Sectional type PCD forming side milling cutter

Abstract

The utility model discloses a sectional type PCD (Poly Crystal Diamond) forming side milling cutter, which relates to the field of milling cutters and comprises a cutter handle, a baffle plate arranged at the bottom of the cutter handle, a plurality of cutter heads slidably connected to the outer side of the cutter handle, blades equidistantly arranged on the outer rings of the cutter heads, a lantern ring annularly extending upwards arranged at the center of the top of each cutter head, and a plurality of cutter heads sleeved on the cutter handle and mutually stacked. According to the side milling cutter, the number of the cutter heads can be flexibly adjusted, the cutter heads are mutually stacked, so that the cutting width of the side milling cutter can be quickly and conveniently changed according to different machining requirements, the whole cutter does not need to be replaced when the side milling cutter is used for workpieces with different specifications and different machining requirements, and the side milling cutter is convenient to use. The cutting width can be adjusted only by increasing or decreasing the number of the cutter heads, the universality and applicability of the cutter are improved, and the time and cost for frequently replacing the cutter due to machining of different workpieces are reduced.

Description

Technical Field

[0001] This utility model relates to the field of milling cutters, and more particularly to a segmented PCD forming side milling cutter. Background Technology

[0002] In the field of machining, side end mills are a commonly used cutting tool, widely applied in the cutting of various workpieces. Existing side end mills typically have a fixed cutting width, or adjusting the cutting width requires replacing the entire tool or insert assembly. This adjustment method is not only cumbersome, requiring significant time and manpower, but also prone to tool installation errors during replacement, affecting machining accuracy. For example, when machining workpieces of different specifications, if the cutting width is unsuitable, machine downtime and tool replacement are necessary, significantly reducing production efficiency and increasing production costs. Utility Model Content

[0003] The purpose of this invention is to provide a segmented PCD forming side milling cutter, which solves the problem of inconvenient adjustment of the cutting width of existing side milling cutters.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a segmented PCD forming side milling cutter includes a shank, a baffle plate at the bottom of the shank, and several cutter discs slidably connected to the outside of the shank. The cutter discs have cutting edges equidistantly arranged on their outer rings, and an annular upward-extending collar is provided at the center of the top of the cutter discs. The several cutter discs are stacked on the shank, and when stacked, the cutting edges of adjacent cutter discs are in contact with each other, and the collar of the lower cutter disc is in contact with the bottom of the upper cutter disc. The outside of the shank has a protrusion, and the inner wall of the cutter disc has a groove, which is slidably connected to the outside of the protrusion.

[0005] Preferably, positioning holes are equidistantly provided on one side of the tool holder, and a positioning sleeve is slidably connected to the outside of the tool holder. A screw is rotatably connected to the inside of one side of the positioning sleeve, with one end of the screw inserted into the corresponding positioning hole. The bottom of the positioning sleeve fits against the adjacent tool disc. By inserting it into the positioning hole at the corresponding position, the positioning sleeve is fixed on the tool holder, thereby locking the position of the tool disc.

[0006] Preferably, the other end of the screw is provided with a hexagonal groove. When it is necessary to rotate the screw, a hexagonal wrench can be inserted into the hexagonal groove and the screw can be rotated by turning the hexagonal wrench to realize the insertion or separation of the screw from the positioning hole.

[0007] Preferably, the tool holder has an injection hole inside, which runs through the tool holder from top to bottom. The injection hole serves as a channel for delivering coolant, ensuring that the coolant can accurately reach the cutting area.

[0008] Preferably, the baffle and the bottom of the tool holder are integrally formed, which ensures the connection strength and stability between the baffle and the tool holder.

[0009] Preferably, the top of the convex rib is chamfered, which guides and buffers the installation of the cutter head.

[0010] Preferably, the blade is made of PCD material, which utilizes the high hardness and high wear resistance of PCD material to improve the service life and cutting performance of the blade.

[0011] Compared with the prior art, the advantages of this utility model are as follows:

[0012] 1. This utility model allows for flexible adjustment and stacking of the cutter heads, enabling side milling cutters to quickly and conveniently change their cutting width according to different processing requirements. When dealing with workpieces of different specifications and processing requirements, it is not necessary to replace the entire tool; simply increasing or decreasing the number of cutter heads is sufficient to adjust the cutting width. This improves the versatility and applicability of the tools and reduces the time and cost of frequently changing tools when processing different workpieces.

[0013] 2. This utility model achieves the positioning and fixing of the cutter head through the cooperation of the positioning sleeve, screw and equidistant positioning holes. The bottom of the positioning sleeve fits against the adjacent cutter head, and the screw is inserted into the positioning hole at the corresponding position, which can effectively prevent the cutter head from moving axially during the cutting process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the knife handle structure of this utility model.

[0016] Figure 3 This is a schematic diagram showing the disassembled cutter head and positioning sleeve of this utility model.

[0017] Reference numerals in the attached diagram: 1. Handle; 2. Baffle; 3. Cutting disc; 4. Cutting edge; 5. Collar; 6. Raised rib; 7. Groove; 8. Positioning hole; 9. Positioning sleeve; 10. Screw; 11. Hexagonal groove; 12. Injection hole. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 3This embodiment provides a segmented PCD forming side milling cutter, including a cutter holder 1, a baffle 2 at the bottom of the cutter holder 1, and a plurality of cutter discs 3 slidably connected to the outside of the cutter holder 1. The outer ring of the cutter discs 3 is provided with cutting edges 4 at equal intervals, and a ring-shaped collar 5 extending upward at the top center of the cutter discs 3. The plurality of cutter discs 3 are stacked on the cutter holder 1. When stacked, the cutting edges 4 of adjacent cutter discs 3 are in contact with each other, and the collar 5 of the lower cutter disc 3 is in contact with the bottom of the upper cutter disc 3. The outside of the cutter holder 1 is provided with a protrusion 6, and the inner wall of the cutter disc 3 is provided with a groove 7. The groove 7 is slidably connected to the outside of the protrusion 6.

