Milling cutter for processing composite material diamond coating layer by layer

Abstract

The milling cutter comprises a cutter handle and a cutter head, a rectangular groove is formed in the bottom side of the cutter handle, the top end of the cutter head is fixedly connected with a rectangular rod corresponding to the rectangular groove, a limiting groove is formed in one side wall in the rectangular groove, and the limiting groove is fixedly connected with the rectangular rod. A control piece is arranged in the limiting groove; the limiting groove comprises a first inner ratchet wheel, a control column, a first ratchet wheel elastic piece, a limiting column and a cross-shaped rod. The utility model relates to the technical field of diamond coating milling cutters. According to the milling cutter for layered machining of the composite material diamond coating, when the cutter head is mounted, a rectangular rod at the top of the cutter head is directly inserted into the cutter handle for automatic positioning, and when the cutter head is dismounted, a lathe directly drives the cutter handle to press downwards to trigger the control piece again, so that the cutter head falls off; therefore, when the tool bit is dismounted and mounted, only the tool handle needs to be directly pressed down to be in butt joint with the tool bit without manual operation, the mounting and dismounting efficiency of the tool bit is improved, and the mounting safety effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of diamond-coated milling cutters, and in particular to a milling cutter for layered machining of diamond coatings on composite materials. Background Technology

[0002] Layered machining technology utilizes advanced software algorithms to precisely process composite materials into distinct layers. During the machining process, the end mill cuts material layer by layer according to a preset path and depth, ensuring that each layer is machined uniformly and precisely. Diamond-coated end mills are typically used; the diamond coating is prepared on a cemented carbide substrate using chemical vapor deposition (CVD) technology. CVD technology allows for precise control of the coating's thickness, structure, and properties, resulting in diamond coatings with extremely high hardness and a low coefficient of friction. This coating not only improves the cutting performance of the tool but also enhances its wear and corrosion resistance.

[0003] In the prior art, a diamond-coated micro-end milling cutter disclosed in CN215615381U includes a drill rod and a cutter head. The upper end of the cutter head is integrally formed with an insert block. The end of the drill rod connected to the cutter head has a slot. The upper end of the insert block is internally connected to a limiting insert rod. The drill rod has limiting holes on both sides opposite the slot for inserting the limiting insert rod. By setting the drill rod and the cutter head as a separate structure, the drill rod can be used continuously without damage, reducing the material of the drill rod on the original end mill and saving resources. Moreover, this separate structure has a good fixing effect after connection and is easy to disassemble when not in use. Simply press the pop-out levers on both sides to pop the cutter head out of the drill rod. When docking, simply press the cutter head into the drill rod so that the limiting insert rod is inserted into the limiting hole. Compared with replacing the end mill, this method is simple to operate and more efficient.

[0004] When using this application, the cutter head can be quickly replaced by pressing the pop-out levers on both sides, thereby achieving the effect of improving the efficiency of replacing milling cutters. However, when removing the milling cutter, it is necessary to press the pop-out lever manually or with a tool. Because it requires manual operation, it is easy to cause accidental injury to the staff, thus affecting the safety of replacing milling cutters. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a milling cutter for layered machining of diamond coatings on composite materials, so as to solve the technical problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A milling cutter for layered machining of diamond coatings on composite materials includes a shank and a cutter head. A rectangular groove is formed on the bottom side of the shank, and a rectangular rod corresponding to the rectangular groove is fixedly connected to the top of the cutter head. A limiting groove is formed on one side wall of the rectangular groove, and a control element is provided in the limiting groove.

