A hard metal gear shaping cutter provided with a composite coating heat sink substrate

Abstract

The utility model relates to the technical field of gear shaping cutter and discloses a hard alloy gear shaping cutter with a composite coating heat dissipation base body, which comprises a gear shaping cutter, a main shaft, a fixing assembly, a limiting assembly, a handle and a third connecting column, the fixing assembly is arranged above the gear shaping cutter, the main shaft is installed above the fixing assembly, and the limiting assembly is arranged on both sides of the gear shaping cutter. The utility model pushes the limiting rod upwards, the limiting rod and the second connecting rod are fixedly connected through the pivot, so the connecting rod is driven to move upwards, and then the reset spring is compressed, at this time, the first connecting rod is driven to move upwards, and then the limiting column is driven to move upwards, the gear shaping cutter and the second connecting column are screw-connected, so the gear shaping cutter can be taken off by rotating it, the replacement part is screw-connected to the outer wall of the second connecting column, the limiting rod is pushed to the left, the force generated by the deformation of the reset spring pushes the second connecting rod downwards to the hole in the bottom of the gear shaping cutter, and at this time, the gear shaping cutter is replaced.

Description

Technical Field

[0001] This utility model relates to the field of gear shaping cutter technology, specifically a cemented carbide gear shaping cutter with a composite coating heat dissipation substrate. Background Technology

[0002] A carbide gear shaper with a composite-coated heat dissipation substrate is a gear machining tool in which a composite coating is applied to the carbide gear shaper substrate to improve the tool's heat dissipation performance and other comprehensive properties. Some components of the composite coating have high thermal conductivity, enabling rapid conduction of heat generated during cutting and preventing localized overheating of the tool. For example, coatings containing cermets or carbon nanotubes can effectively transfer heat from high-temperature areas such as the tool tip to the tool substrate, and then dissipate it into the surrounding environment, thereby reducing the tool's operating temperature. A gear shaper is a tool used to machine gear teeth, primarily through relative reciprocating motion with the workpiece and circumferential feed motion, cutting the required tooth profile onto the workpiece. It is widely used in gear machining, especially suitable for machining internal gears, multi-gear gears, racks, and gears with special tooth profiles.

[0003] The existing publicly available technical solution CN212823166U discloses a carbide cutting tool for a gear shaping machine that is easy to assemble and disassemble. It includes a gear shaping cutter. A bottom cover plate is mounted on the bottom end of the cutter via multiple first fixing bolts. A spindle is mounted on the top end of the bottom cover plate via second fixing bolts. A fixing member, which is inserted and connected to the spindle, is mounted on the top end of the cutter via multiple third fixing bolts. The fixing member is fixed to the spindle via multiple fourth fixing bolts. The advantages of this invention are: the fixing block mounted on one end of the shaft and the groove inside the cutter body facilitate the connection between the spindle and the cutter through a snap-fit ​​mechanism; the bottom cover plate mounted on the bottom end of the cutter helps protect the spindle, reduces its wear risk, and saves material costs; the fixing member mounted on the top end of the cutter, through a second fixing disc inserted into the groove of the cutter body, helps reduce friction between the spindle and the cutter.

[0004] However, when implementing the existing technical solution, for situations requiring frequent replacement, the solution cannot achieve quick and simple replacement of the gear shaping cutter, thus affecting cutting efficiency. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has limitations in handling situations requiring frequent replacements, this solution cannot provide a quick and easy replacement of the gear shaping cutter, thus affecting cutting efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A cemented carbide gear shaper with a composite coating heat dissipation substrate includes a gear shaper, a spindle, a fixing assembly, a limiting assembly, a handle, and a third connecting post. The fixing component is positioned above the gear cutter; The spindle is mounted above the fixed assembly; The limiting components are disposed on both sides of the gear hobbing cutter; The grip is mounted above the limiting component; The third connecting post is welded to the surface of the spindle.

[0008] As a further embodiment of this utility model: the fixing component includes: a second connecting post and a limiting post; the second connecting post is threadedly connected to the inner wall of the gear cutter; and the limiting post is installed inside the second connecting post.

[0009] As a further embodiment of this utility model, the fixing component further includes: a first connecting rod and a first connecting post; a first connecting rod welded to one side of the limiting post; and a first connecting post slidably connected inside the first connecting rod.

[0010] As a further embodiment of this utility model, the fixing component further includes: a second connecting rod and a return spring; a second connecting rod welded to the upper end of the first connecting rod; and a return spring installed on the upper end of the second connecting rod.

[0011] As a further improvement of this utility model, the fixing component further includes: a limiting rod; a limiting rod connected to one side of the second connecting rod via a rotating shaft; the other end of the limiting rod can be locked into a slot for fixation.