[0020] During cutting, the tool holder 1 is rotated by the machine tool. Since the protrusion 6 on the outer side of the tool holder 1 is slidably connected to the groove 7 on the inner wall of the cutter head 3, the protrusion 6 will drive the cutter head 3 to rotate together. At this time, the cutting edges 4, which are equidistantly arranged on the outer ring of the cutter head 3, will cut the workpiece. In actual processing, the number of cutter heads 3 on the tool holder 1 can be flexibly adjusted according to different cutting width requirements. When a wider cutting width is required, the number of cutter heads 3 is increased and stacked on the tool holder 1 in sequence. When a narrower cutting width is required, the number of cutter heads 3 is reduced. During the rotation, the cutting edges 4, which are equidistantly arranged on the outer ring of the cutter head 3, will cut the workpiece, thereby realizing the processing of different cutting widths.

[0021] The tool holder 1 has equidistant positioning holes 8 on one side, and a positioning sleeve 9 is slidably connected to the outside of the tool holder 1. A screw 10 is rotatably connected to the inside of the positioning sleeve 9, and one end of the screw 10 is inserted into the corresponding positioning hole 8. The bottom of the positioning sleeve 9 is in contact with the adjacent tool disc 3.

[0022] After adjusting the number of cutter heads 3 according to different cutting width requirements and completing the stacking, move the positioning sleeve 9 to a suitable position so that its bottom fits against the adjacent cutter head 3. Since the positioning holes 8 are equidistantly opened, the screw 10 can be inserted into the corresponding positioning hole 8 according to the number of cutter heads 3 and the stacking position, thereby fixing the positioning sleeve 9 on the tool holder 1, realizing the locking of the position of the cutter head 3, and preventing the cutter head 3 from moving axially during the cutting process.

[0023] The other end of the screw 10 is provided with a hexagonal groove 11. When it is necessary to rotate the screw 10, a hexagonal wrench can be inserted into the hexagonal groove 11 and the screw 10 can be rotated by turning the hexagonal wrench to realize the insertion or separation of the screw 10 and the positioning hole 8, thereby completing the fixing or loosening operation of the positioning sleeve 9.

[0024] The tool holder 1 has an injection hole 12 inside, which runs through the tool holder 1 from top to bottom. Coolant can be injected into the cutting area through the injection hole 12. The coolant flows from the top to the bottom of the tool holder 1 along the injection hole 12 and directly reaches the cutting part to cool the cutting edge 4 and the workpiece and reduce the cutting temperature.

[0025] The baffle 2 and the bottom of the tool holder 1 are integrally formed. When the tool disc 3 slides to the bottom of the tool holder 1, the integrally formed baffle 2 can naturally prevent the tool disc 3 from continuing to slide down, thus playing a role in axial limiting.

[0026] The top of the protruding rib 6 is chamfered, which serves as a guide, allowing the groove 7 to slide into the protruding rib 6 more smoothly and reducing resistance during installation.

[0027] The cutting edge 4 is made of PCD material. The high hardness of PCD material allows the cutting edge 4 to remain sharp and not easily worn during high-speed cutting.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A segmented PCD forming side mill comprising a shank (1), characterised in that, The bottom of the handle (1) is provided with a baffle (2), and a number of cutter discs (3) are slidably connected to the outside of the handle (1). The outer ring of the cutter disc (3) is provided with blades (4) at equal intervals. The top center of the cutter disc (3) is provided with an annular upward extending collar (5). The cutter discs (3) are stacked on the handle (1). When stacked, the blades (4) of adjacent cutter discs (3) are in contact with each other, and the collar (5) of the lower cutter disc (3) is in contact with the bottom of the upper cutter disc (3). The outside of the handle (1) is provided with a protrusion (6), and the inner wall of the cutter disc (3) is provided with a groove (7). The groove (7) is slidably connected to the outside of the protrusion (6).

2. The segmented PCD forming side mill of claim 1, wherein, The tool holder (1) has equidistant positioning holes (8) on one side. A positioning sleeve (9) is slidably connected to the outside of the tool holder (1). A screw (10) is rotatably connected to the inside of the positioning sleeve (9). One end of the screw (10) is inserted into the corresponding positioning hole (8). The bottom of the positioning sleeve (9) is in contact with the adjacent tool disc (3).

3. The segmented PCD forming side mill according to claim 2, wherein, The other end of the screw (10) is provided with a hexagonal groove (11).

4. The segmented PCD forming side mill of claim 1, wherein, The inside of the handle (1) is provided with a liquid injection hole (12), which extends from top to bottom through the handle (1).

5. The segmented PCD forming side mill of claim 1, wherein, The baffle (2) and the bottom of the handle (1) are integrally formed.

6. The segmented PCD forming side end mill according to claim 1, characterized in that, The top of the protruding rib (6) is chamfered.

7. The segmented PCD forming side mill of claim 1, wherein, The blade (4) is made of PCD material.

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