[0008] The limiting groove includes a first inner ratchet, a control post, a first ratchet spring, a limiting post, a cross bar, a limiting spring, a support post, and an external gear. The first inner ratchet is rotatably mounted on the inner wall of the limiting groove. The control post is disposed within the first inner ratchet, passes through the first inner ratchet, and is rotatably connected to the inner wall of the limiting groove. There are several first ratchet springs arranged in a circular array and fixedly mounted on the outer periphery of the control post. The ends of the first ratchet springs extend into the corresponding ratchet grooves. The number of limiting posts corresponds to the number of first ratchet springs, and each limiting post is... The cross bar is fixedly installed on the side of the corresponding first ratchet spring and fixedly connected to the control post. The cross bar is fixedly installed on the end of the control post. Both opposite ends of the cross bar are provided with slots. The number of limiting springs and the cross bar corresponds to the number of slots. The limiting spring is fixedly installed on the side wall of the corresponding slot end. The support post is fixedly connected to the corresponding limiting spring. The external gear is fixedly installed on the outer periphery of the first inner ratchet. The rectangular bar is provided with a tooth groove corresponding to the external gear. The side of the rectangular bar is provided with a support groove corresponding to the support post. The face of the cross bar is provided with a limiting member.

[0009] In a preferred embodiment, the present invention can be further configured as follows: the limiting member includes a connecting post, the connecting post is connected to the face side of the cross bar, a second inner ratchet is provided on the outside of the connecting post, the second inner ratchet is fixedly connected to the inner side wall of the limiting groove, a plurality of second ratchet springs are fixedly connected to the outer periphery of the connecting post, a fixing post is provided on the side of the second ratchet springs, and the fixing post is fixedly connected to the outer periphery of the connecting post.

[0010] In a preferred embodiment, the present invention can be further configured such that the end of the support column extends into the support groove, and the bottom end of the support groove is open.

[0011] In a preferred embodiment, the present invention can be further configured such that: a gap is left between the top of the handle and the top of the blade, and a gap is left between the top of the rectangular rod and the top sidewall of the rectangular groove.

[0012] In a preferred embodiment, the present invention can be further configured such that: a circular groove is provided on each of the two opposite sides of the rectangular rod, a tension spring is fixedly connected to the inner end sidewall of the circular groove, a fixed shaft is fixedly connected to the end of the tension spring, and a fixing hole is provided in the rectangular groove at the position corresponding to the fixed shaft.

[0013] In summary, this utility model has at least one of the following beneficial technical effects:

[0014] 1. This milling cutter for layered machining of diamond coating on composite materials features an automatic positioning mechanism where the rectangular bar at the top of the cutter head is inserted directly into the tool holder during installation. During disassembly, the lathe directly drives the tool holder downward to trigger the control mechanism, causing the cutter head to detach. Thus, manual installation and disassembly of the cutter head is not required; simply pressing down the tool holder to align with the cutter head is sufficient. This improves the efficiency of cutter head installation and disassembly, as well as enhances installation safety.

[0015] 2. A milling cutter for layered machining of diamond coatings on composite materials, wherein when the cross bar rotates clockwise, it drives the connecting post to rotate, which in turn drives the second ratchet spring to rotate. When the second ratchet spring rotates, it is squeezed by the second inner ratchet, causing the second ratchet spring to bend, thus allowing the connecting post to rotate smoothly. When the external gear rotates counterclockwise, the second ratchet spring is limited by the fixed post, so the second ratchet spring cannot bend, thereby limiting the connecting post and then limiting the cross bar, preventing the cross bar from rotating. This achieves the effect that the cross bar can rotate when the rectangular bar moves upward, and the cross bar will be positioned and unable to rotate when the rectangular bar moves downward, so as to facilitate the installation and removal of the cutter head;

[0016] 3. The milling cutter for layered processing of diamond coatings on composite materials is provided with a gap between the cutter head and the cutter shank, and a gap between the top of the rectangular rod and the top sidewall of the rectangular groove, so as to provide room for the rectangular rod to move upward and to prevent the rectangular rod from being unable to move after being inserted into the rectangular groove and positioned.

[0017] 4. This type of milling cutter for layered machining of diamond coatings on composite materials, after the cutter head is installed, will rotate rapidly during operation, thereby generating centrifugal force. The centrifugal force will drive the fixed shaft to insert into the fixed hole, thereby further fixing the cutter head and preventing the cutter head from being triggered by the control components when the cutter head rotates and presses down, causing the cutter head to fall off. When the cutter head stops, the tension spring will pull the fixed shaft back, so that the cutter head can only be removed when the machine stops working, and it provides a further positioning effect when the cutter head rotates. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a milling cutter for layered processing of diamond coatings on composite materials according to this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of a milling cutter for layered processing of diamond coatings on composite materials, according to the present invention, defining the interior of the groove.