[0012] As a further embodiment of this utility model: the limiting component includes: a fixing block and a push rod; a fixing block slidably connected inside the third connecting column; and a push rod welded to the upper end of the fixing block.

[0013] As a further embodiment of this utility model, the limiting component further includes: a limiting plate and a lead screw; limiting plates disposed on the left and right sides of the third connecting column; and a lead screw threadedly connected to the inside of the limiting plate.

[0014] As a further embodiment of this utility model, the limiting component further includes: a connecting block and a limiting ring; a connecting block welded to the upper end of the lead screw; and a limiting ring welded to the lower end of the limiting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model involves pushing the limiting rod upwards. Since the limiting rod and the second connecting rod are fixedly connected by a rotating shaft, the connecting rod moves upwards, thereby compressing the return spring. At this time, the first connecting rod moves upwards, which in turn moves the limiting post upwards. A hole is opened at the bottom of the gear cutter corresponding to the position of the limiting post. When the limiting post moves upwards and disengages from the hole, the limiting rod is pushed to the right into the slot. Since the gear cutter and the second connecting post are connected by a thread, the gear cutter can be removed by rotating it. The replacement part is threaded to the outer wall of the second connecting post. The limiting rod is pushed to the left, and the force generated by the deformation of the return spring pushes the second connecting rod down until the limiting post is engaged in the hole opened at the bottom of the gear cutter. At this time, the gear cutter replacement is completed.

[0016] 2. This utility model rotates the handle, which in turn drives the lead screw to rotate, which in turn drives the limit plate connected to it to move down, which in turn drives the limit ring to move down. When it moves to a suitable depth, it stops. Pushing the push rod will lock the fixing block into the slot opened in the limit plate, thus fixing it.

[0017] 3. This utility model uses a multi-layer composite coating on the surface of the gear hobbing cutter. The bottom layer is made of TiAlN, the middle layer is made of DLC-doped high thermal conductivity metal, and the outer layer is made of AlCrSiN. Heat is quickly transferred through the coating via the "metal thermal conduction path" of the middle DLC-doped layer and then transferred to the substrate surface through the bottom TiAlN transition layer, thereby quickly releasing the heat generated by the gear hobbing cutter during cutting. Attached Figure Description

[0018] Figure 1 This is a front view of the cemented carbide gear cutter with a composite coating heat dissipation substrate according to this utility model; Figure 2 This is a partial cross-sectional view of the fixing component of this utility model; Figure 3 This is a partial cross-sectional view of the limiting component of this utility model; Figure 4 This is a bottom view of a cemented carbide gear cutter with a composite coating heat dissipation substrate according to the present invention; Figure 5 This is a top view of a cemented carbide gear cutter with a composite coating heat dissipation substrate according to this utility model.

[0019] In the diagram: 1. Gear shaper; 2. Spindle; 3. Fixing assembly; 301. Limiting post; 302. First connecting rod; 303. First connecting post; 304. Second connecting rod; 305. Return spring; 306. Limiting rod; 307. Second connecting post; 4. Limiting assembly; 401. Limiting ring; 402. Limiting plate; 403. Fixing block; 404. Push rod; 405. Lead screw; 406. Connecting block; 5. Handle; 6. Third connecting post. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments. Example 1

[0023] Please see Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a cemented carbide gear shaping cutter with a composite coating heat dissipation substrate, including a gear shaping cutter 1, a spindle 2, a fixing component 3, a limiting component 4, a handle 5, and a third connecting post 6; The fixing component 3 is positioned above the gear cutter 1; The spindle 2 is mounted above the fixed assembly 3; Limiting components 4 are disposed on both sides of the gear cutter 1; The grip 5 is mounted above the limiting component 4; The third connecting post 6 is welded to the surface of the spindle 2.

[0024] Specifically, the fixing component 3 includes: a second connecting post 307 and a limiting post 301; the second connecting post 307 is threadedly connected to the inner wall of the gear cutter 1; and the limiting post 301 is installed inside the second connecting post 307.

[0025] Furthermore, the limiting post 301 can be inserted into the hole at the bottom of the gear cutter 1 to fix the gear cutter 1.

[0026] Specifically, the fixing component 3 also includes: a first connecting rod 302 and a first connecting post 303; the first connecting rod 302 welded to one side of the limiting post 301; and the first connecting post 303 slidably connected inside the first connecting rod 302.

[0027] Furthermore, when the first connecting rod 302 moves upward, the first connecting post 303 restricts its vertical movement.

