An etching mechanism for gear cutter coating

By adopting a liftable structure in the gear cutting tool etching mechanism, the support needle bar supports the bottom of the tool and descends during immersion, solving the problem of incomplete etching of gear cutting tools and achieving comprehensive etching and improved coating adhesion.

CN224395028UActive Publication Date: 2026-06-23SHANDONG ZHONGRUITE NANO TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ZHONGRUITE NANO TECH CO LTD
Filing Date
2025-08-08
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In the current gear cutting tool process, the bottom and inner ring do not make sufficient contact with the reagent during etching, resulting in incomplete etching and affecting the adhesion of the coating.

Method used

It adopts a liftable structure, with the bottom of the cutter supported by a support needle bar. The contact area is small. During immersion, the needle bar is lowered to support the cutter on the support bar. Repeated operation ensures that all parts are in contact with the reagent, improving the overall etching.

Benefits of technology

It achieves full etching of gear cutting tools, improves the adhesion between the coating and the tool surface, and increases processing efficiency and tool life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224395028U_ABST
    Figure CN224395028U_ABST
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Abstract

The utility model discloses a kind of etching mechanisms for gear cutter coating, including gear cutter etching box main body, the inner side surface of gear cutter etching box main body is slidably provided with lifting support platform, the upper surface of lifting support platform is evenly densely provided with support needle bar, the upper surface of one side of lifting support platform is fixedly connected with arcuate support frame, the lower end side surface of gear cutter etching box main body is fixed with support platform, the upper surface of support platform is fixedly connected with motor, the outer surface of the driving shaft of motor is connected in the inner side surface of arcuate support frame by screwing, the inner side surface of gear cutter etching box main body is fixedly connected with support plate, it is supported in the bottom of cutter by support needle bar, contact area is small, and support needle bar can be lowered when soaking, so that its cutter is supported on the surface of support strip, so that the ground not contacted with reagent is effectively contacted, repeatedly, ensure that all parts of bottom contact reagent etching, improve etching comprehensiveness.
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Description

Technical Field

[0001] This utility model relates to the field of etching mechanisms for gear cutting tool coatings, and more specifically, to an etching mechanism for gear cutting tool coatings. Background Technology

[0002] To reduce wear on gear cutting tools and improve machining efficiency, a diamond coating needs to be deposited on the tool surface. Before depositing the diamond coating, the Co on the tool surface must be removed (pretreatment) to ensure good coating adhesion. Currently, the method for removing Co from the tool surface typically involves first immersing and etching the surface with Murakami reagent (K3[Fe(CN)6]+KOH), followed by washing away the Co with acid under ultrasonic vibration. However, in existing gear cutting tool etching processes, the tools are neatly stacked and immersed in the reagent. This results in insufficient contact between the bottom and inner ring of the gear cutting tool and the reagent, thus preventing effective etching.

[0003] In existing technology, such as the patent announcement number CN209778999U, this utility model discloses an etching device for gear cutting tool coatings: It includes a gear cutting tool etching box body and a tool fixing structure, the tool fixing structure being disposed inside the gear cutting tool etching box body; the tool fixing structure includes a guide sleeve and support columns, the guide sleeve and support columns being vertically disposed on a support disk, and a plurality of support columns being circumferentially disposed outside the guide sleeve; a plurality of limiting columns are disposed on the guide sleeve, the fixing ends of the plurality of limiting columns being circumferentially disposed on the outer wall of the guide sleeve, and the limiting ends of the plurality of limiting columns being horizontally outwardly disposed relative to the guide sleeve. This device supports the bottom of the gear cutting tool through the support columns, and the limiting columns engage the inner ring of the gear cutting tool, thus fixing the gear cutting tool. This allows both the bottom and the inner ring of the gear cutting tool to fully contact the reagent for etching.

[0004] The inner ring is fixed by the limiting post, so the inner ring is blocked and cannot be immersed in the reagent. Therefore, it cannot be fully immersed, and the etching of the tool in contact with the reagent is not comprehensive. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an etching mechanism for gear cutting tool coatings. It features a liftable structure that supports the bottom of the tool via a support needle rod. This design minimizes the contact area, allowing for effective immersion. During immersion, the support needle rod can be lowered, allowing the tool to rest on the surface of the support strip. This ensures that the previously untouched surface effectively contacts the reagent. This process is repeated to guarantee that all parts of the bottom are etched with the reagent, improving the overall etching coverage.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] An etching mechanism for gear cutting tool coating includes a gear cutting tool etching box body. A lifting support platform is slidably disposed on the inner surface of the gear cutting tool etching box body. Support needle rods are evenly and densely distributed on the upper surface of the lifting support platform. An arched support frame is fixedly connected to one side of the upper surface of the lifting support platform. A support platform is fixedly fixed to the lower side of the gear cutting tool etching box body. A motor is fixedly connected to the upper surface of the support platform. The outer surface of the drive shaft of the motor is threadedly connected to the inner surface of the arched support frame. A support plate is fixedly connected to the inner surface of the gear cutting tool etching box body. A support strip is fixedly connected to the outer surface of the support plate. The support strip is disposed in the gap groove between the support needle rods and has a liftable structure. It is supported on the bottom of the tool by the support needle rods. The contact area is small, which can effectively immerse the tool. During immersion, the support needle rods can be lowered so that the tool is supported on the surface of the support strip. In this way, the uncontacted ground effectively contacts the reagent. This process is repeated to ensure that all parts of the bottom are in contact with the reagent for etching, thereby improving the overall etching coverage.

