate. The three planetary gears 313 meshing with the sun gear then revolve around it and rotate along the gear ring 314, thereby driving the rotating rod 315 to rotate. This causes the three rotating housings 211 to perform a revolution and rotation motion, so that all parts of the tool, including complex cutting edges and grooves, are evenly exposed to the coating environment. This ensures that the coating thickness and quality are consistent, avoids local over-thickness, under-thickness, or missed coating, and greatly improves the stability of coating quality.

[0025] A specific application of this embodiment is as follows: In use, the user first places the cutter 111 into the slot at the center of the rotating housing 211 for initial positioning. After placement, the user holds the knob 223 and rotates it, causing the threaded rod 222 to rotate. Simultaneously, the threaded rod 222 drives the small bevel gear 221 to rotate. Since the threaded rod 222 is threadedly connected to the housing 1, when the threaded rod 222 drives the small bevel gear 221 to rotate, it also causes the small bevel gear 221 to move slightly. Furthermore, the small bevel gear 221 and the large bevel gear 213 are meshed. When the small bevel gear... When 221 rotates, it drives the large bevel gear 213 to rotate on the outer surface of the fixed rod 212. Since the small bevel gear 221 is relatively long and can only move partially, it can also mesh with the large bevel gear 213 during its movement. When the large bevel gear 213 rotates, it drives several sliding tracks 214 to rotate. Because the slide rod 216 slides within the slide groove 224, which is semi-circular, and the sliding block 215 fixed to the slide rod 216 slides on the sliding track 214, when the sliding track 214... As the large bevel gear 213 rotates, the slide rod 216 is compressed along the semi-circular shape of the slide groove 224, forcing the slide block 215 to slide on the slide rail 214. This causes several slide rods 216 to move closer together and converge towards the tool 111. At this time, several clamping plates 217 clamp and fix the tool 111, improving the overall performance of the tool and extending its service life. Once the tool 111 is fixed, the user can start the motor 311 to drive the sun gear 312 to rotate. Since all three planetary gears 313 mesh with the sun gear 312... The connection is such that when the sun gear 312 rotates, the three planetary gears 313 will revolve around the sun gear 312, and at the same time, the three planetary gears 313 will rotate along the gear ring 314, which in turn will drive the rotating rod 315 to rotate. At the same time, the three rotating rods 315 will drive the three rotating shells 211 to revolve and rotate, so that all parts of the tool, including complex cutting edges and grooves, can be evenly exposed to the coating material deposition environment, avoiding local coatings that are too thick or too thin, or even missing coatings, and ensuring that the tool surface obtains a coating with consistent thickness and quality.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A planetary fixture for tool coating, comprising a housing (1) having three tools (111) disposed on the top of the housing (1), characterized in that, Also includes: Clamping mechanism (2), which is disposed on the top of housing (1), is used to clamp the cutting tool (111). A rotating mechanism (3) is disposed inside the housing (1) and is used to drive the cutting tool (111) to rotate. The clamping mechanism (2) includes a fixing component (21), which is located on the top of the housing (1). The fixing component (21) is used to fix the tool (111). The fixing component (21) includes three rotating shells (211), and a fixing rod (212) is installed at the center of each of the three rotating shells (211).

2. The planetary fixture for tool coating according to claim 1, characterized in that, The clamping mechanism (2) includes a drive assembly (22) disposed on the top of the housing (1) and is used to drive the fixing assembly (21).

3. A planetary clamp for tool coating according to claim 2, characterized in that, Large bevel gears (213) are installed on the outer surfaces of the three fixed rods (212), and several sliding rails (214) are installed on the top of the three large bevel gears (213). The parts connected inside the rotating shell (211) are all the same, and the sliding rails (214) are arranged in a trapezoidal shape.

4. A planetary clamp for tool coating according to claim 3, characterized in that, Each of the sliding rails (214) is slidably connected to a sliding block (215), and each of the sliding blocks (215) is fixedly connected to a sliding rod (216). Each of the sliding rods (216) is equipped with a clamping plate (217) on one side that is close to each other. Among them, the bottom of several sliding blocks (215) is provided with trapezoidal grooves, and the several sliding blocks (215) slide on the top of several sliding tracks (214) through the trapezoidal grooves.

5. A planetary clamp for tool coating according to claim 4, characterized in that, The drive assembly (22) includes three small bevel gears (221), which are respectively meshed with three large bevel gears (213). Each of the three small bevel gears (221) has a threaded rod (222) installed on the side away from the fixed rod (212), and the three threaded rods (222) are threadedly connected to the housing (1). The axial length of the small bevel gear (221) is set to be greater than that of a conventional bevel gear, and the area of ​​the tooth surface meshing region of the large bevel gear (213) is set to be greater than that of the meshing surface of a conventional bevel gear.

6. A planetary clamp for tool coating according to claim 5, characterized in that, A knob (223) is installed on the side of each of the three threaded rods (222) away from the small bevel gear (221). Several grooves (224) are opened on the top of each of the three housings (1). Several sliding rods (216) slide in several grooves (224). Among them, several of the slide grooves (224) are semi-arc-shaped, and several of the slide grooves (224) limit the movement of several slide rods (216).

7. A planetary clamp for tool coating according to claim 1, characterized in that, The rotating mechanism (3) includes a motor (311), which is installed inside the housing (1). The output end of the motor (311) is fixedly connected to a sun gear (312) via a coupling. Three planetary gears (313) are meshed with the outside of the sun gear (312). A gear ring (314) is provided on the side of the three planetary gears (313) that is far away from each other. The gear ring (314) is meshed with the three planetary gears (313). A rotating rod (315) is installed inside each of the three planetary gears (313).