A new type of replaceable blade rotary tool head

Abstract

The utility model relates to cutting tool technical field discloses a novel rotatory tool bit of replaceable blade, including three -way pipe, three -way pipe one end fixedly connected with tool head pipeline, three -way pipe other end fixedly connected with water pipe, the inside wall of tool head pipeline is provided with replacement subassembly, the water pipe and three -way pipe outer wall are provided with dismounting subassembly, the replacement subassembly includes connecting ring no.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a novel rotary cutting head with replaceable inserts. Background Technology

[0002] In industrial processing and daily cutting scenarios, a new type of rotary cutting head with replaceable blades is a key component for achieving efficient cutting operations. It is mainly used to complete the cutting, milling or trimming of various materials through rotational motion in conjunction with the cutting edge of the blade. It is widely used in machining, wood processing, and everyday tools, and is of great significance for improving work efficiency and machining accuracy.

[0003] Currently, most commercially available rotary blade cutters with replaceable blades use either a single bolt-fixed structure or a snap-fit ​​connection to connect the blade to the blade body. From a technical perspective, the bolt-fixed structure directly locks the blade assembly to the blade body with a bolt, relying on the friction between the bolt and the threaded hole for fixation. The snap-fit ​​connection structure uses an elastic snap on the blade body that engages with a slot on the blade assembly, utilizing the clamping force generated by the elastic deformation of the snap to secure the blade assembly. When replacing the blade, tools are needed to pry open the snap or unscrew the bolt, and then the old blade must be manually removed and the new blade installed.

[0004] In existing technologies, rotary cutting heads generally suffer from cumbersome cutting head replacement operations and difficulty in adapting to different cutting head sizes. Specifically, when using a bolt-fixed structure, changing the cutting head requires repeatedly aligning the bolt holes and tightening the bolts multiple times, resulting in numerous and time-consuming steps. When using a snap-fit ​​connection structure, not only is it prone to damage due to excessive deformation of the snap-fit ​​during disassembly, but neither structure is designed with a positioning and fixing mechanism to adapt to different cutting head sizes. When it is necessary to change to a different size cutting head to meet different processing requirements, either the entire cutting head assembly needs to be replaced or additional adapters need to be installed, increasing usage costs and further extending the replacement cycle, thus affecting work efficiency. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a novel rotary cutter head with replaceable blades, which aims to improve the problems of cumbersome blade replacement operation, easy positioning deviation, and difficulty in adapting to different sizes of blade heads.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel rotary blade head with replaceable blades, comprising a three-way pipe, one end of which is fixedly connected to a blade head pipe, and the other end of which is fixedly connected to a water pipe, wherein a replacement component is provided on the inner wall of the blade head pipe, and a disassembly component is provided on the water pipe and the outer wall of the three-way pipe; The replacement component includes a first connecting ring, the outer wall of which is fixedly connected to the inner wall of the cutter head tube. A second connecting ring is attached to the surface of the first connecting ring, the inner wall of which is fixedly connected to the cutter head body. A positioning post is fixedly connected to the outer wall of the second connecting ring. A positioning hole is provided on the inner wall of the first connecting ring. A support cylinder is fixedly connected to the inner wall of the first connecting ring. A spring is fixedly connected to the inner wall of the support cylinder. A push post is fixedly connected to one end of the spring. A cross screw is threaded onto the inner wall of the second connecting ring.

[0007] Furthermore, the disassembly assembly includes a limiting ring one, the inner wall of which is disposed on the outer wall of the water pipe and the tee pipe, one end of the limiting ring one is rotatably connected to a support platform, the inner wall of the support platform is rotatably connected to a limiting ring two, the other end of the limiting ring one is rotatably connected to a rotating column, the outer wall of the rotating column is fixedly connected to a threaded column, and the outer wall of the threaded column is threadedly connected to a rotating block.

[0008] Furthermore, the outer wall of the threaded column is rotatably connected to one end of the second limiting ring, and the inner wall of the rotating block is attached to the outer wall of the second limiting ring.

[0009] Furthermore, the inner wall of the second limiting ring is disposed on the outer wall of the tee pipe, and the inner wall of the second limiting ring is disposed on the outer wall of the water pipe.