[0021] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] Figure 4 This is a schematic diagram of the limiting structure and control component connection structure of a milling cutter for layered processing of diamond coatings on composite materials according to this utility model.

[0023] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point B.

[0024] Figure 6 This is a schematic diagram of the internal structure of the cross bar of a milling cutter for layered processing of diamond coatings on composite materials according to this utility model.

[0025] Figure 7 This is a schematic diagram of the internal structure of the fixing hole of a milling cutter for layered processing of diamond coatings on composite materials according to this utility model.

[0026] In the diagram, 1. Handle; 2. Cutter head; 3. Rectangular groove; 4. Rectangular rod; 5. Limiting groove; 6. Control component; 7. First inner ratchet; 8. Control post; 9. First ratchet spring; 10. Limiting post; 11. Cross bar; 12. Limiting spring; 13. Support post; 14. External gear; 15. Tooth groove; 16. Support groove; 17. Connecting post; 18. Second inner ratchet; 19. Second ratchet spring; 20. Fixing post; 21. Circular groove; 22. Tension spring; 23. Fixing shaft; 24. Fixing hole; 25. Limiting component; 26. Empty groove. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example:

[0029] Reference Figures 1-7The present invention discloses a milling cutter for layered processing of diamond coating of composite materials, including a cutter holder 1 and a cutter head 2. A rectangular groove 3 is provided on the bottom side of the cutter holder 1, and a rectangular rod 4 corresponding to the rectangular groove 3 is fixedly connected to the top of the cutter head 2. A limiting groove 5 is provided on one side wall of the rectangular groove 3, and a control element 6 is provided in the limiting groove 5.

[0030] The limiting groove 5 includes a first inner ratchet 7, a control post 8, a first ratchet spring 9, a limiting post 10, a cross bar 11, a limiting spring 12, a support post 13, and an external gear 14. The first inner ratchet 7 is rotatably mounted on the inner wall of the limiting groove 5. The control post 8 is disposed within the first inner ratchet 7, passes through the first inner ratchet 7, and is rotatably connected to the inner wall of the limiting groove 5. A plurality of first ratchet springs 9 are arranged in a circular array and fixedly mounted on the outer periphery of the control post 8. The ends of the first ratchet springs 9 extend into the corresponding ratchet grooves. The number of limiting posts 10 corresponds to the number of first ratchet springs 9, and each limiting post 10 is respectively disposed within... The first ratchet spring 9 is fixedly connected to the control post 8 on its side. The cross bar 11 is fixedly installed at the end of the control post 8. Both ends of the cross bar 11 are provided with slots 26. The number of limiting springs 12 and the cross bar 11 corresponds to the number of slots 26. The limiting springs 12 are fixedly installed on the side wall of the corresponding slot 26. The support post 13 is fixedly connected to the corresponding limiting spring 12. The external gear 14 is fixedly installed on the outer periphery of the first inner ratchet 7. The rectangular bar 4 is provided with a tooth groove 15 corresponding to the external gear 14. The side of the rectangular bar 4 is provided with a support groove 16 corresponding to the support post 13. The face of the cross bar 11 is provided with a limiting member 25.

[0031] In this embodiment, the rectangular rod 4 at the top of the cutter head 2 is inserted into the rectangular groove 3. Then, the toothed groove 15 on the rectangular rod 4 will drive the external gear 14 to rotate. The initial state of the cross rod 11 is that the end without the support column 13 is facing the rectangular groove 3. When the external gear 14 rotates clockwise, it will drive the control column 8 to rotate through the first ratchet spring 9, and then drive the cross rod 11 to rotate. After the rectangular rod 4 is inserted into the top of the rectangular groove 3, the support column 13 on the cross rod 11 will be pushed by the limiting spring 12 and inserted into the support groove 16. Then, the rectangular rod 4 will move downward by the gravity of the cutter head 2, and then the support column 13 will adhere to the top side wall of the support groove 16 to achieve the limiting effect.