[0028] Specifically, the fixing component 3 also includes: a second connecting rod 304 and a return spring 305; a second connecting rod 304 welded to the upper end of the first connecting rod 302; and a return spring 305 installed on the upper end of the second connecting rod 304.

[0029] Furthermore, the second connecting rod 304 moves upward, thereby compressing the return spring 305. The force generated by the deformation of the return spring 305 pushes the second connecting rod 304 downward.

[0030] When replacing the gear hobbing cutter 1, first push the limiting rod 306 upward. Since the limiting rod 306 and the second connecting rod 304 are fixedly connected by a rotating shaft, the second connecting rod 304 is moved upward, thereby compressing the return spring 305. At this time, the first connecting rod 302 is moved upward, which in turn moves the limiting post 301 upward. The bottom of the gear hobbing cutter 1 has a hole corresponding to the position of the limiting post 301. When the limiting post 301 moves upward and disengages from the hole, push the limiting rod 306 to the right into the slot. Since the gear hobbing cutter 1 and the second connecting post 307 are connected by a thread, the gear hobbing cutter 1 can be removed by rotating it. Thread the replacement part to the outer wall of the second connecting post 307, push the limiting rod 306 to the left, and the force generated by the deformation of the return spring 305 will push the second connecting rod 304 downward until the limiting post 301 is inserted into the hole at the bottom of the gear hobbing cutter 1. At this time, the replacement of the gear hobbing cutter 1 is completed.

[0031] In summary, this utility model pushes the limiting rod 306 upward. Since the limiting rod 306 and the second connecting rod 304 are fixedly connected by a rotating shaft, the second connecting rod 304 moves upward, thereby compressing the return spring 305. At this time, the first connecting rod 302 moves upward, which in turn moves the limiting post 301 upward. The bottom of the gear cutter 1 has a hole corresponding to the position of the limiting post 301. When the limiting post 301 moves upward and disengages from the hole, the limiting rod 306 is pushed to the right into the slot. Since the gear cutter 1 and the second connecting post 307 are connected by a thread, the gear cutter 1 can be removed by rotating it. The replacement part is threaded to the outer wall of the second connecting post 307. The limiting rod 306 is pushed to the left. The force generated by the deformation of the return spring 305 pushes the second connecting rod 304 downward until the limiting post 301 is engaged in the hole at the bottom of the gear cutter 1. At this time, the replacement of the gear cutter 1 is completed. Example 2

[0032] Please see Figures 1-5 This is the second embodiment of the present utility model.

[0033] Specifically, the fixing component 3 also includes: a limiting rod 306; a limiting rod 306 connected to one side of the second connecting rod 304 via a rotating shaft; the other end of the limiting rod 306 can be locked into a slot for fixation.

[0034] Furthermore, the limit rod 306 is pushed upward. Since the limit rod 306 is fixedly connected to the second connecting rod 304 through a rotating shaft, the second connecting rod 304 is moved upward.

[0035] Specifically, the limiting component 4 includes: a fixing block 403 and a push rod 404; the fixing block 403 is slidably connected inside the third connecting post 6; and the push rod 404 is welded to the upper end of the fixing block 403.

[0036] Furthermore, by pushing the push rod 404, the fixing block 403 is inserted into the slot opened in the limiting plate 402, and thus fixed.

[0037] Specifically, the limiting component 4 also includes: a limiting plate 402 and a lead screw 405; the limiting plate 402 is disposed on the left and right sides of the third connecting post 6; and the lead screw 405 is threadedly connected to the inside of the limiting plate 402.

[0038] Furthermore, the lead screw 405 passes through the upper and lower ends of the limiting plate 402.

[0039] Specifically, the limiting component 4 also includes: a connecting block 406 and a limiting ring 401; the connecting block 406 is welded to the upper end of the lead screw 405; and the limiting ring 401 is welded to the lower end of the limiting plate 402.

[0040] Furthermore, the limiting ring 401 surrounds the gear hobbing cutter 1.