[0010] Furthermore, the outer wall of the push column is slidably connected to the inner wall of the support cylinder, and one end of the push column is attached to the inner wall of the connecting ring.

[0011] Furthermore, the outer wall of the cross screw is threaded to the inner wall of the first connecting ring, and the second connecting ring is disposed on the inner wall of the cutter head pipe.

[0012] Furthermore, the positioning post is cylindrical, and the positioning hole is cylindrical.

[0013] Furthermore, the outer wall of the positioning column is slidably connected to the inside of the positioning hole, and the outer wall of the pushing column is slidably connected to the inner wall of the connecting ring.

[0014] This utility model has the following beneficial effects: 1. In this utility model, unscrewing the screws releases the two connecting rings from their fixation. The spring pushes the connecting rings through the push column, causing the positioning structure to disengage. The old cutter head is then removed, and the new cutter head is aligned with the positioning and inserted. The screws are then tightened to complete the fixation. This solves the problems of cumbersome cutter head replacement operations, easy positioning deviations, and difficulty in adapting to different sizes of cutter heads. It achieves the effects of adapting to different sizes of cutter head bodies, improving cutter head replacement efficiency, ensuring usage stability, and enhancing the versatility of cutter heads.

[0015] 2. In this utility model, rotating the rotating block moves it along the threaded column to release the pressure on the limiting ring, allowing the two limiting rings to be removed and the water pipe and tee pipe to be disassembled. During installation, the limiting ring is fitted, and the rotating block is rotated in the opposite direction to press the limiting ring and fix it. This achieves the goals of shortening maintenance time, reducing difficulty, protecting components from damage, extending their lifespan, reducing costs, and ensuring the stability of the device in subsequent use, while reducing the risk of failure. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a novel replaceable blade rotary cutter head proposed in this utility model. Figure 2 This is a schematic diagram of the cutter head tube section of a novel replaceable blade rotary cutter head proposed in this utility model. Figure 3 This is a schematic diagram of the cross screw part of a novel replaceable blade rotary cutter head proposed in this utility model. Figure 4 This is a schematic diagram of the spring portion structure of a novel replaceable blade rotary cutter head proposed in this utility model. Figure 5 This is a schematic diagram of the rotating block portion of a novel replaceable blade rotary cutter head proposed in this utility model.

[0017] Legend: 1. T-joint; 2. Water pipe; 3. Cutter head pipe; 4. Limiting ring one; 5. Cutter head body; 6. Connecting ring one; 7. Connecting ring two; 8. Phillips head screw; 9. Positioning pin; 10. Positioning hole; 11. Pushing pin; 12. Support cylinder; 13. Spring; 14. Support platform; 15. Rotating block; 16. Limiting ring two; 17. Rotating pin; 18. Threaded pin. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1 - Figure 3 The present invention provides an embodiment of a novel rotary blade replaceable blade, comprising a three-way pipe 1, a blade head pipe 3 fixedly connected to one end of the three-way pipe 1, a water pipe 2 fixedly connected to the other end of the three-way pipe 1, a replacement component provided on the inner wall of the blade head pipe 3, and a disassembly component provided on the outer wall of the water pipe 2 and the three-way pipe 1. The replacement components include a connecting ring 6, whose outer wall is fixedly connected to the inner wall of the cutter head tube 3. A connecting ring 7 is attached to the surface of the connecting ring 6, and the cutter head body 5 is fixedly connected to the inner wall of the connecting ring 7. A positioning post 9 is fixedly connected to the outer wall of the connecting ring 7. The positioning post 9 cooperates with the positioning hole 10 to guide the connecting ring 7 to be installed accurately and prevent the cutter head body 5 from shifting. The inner wall of the connecting ring 6 has a positioning hole 10, which fits into the positioning post 9 to restrict the circumferential rotation of the connecting ring 7 and enhance the stability of the cutter head body 5 after installation. A support cylinder 12 is fixedly connected to the inner wall of the connecting ring 6, and a spring 13 is fixedly connected to the inner wall of the support cylinder 12. A push post 11 is fixedly connected to one end of the spring 13. The push post 11 transmits the elastic force of the spring 13. When disassembling, it pushes the connecting ring 7 to help the positioning post 9 disengage from the positioning hole 10, simplifying the disassembly operation. A cross screw 8 is threaded onto the inner wall of the connecting ring 7.