[0008] Furthermore, a bend support section is provided on one side of the lower end of the arched support frame. The surface of the bend support section is provided with a threaded hole, and the drive shaft of the motor is threadedly connected to the inner surface of the bend support section.

[0009] Furthermore, the support plate is fixedly connected to the lower inner surface of the gear cutter etching box body by bolts.

[0010] Furthermore, the outer side of the lifting support platform is provided with a recessed guide groove, which is distributed on the upper, lower and right sides of the lifting support platform.

[0011] Furthermore, the support needle rod adopts a circular needle rod structure, and its support needle rods are arranged in a uniform array on the upper surface of the lifting support platform.

[0012] Furthermore, the support strips are evenly distributed and fixed on the outer surface of the support plate.

[0013] Furthermore, the gear tool etching box body has an outlet port on its side, which is located on the lower outer surface of the gear tool etching box body.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) A liftable structure is set up, which is supported at the bottom of the tool by the support needle rod. The contact area is small, which can effectively immerse the tool. The support needle rod can be lowered during immersion so that the tool can be supported on the surface of the support strip. In this way, the uncontacted ground can effectively contact the reagent. This process is repeated to ensure that all parts of the bottom are in contact with the reagent for etching, thus improving the overall etching coverage. Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a second schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a first cross-sectional view of the overall structure of this utility model;

[0019] Figure 4 This is a second cross-sectional view of the overall structure of this utility model;

[0020] Figure 5 This is the third cross-sectional view of the overall structure of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Gear tool etching box body, 2. Lifting support platform, 3. Support needle rod, 4. Arch support frame, 5. Support platform, 6. Motor, 60. Drive shaft, 7. Folded support section, 8. Support plate, 9. Support strip, 60. Drive shaft, 10. Bolt, 20. Recessed guide groove. Detailed Implementation

[0023] 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 protection scope of the present utility model.

[0024] Example 1

[0025] Please see Figure 1-5An etching mechanism for gear cutting tool coating includes a gear cutting tool etching box body 1. A lifting support platform 2 is slidably disposed on the inner surface of the gear cutting tool etching box body 1. Support pins 3 are evenly and densely distributed on the upper surface of the lifting support platform 2. An arched support frame 4 is fixedly connected to one side of the upper surface of the lifting support platform 2. A support platform 5 is fixedly fixed to the lower side of the gear cutting tool etching box body 1. A motor 6 is fixedly connected to the upper surface of the support platform 5. The outer surface of the drive shaft 60 of the motor 6 is threadedly connected to the inner surface of the arched support frame 4. A support plate 8 is fixedly connected to the inner surface of the main body 1 of the wheel tool etching box, and a support strip 9 is fixedly connected to the outer surface of the support plate 8. The support strip 9 is set in the gap groove between the support needle rods 3. It is equipped with a liftable structure, which is supported on the bottom of the tool by the support needle rod. The contact area is small, which can effectively immerse the tool. During immersion, the support needle rod can be lowered so that the tool is supported on the surface of the support strip. In this way, the uncontacted ground effectively contacts the reagent. This process is repeated to ensure that all parts of the bottom are in contact with the reagent for etching, thereby improving the overall etching coverage.

[0026] An angled support section 7 is provided on one side of the lower end of the arched support frame 4. The surface of the angled support section 7 has threaded holes, and the drive shaft 60 of the motor 6 is threadedly connected to the inner surface of the angled support section 7. Its drive installation is convenient. In use, the motor 6 drives the drive shaft 60 to rotate within the angled support section 7, which can move the arched support frame 4 up and down. The motor 6 is a reversible motor, which facilitates control of lifting and lowering (motor forward and reverse rotation represent clockwise and counterclockwise rotation. Clockwise rotation is forward rotation, and counterclockwise rotation is reverse rotation. According to the forward and reverse control circuit diagram and its principle analysis, to achieve forward and reverse rotation of the motor, simply swap any two of the three-phase power supply lines connected to the motor; this is existing technology).

[0027] The support plate 8 is fixedly connected to the lower inner surface of the gear tool etching box body 1 by bolts 10; it is convenient to install and disassemble.