[0032] When the rectangular rod 4 moves downward under the gravity of the cutter head 2, the limiting member 25 will drive the external gear 14 to rotate counterclockwise. The limiting post 10 will support the first ratchet spring 9, and at the same time the first inner ratchet 7 will squeeze the first ratchet spring 9, causing it to bend. This will prevent the first inner ratchet 7 from driving the cross rod 11 to rotate when it rotates counterclockwise, thereby causing the support post 13 to disengage from the support groove 16.

[0033] If it is necessary to remove the cutter head 2, the cutter head 2 is directly driven to contact the worktable through the control of the lathe, which in turn drives the rectangular rod 4 to move upward, thereby driving the cross rod 11 to rotate again, so that the end of the cross rod 11 without the support column 13 is aligned with the rectangular groove 3, thereby releasing the restriction on the cutter head 2, thus facilitating the removal of the cutter head 2, and thus achieving the effect of avoiding accidental injury to the staff due to manual replacement of the cutter head 2.

[0034] In a further preferred embodiment of this utility model, such as Figure 2-6 As shown, the limiting member 25 includes a connecting post 17, which is connected to the face side of the cross bar 11. A second inner ratchet 18 is provided on the outside of the connecting post 17. The second inner ratchet 18 is fixedly connected to the inner side wall of the limiting groove 5. A plurality of second ratchet springs 19 are fixedly connected to the outer periphery of the connecting post 17. A fixing post 20 is provided on the side of the second ratchet spring 19. The fixing post 20 is fixedly connected to the outer periphery of the connecting post 17.

[0035] In this embodiment, when the cross bar 11 rotates clockwise, it will drive the connecting post 17 to rotate, which in turn will drive the second ratchet spring 19 to rotate. When the second ratchet spring 19 rotates, it will be squeezed by the second inner ratchet 18, which will cause the second ratchet spring 19 to bend, thereby allowing the connecting post 17 to rotate smoothly. When the external gear 14 rotates counterclockwise, the second ratchet spring 19 is limited by the fixed post 20, so the second ratchet spring 19 cannot bend, thereby limiting the connecting post 17, and thus limiting the cross bar 11, preventing the cross bar 11 from rotating. This achieves the effect that the cross bar can rotate when the rectangular bar 4 moves upward, and the cross bar 11 will be positioned and cannot rotate when the rectangular bar 4 moves downward, so as to facilitate the installation and removal of the cutter head 2.

[0036] In a further preferred embodiment of this utility model, such as Figure 2-6 As shown, the end of the support column 13 extends into the support groove 16, and the bottom end of the support groove 16 is open.

[0037] In this embodiment, the end of the support column 13 extends into the support groove 16, and the bottom of the support groove 16 is open so that when the rectangular rod 4 moves upward, it can pass through the support groove 16 to avoid the support column 13, thus preventing the support column 13 from jamming the rectangular rod 4 and preventing it from moving.

[0038] In a further preferred embodiment of this utility model, such as Figure 2-6 As shown, there is a gap between the top of the handle 1 and the top of the cutter head 2, and a gap between the top of the rectangular rod 4 and the top side wall of the rectangular groove 3.

[0039] In this embodiment, a gap is left between the cutter head 2 and the cutter handle 1, and a gap is left between the top of the rectangular rod 4 and the top side wall of the rectangular groove 3, so that the rectangular rod 4 has room to move upward and avoids the rectangular rod 4 being unable to move after being inserted into the rectangular groove 3 and positioned.

[0040] In a further preferred embodiment of this utility model, such as Figure 2-7 As shown, the rectangular rod 4 has circular grooves 21 on both opposite sides. A tension spring 22 is fixedly connected to the inner side wall of the circular groove 21. A fixing shaft 23 is fixedly connected to the end of the tension spring 22. A fixing hole 24 is provided in the rectangular groove 3 at the position corresponding to the fixing shaft 23.