[0041] When replacing the gear hobbing cutter 1, first push the limiting rod 306 upwards. Since the limiting rod 306 is fixedly connected to the second connecting rod 304 via a rotating shaft, it causes the second connecting rod 304 to move upwards, thereby compressing the return spring 305. This causes the first connecting rod 302 to move upwards, which in turn causes the limiting post 301 to move upwards. The bottom of the gear hobbing cutter 1 has a hole corresponding to the position of the limiting post 301. When the limiting post 301 moves upwards and disengages from the hole, push the limiting rod 306 to the right into the slot. Since the gear hobbing cutter 1 and the second connecting post 307 are connected by a thread, rotating the gear hobbing cutter 1 will remove it. Thread the replacement part to the outer wall of the second connecting post 307 and push the limiting rod 306 to the left. 06. The force generated by the deformation of the return spring 305 pushes the second connecting rod 304 down to the limiting post 301, which is then engaged in the hole at the bottom of the gear shaping cutter 1. At this point, the gear shaping cutter 1 is replaced. When it is necessary to limit the cutting depth of the gear shaping cutter 1, rotate the handle 5, which in turn drives the lead screw 405 to rotate, thereby driving the limiting plate 402 connected to it to move down, and then driving the limiting ring 401 to move down. When it moves to the appropriate depth, stop and engage the fixing block 403 in the slot opened in the limiting plate 402 to fix it. The surface of the gear shaping cutter 1 is coated with a multi-layer composite coating. The bottom layer is made of TiAlN, the middle layer is made of DLC-doped high thermal conductivity metal, and the outer layer is made of AlCrSiN. Heat is quickly passed through the coating through the "metal thermal conduction path" of the middle DLC-doped layer and transferred to the substrate surface through the bottom TiAlN transition layer, thereby quickly releasing the heat generated by the cutting of the gear shaping cutter 1.

[0042] In summary, this utility model rotates the handle 5, which in turn drives the lead screw 405 to rotate, thereby causing the limiting plate 402, which is threadedly connected to it, to move downwards, and then causes the limiting ring 401 to move downwards. When it moves to a suitable depth, it stops, and pushes the push rod 404 to insert the fixing block 403 into the slot opened in the limiting plate 402, thus fixing it.

[0043] This invention utilizes a multi-layer composite coating on the surface of the gear hobbing cutter 1. The bottom layer is made of TiAlN, the middle layer is made of DLC-doped high thermal conductivity metal, and the outer layer is made of AlCrSiN. Heat is rapidly transferred through the coating via the "metal thermal conduction path" of the middle DLC-doped layer and then through the bottom TiAlN transition layer to the substrate surface, thereby rapidly releasing the heat generated by the cutting of the gear hobbing cutter 1.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cemented carbide gear cutter with a composite coating heat dissipation substrate, characterized in that: include: Gear cutter (1), spindle (2), fixing assembly (3), limiting assembly (4), handle (5) and third connecting post (6); The fixing component (3) is positioned above the gear cutter (1); The spindle (2) is mounted above the fixing assembly (3); The limiting component (4) is disposed on both sides of the gear cutter (1); The grip (5) is mounted above the limiting component (4); The third connecting post (6) is welded to the surface of the main shaft (2).

2. The cemented carbide gear cutter with a composite coating heat dissipation substrate according to claim 1, characterized in that: The fixing component (3) includes: a second connecting post (307) and a limiting post (301); the second connecting post (307) is threaded to the inner wall of the gear cutter (1); and the limiting post (301) is installed inside the second connecting post (307).

3. A cemented carbide gear cutter with a composite coating heat dissipation substrate according to claim 2, characterized in that: The fixing component (3) further includes: a first connecting rod (302) and a first connecting post (303); the first connecting rod (302) is welded to one side of the limiting post (301); and the first connecting post (303) is slidably connected inside the first connecting rod (302).

4. A cemented carbide gear cutter with a composite coating heat dissipation substrate according to claim 3, characterized in that: The fixing component (3) further includes: a second connecting rod (304) and a return spring (305); the second connecting rod (304) is welded to the upper end of the first connecting rod (302); and the return spring (305) is installed on the upper end of the second connecting rod (304).

5. A cemented carbide gear cutter with a composite coating heat dissipation substrate according to claim 4, characterized in that: The fixing component (3) further includes: a limiting rod (306); the limiting rod (306) is connected to one side of the second connecting rod (304) via a rotating shaft; the other end of the limiting rod (306) can be locked into a slot for fixation.

6. A cemented carbide gear cutter with a composite coating heat dissipation substrate according to claim 1, characterized in that: The limiting component (4) includes: a fixing block (403) and a push rod (404); the fixing block (403) is slidably connected inside the third connecting column (6); and the push rod (404) is welded to the upper end of the fixing block (403).

7. A cemented carbide gear cutter with a composite coating heat dissipation substrate according to claim 6, characterized in that: The limiting component (4) further includes: a limiting plate (402) and a lead screw (405); the limiting plate (402) is disposed on the left and right sides of the third connecting column (6); and the lead screw (405) is threaded into the limiting plate (402).

8. A cemented carbide gear cutter with a composite coating heat dissipation substrate according to claim 7, characterized in that: The limiting component (4) further includes: a connecting block (406) and a limiting ring (401); the connecting block (406) is welded to the upper end of the lead screw (405); and the limiting ring (401) is welded to the lower end of the limiting plate (402).

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