[0028] The outer side of the lifting support platform 2 is provided with a recessed guide groove 20, which is distributed on the upper, lower and right sides of the lifting support platform 2. When the lifting support platform 2 moves upward, the liquid reagent falls along the recessed guide groove 20 to facilitate flow.

[0029] The support needle bar 3 adopts a circular needle bar structure, and its support needle bars 3 are evenly arrayed and densely arranged on the upper surface of the lifting support platform 2; they are evenly and densely arranged to facilitate stable support of the cutting tool.

[0030] The support strips 9 are evenly distributed and fixed on the outer surface of the support plate 8. The distribution is uniform, and when the support needle rod 3 descends, the cutter on its surface can be supported on the surface of the support strips 9, while other positions can fully contact the reagent and the etching is complete.

[0031] The gear tool etching box body 1 has an outlet port on its side, which is located on the lower outer surface of the gear tool etching box body 1; this facilitates the discharge of reagents.

[0032] In use, a lifting support platform 2 is slidably mounted on the inner surface of the gear-cutting etching box body 1. Support needle rods 3 are evenly and densely distributed on the upper surface of the lifting support platform 2. These support needle rods 3 are circular and evenly arrayed on the upper surface of the lifting support platform 2, ensuring stable support of the cutting tool. The cutting tool is placed on the surface of the support needle rods 3, which has a small support area, allowing for complete immersion etching. Support strips 9 are fixedly connected to the outer surface of the support plate 8, positioned within the gaps between the support needle rods 3. These support strips 9 are evenly distributed and fixed to the outer surface of the support plate 8. When the support needle rods 3 descend, the cutting tool on their surface can be supported on the surface of the support strips 9, while other positions can fully contact the reagent, ensuring complete etching. Repeated support of the cutting tool by the support needle rods 3 and the support strips 9 ensures that the bottom of the cutting tool can be completely immersed in the etching process, improving overall etching performance.

[0033] During lifting and lowering, a motor 6 is fixedly connected to the upper surface of the support platform 5. The outer surface of the drive shaft 60 of the motor 6 is threadedly connected to the inner surface of the arched support frame 4. A bend support section 7 is provided on one side of the lower end of the arched support frame 4. The surface of the bend support section 7 is provided with threaded holes, and the drive shaft 60 of the motor 6 is threadedly connected to the inner surface of the bend support section 7. The drive installation is convenient. In use, the motor 6 drives the drive shaft 60 to rotate inside the bend support section 7, which can drive the arched support frame 4 to move up and down. The motor 6 is a forward and reverse motor, which is convenient for controlling the lifting and lowering.

Claims

1. An etching mechanism for gear cutting tool coating, comprising a gear cutting tool etching box body (1), characterized in that: A lifting support platform (2) is slidably provided on the inner surface of the gear cutting tool etching box body (1). Support needle rods (3) are evenly and densely distributed on the upper surface of the lifting support platform (2). An arched support frame (4) is fixedly connected to one side of the upper surface of the lifting support platform (2). A support platform (5) is fixedly provided on the lower side of the gear cutting tool etching box body (1). A motor (6) is fixedly connected to the upper surface of the support platform (5). The outer surface of the drive shaft (60) of the motor (6) is threadedly connected to the inner surface of the arched support frame (4). A support plate (8) is fixedly connected to the inner surface of the gear cutting tool etching box body (1). A support strip (9) is fixedly connected to the outer surface of the support plate (8). The support strip (9) is set in the gap groove between the support needle rods (3).

2. The etching mechanism for gear cutting tool coating according to claim 1, characterized in that: The lower end of the arched support frame (4) is provided with a bend support section (7). The surface of the bend support section (7) is provided with a threaded hole, and the drive shaft (60) of the motor (6) is threadedly connected to the inner surface of the bend support section (7).

3. The etching mechanism for gear cutting tool coating according to claim 1, characterized in that: The support plate (8) is fixedly connected to the inner surface of the lower end of the gear cutter etching box body (1) by bolts (10).

4. The etching mechanism for gear cutting tool coating according to claim 1, characterized in that: The outer side of the lifting support platform (2) is provided with a recessed guide groove (20), which is distributed on the upper and lower sides and the right side of the lifting support platform (2).

5. The etching mechanism for gear cutting tool coating according to claim 1, characterized in that: The support needle rod (3) adopts a circular needle rod structure, and its support needle rod (3) is arranged in a uniform array on the upper surface of the lifting support platform (2).

6. The etching mechanism for gear cutting tool coating according to claim 1, characterized in that: The support strips (9) are evenly distributed and fixed on the outer surface of the support plate (8).

7. The etching mechanism for gear cutting tool coating according to claim 1, characterized in that: The gear tool etching box body (1) is provided with an outlet on its side, which is located on the lower surface of the outer end of the gear tool etching box body (1).