[0041] In this embodiment, after the cutter head 2 is installed, it will rotate rapidly during operation, thereby generating centrifugal force. The centrifugal force will drive the fixed shaft 23 to insert into the fixed hole 24, thereby further fixing the cutter head 2 and preventing the cutter head 2 from being triggered by the control component 6 when it rotates and presses down, causing the cutter head 2 to fall off. When the cutter head 2 stops, the tension spring 22 will pull the fixed shaft 23 back, so that the cutter head 2 can only be removed when the machine stops working, and provides a further positioning effect when the cutter head 2 rotates.

[0042] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A milling cutter for layered machining of diamond coatings on composite materials, comprising a shank (1) and a cutter head (2), characterized in that, The bottom side of the handle (1) is provided with a rectangular groove (3), and the top of the blade (2) is fixedly connected with a rectangular rod (4) corresponding to the rectangular groove (3). One side wall of the rectangular groove (3) is provided with a limiting groove (5), and a control component (6) is provided in the limiting groove (5). The limiting groove (5) includes a first inner ratchet (7), a control post (8), a first ratchet spring (9), a limiting post (10), a cross bar (11), a limiting spring (12), a support post (13), and an external gear (14). The first inner ratchet (7) is rotatably mounted on the inner wall of the limiting groove (5). The control post (8) is disposed inside the first inner ratchet (7). The control post (8) passes through the first inner ratchet (7) and is rotatably connected to the inner wall of the limiting groove (5). There are several first ratchet springs (9). Several first ratchet springs (9) are arranged in a circular array and fixedly mounted on the outer periphery of the control post (8). The ends of the first ratchet springs (9) extend into the ratchet grooves corresponding to the first ratchet springs (9). The number of limiting posts (10) corresponds to the number of first ratchet springs (9). Each limiting post (10) is respectively provided with The first ratchet spring (9) is fixedly connected to the control post (8) on the side of the corresponding first ratchet spring (9). The cross bar (11) is fixedly installed at the end of the control post (8). The two opposite ends of the cross bar (11) are provided with slots (26). The number of limiting springs (12) and the cross bar (11) corresponds to the number of slots (26). The limiting springs (12) are fixedly installed on the side wall of the corresponding slot (26). The support post (13) is fixedly connected to the corresponding limiting spring (12). The external gear (14) is fixedly installed on the outer periphery of the first inner ratchet (7). The rectangular bar (4) is provided with a tooth groove (15) corresponding to the external gear (14). The side of the rectangular bar (4) is provided with a support groove (16) corresponding to the support post (13). The face of the cross bar (11) is provided with a limiting member (25).

2. The milling cutter for layered machining of diamond coatings on composite materials according to claim 1, characterized in that, The limiting member (25) includes a connecting post (17), which is connected to the face of the cross bar (11). A second inner ratchet (18) is provided on the outside of the connecting post (17), and the second inner ratchet (18) is fixedly connected to the inner wall of the limiting groove (5). A number of second ratchet springs (19) are fixedly connected to the outer periphery of the connecting post (17). A fixing post (20) is provided on the side of the second ratchet spring (19), and the fixing post (20) is fixedly connected to the outer periphery of the connecting post (17).

3. The milling cutter for layered machining of diamond coatings on composite materials according to claim 1, characterized in that, The end of the support column (13) extends into the support groove (16), and the bottom end of the support groove (16) is open.

4. The milling cutter for layered machining of diamond coatings on composite materials according to claim 3, characterized in that, There is a gap between the top of the handle (1) and the top of the blade (2), and there is a gap between the top of the rectangular rod (4) and the top side wall of the rectangular groove (3).

5. A milling cutter for layered machining of diamond coatings on composite materials according to claim 4, characterized in that, The rectangular rod (4) has circular grooves (21) on both opposite sides. A tension spring (22) is fixedly connected to the inner end side wall of the circular groove (21). A fixed shaft (23) is fixedly connected to the end of the tension spring (22). A fixing hole (24) is opened in the rectangular groove (3) at the position corresponding to the fixed shaft (23).

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