[0020] Specifically, first operate the Phillips screw 8 to unscrew it and release the connection ring 6 and the connection ring 7. At this time, the spring 13 drives the push column 11 to push the connection ring 7, so that the positioning column 9 is disengaged from the positioning hole 10. Then, manually remove the connection ring 7 and the cutter head body 5. When replacing, manually align the positioning column 9 with the positioning hole 10 and press the connection ring 7 to compress the spring 13. Finally, operate the Phillips screw 8 to screw it in and fix it, and the replacement is completed.

[0021] Reference Figure 1 - Figure 5 The disassembly assembly includes a limiting ring 4, which, together with a limiting ring 16, clamps the water pipe 2 and the tee pipe 1, providing a connection point for the rotating column 17 and the support platform 14, thus limiting their relative displacement. The inner wall of the limiting ring 4 is set on the outer wall of the water pipe 2 and the tee pipe 1. One end of the limiting ring 4 is rotatably connected to the support platform 14, and the inner wall of the support platform 14 is rotatably connected to the limiting ring 16. The other end of the limiting ring 4 is rotatably connected to the rotating column 17, and the outer wall of the rotating column 17 is fixedly connected to a threaded column 18. The outer wall of the threaded column 18 is threadedly connected to a rotating block 15, which cooperates with the threaded column 18 to achieve axial movement through rotation, applying a squeezing or releasing force to the limiting ring 16, thereby controlling the fixing and disassembly of the water pipe 2 and the tee pipe 1.

[0022] Specifically, first manually rotate the rotating block 15 on the outer wall of the second limiting ring 16. Due to the threaded engagement, the rotating block 15 moves along the threaded post 18 and no longer presses against the second limiting ring 16. Remove the first limiting ring 4 and the second limiting ring 16 from the outside of the water pipe 2 and the tee pipe 1 to achieve disassembly. During installation, manually put both of them on the outside of the water pipe 2 and the tee pipe 1, and rotate the rotating block 15 in the opposite direction to press against the second limiting ring 16 to complete the fixation.

[0023] Reference Figure 1 - Figure 5The outer wall of the threaded column 18 is rotatably connected to one end of the second limiting ring 16. The inner wall of the rotating block 15 is attached to the outer wall of the second limiting ring 16. The inner wall of the second limiting ring 16 is set on the outer wall of the tee pipe 1 and the water pipe 2. The outer wall of the pushing column 11 is slidably connected to the inner wall of the support cylinder 12. One end of the pushing column 11 is attached to the inner wall of the second connecting ring 7. The outer wall of the cross screw 8 is threadedly connected to the inner wall of the first connecting ring 6. The second connecting ring 7 is set on the inner wall of the cutter head pipe 3. The positioning column 9 is cylindrical. The positioning hole 10 is cylindrical. The outer wall of the positioning column 9 is slidably connected to the inside of the positioning hole 10. The outer wall of the pushing column 11 is slidably connected to the inner wall of the first connecting ring 6.

[0024] Working principle: When a new type of replaceable blade rotary cutter head is needed, first unscrew the cross screw 8 between connecting ring 2 7 and connecting ring 1 6 to release the threaded fixation between the two. The support cylinder 12 is equipped with a spring 13. After the screw is removed, the push column 11 connected to one end of the spring 13 will push the connecting ring 2 7 with the elastic force of the spring 13, so that the positioning column 9 slides out of the positioning hole 10. At this time, the connecting ring 2 7 and the cutter head body 5 fixed thereto can be taken out from the cutter head tube 3. When installing the new cutter head body 5, align the positioning column 9 of the connecting ring 2 7 with the positioning hole 10 of the connecting ring 1 6 and insert it. Press the connecting ring 2 7 to make the push column 11 compress the spring 13 and fit against the connecting ring 2 7. Finally, screw in the cross screw 8 so that the cross screw 8 is threadedly connected to the connecting ring 2 7 and the connecting ring 1 6 at the same time, thus completing the replacement and fixation of the cutter head body 5. Furthermore, when it is necessary to disassemble water pipe 2 and tee pipe 1, first rotate the rotating block 15 that is attached to the outer wall of the limiting ring 2 16. Since the rotating block 15 is threadedly connected to the threaded post 18 and the threaded post 18 is fixed on the rotating post 17, the rotation of the rotating block 15 will move along the outer wall of the threaded post 18, gradually releasing the compression and fixation on the limiting ring 2 16. At the same time, one end of the limiting ring 1 4 is rotatably connected to the support platform 14, and the support platform 14 is rotatably connected to the limiting ring 2 16. The threaded post 18 rotates. At one end of the second limiting ring 16, as the rotating block 15 moves, the first limiting ring 4 and the second limiting ring 16, which were originally attached to the outside of the water pipe 2 and the tee pipe 1, can be removed from the outside of the two, thereby realizing the disassembly of the water pipe 2 and the tee pipe 1. During installation, the first limiting ring 4 and the second limiting ring 16 are put on the outside of the water pipe 2 and the tee pipe 1, and the rotating block 15 is rotated in the opposite direction, so that the rotating block 15 moves along the threaded column 18 and squeezes the second limiting ring 16, thus completing the fixation of the water pipe 2 and the tee pipe 1.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of replaceable blade rotary tool head comprising a tee (1), characterized in that: One end of the three-way pipe (1) is fixedly connected to a blade pipe (3), and the other end of the three-way pipe (1) is fixedly connected to a water pipe (2). A replacement component is provided on the inner wall of the blade pipe (3), and a disassembly component is provided on the outer wall of the water pipe (2) and the three-way pipe (1). The replacement component includes a first connecting ring (6), the outer wall of which is fixedly connected to the inner wall of the cutter head pipe (3), a second connecting ring (7) attached to the surface of the first connecting ring (6), a cutter head body (5) fixedly connected to the inner wall of the second connecting ring (7), a positioning post (9) fixedly connected to the outer wall of the second connecting ring (7), a positioning hole (10) opened in the inner wall of the first connecting ring (6), a support cylinder (12) fixedly connected to the inner wall of the first connecting ring (6), a spring (13) fixedly connected to the inner wall of the support cylinder (12), a push post (11) fixedly connected to one end of the spring (13), and a cross screw (8) threadedly connected to the inner wall of the second connecting ring (7).

2. A new type of rotary tool bit with replaceable inserts as claimed in claim 1 characterized in that: The disassembly assembly includes a limiting ring one (4), the inner wall of the limiting ring one (4) is set on the outer wall of the water pipe (2) and the three-way pipe (1), one end of the limiting ring one (4) is rotatably connected to a support platform (14), the inner wall of the support platform (14) is rotatably connected to a limiting ring two (16), the other end of the limiting ring one (4) is rotatably connected to a rotating column (17), the outer wall of the rotating column (17) is fixedly connected to a threaded column (18), and the outer wall of the threaded column (18) is threadedly connected to a rotating block (15).

3. A new type of rotary tool bit with replaceable inserts as claimed in claim 2, characterized in that: The outer wall of the threaded column (18) is rotatably connected to one end of the limiting ring (16), and the inner wall of the rotating block (15) is attached to the outer wall of the limiting ring (16).

4. A new type of rotary tool bit with replaceable inserts as claimed in claim 2, characterized in that: The inner wall of the second limiting ring (16) is set on the outer wall of the three-way pipe (1), and the inner wall of the second limiting ring (16) is set on the outer wall of the water pipe (2).

5. A new type of rotary tool bit with replaceable inserts as claimed in claim 1, characterized in that: The outer wall of the push column (11) is slidably connected to the inner wall of the support cylinder (12), and one end of the push column (11) is attached to the inner wall of the connecting ring (7).

6. A new type of rotary tool bit with replaceable inserts as claimed in claim 1, characterized in that: The outer wall of the cross screw (8) is threaded to the inner wall of the connecting ring one (6), and the connecting ring two (7) is set on the inner wall of the cutter head pipe (3).

7. A new type of rotary tool bit with replaceable inserts as claimed in claim 1, characterized in that: The positioning post (9) is cylindrical, and the positioning hole (10) is cylindrical.

8. A new type of rotary tool bit with replaceable inserts as claimed in claim 1, characterized in that: The outer wall of the positioning column (9) is slidably connected to the inside of the positioning hole (10), and the outer wall of the pushing column (11) is slidably connected to the inner wall of the connecting ring (6).

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