Three-edge milling cutter capable of quickly replacing cutter

Abstract

The utility model relates to the technical field of machining cutters, and discloses a three-edge milling cutter capable of rapidly replacing cutters, the three-edge milling cutter comprises a horizontal milling cutter handle and a cutter body, the horizontal milling cutter handle is sleeved with an abutting ring and a limiting piece, the cutter body is limited between the abutting ring and the limiting piece, the outer side wall of the horizontal milling cutter handle is provided with a guide groove in the axial direction of the horizontal milling cutter handle, and the guide groove is matched with the horizontal milling cutter handle. A guide groove is formed in the end of the horizontal milling cutter handle, a guide key is arranged on the inner side wall of the cutter body, located in the guide groove and in sliding fit with the guide groove, a guide head is coaxially arranged at the end of the horizontal milling cutter handle, a fixing column is connected between the guide head and the horizontal milling cutter handle, the limiting piece comprises a spring piece and a limiting ring, a kidney-shaped hole is formed in the limiting ring, and the spring piece is located in the kidney-shaped hole. The diameter of the guide head, the diameter of the limiting ring and the diameter of the horizontal milling cutter handle are the same, and a guide face is arranged on the side, facing the guide head, of the limiting ring. The three-edge milling device has the effect of improving the three-edge milling efficiency.

Description

Technical Field

[0001] This application relates to the field of machining tool technology, and in particular to a three-sided end mill with quick tool change capability. Background Technology

[0002] In the field of machining, the three-sided milling cutter (or simply three-sided milling cutter) is an important standard machine tool tool. Its main cutting edge is distributed on the cylindrical surface of the cutter, while the secondary cutting edges are distributed on the two end faces. All three cutting edges have a clearance angle, resulting in sharp edges and light, easy cutting. It is widely used in machining processes such as grooving and step forming. Three-sided milling cutters are typically used on horizontal milling machines and mounted on the tool holder, serving as a key tool for achieving high-efficiency machining. With the rapid development of the manufacturing industry, the requirements for machining efficiency and precision are increasing, making the ease of changing three-sided milling cutters a crucial factor affecting production efficiency. To meet modern machining needs, the industry is constantly exploring new connection methods to optimize the assembly process between the cutter and the tool holder.

[0003] To meet the need for frequent changes of three-sided cutting tools, the industry typically uses threaded rotary connections or quick-clamping methods to connect the tool to the tool holder. Threaded rotary connections achieve fastening by rotating the threads, requiring a complete tightening and loosening operation; quick-clamping methods rely on the mechanical force of the clamp to secure the tool to the tool holder, which significantly reduces clamping time.

[0004] However, the aforementioned conventional methods still have significant drawbacks in practical applications. While the threaded rotary connection method offers reliable connection, it requires a complete tightening and loosening process each time the tool is changed, and disassembly necessitates multiple rotations, which is time-consuming. Furthermore, if the tool holder drives the tool in reverse, the tool is prone to falling off, ultimately affecting the precision and efficiency of milling. Although the quick-clamping method shortens the clamping time, it demands extremely high tool dimensional accuracy and has limited clamping force. Over time, the clamping force tends to decrease, reducing the reliability and stability of three-sided milling and resulting in low machining efficiency. Utility Model Content

[0005] To improve the machining efficiency of three-sided milling, this application provides a three-sided milling cutter with quick tool change capability.

[0006] The three-sided end mill with quick-change tooling provided in this application adopts the following technical solution:

[0007] A quick-change three-sided milling cutter includes a horizontal milling shank and a cutter body sleeved on the horizontal milling shank. The horizontal milling shank is fitted with an abutment ring and a limiting member. The cutter body is constrained between the abutment ring and the limiting member. A guide groove is formed along its axial direction on the outer side wall of the horizontal milling shank. A guide key is formed along its axial direction on the inner side wall of the cutter body. The guide key is located within the guide groove and slides within it. A guide head is coaxially provided on the end of the horizontal milling shank extending beyond the cutter body. The guide head... A fixed post is coaxially connected between the horizontal milling cutter shanks. The limiting component includes a spring and a limiting ring sleeved on the fixed post. The limiting ring has an oblong hole that slides with the fixed post. The spring is located in the oblong hole and abuts against the fixed post and the limiting ring. The guide head, the limiting ring and the horizontal milling cutter shank have the same diameter. The limiting ring has a guide surface on the side facing the guide head. When the tool body is sleeved on the horizontal milling cutter shank and the spring is in its natural state, the tool body is pressed against the abutting ring and the limiting ring.

[0008] By adopting the above technical solution, the guide key of the tool body is first aligned with the guide groove on the horizontal milling cutter shank and slidably inserted along the axial direction until one end of the tool body abuts against the abutment ring. During this process, the tool body sequentially slides over the guide head and the limiting ring. When the limiting ring passes through the tool body, it compresses the spring component, causing it to slide towards the axis of the fixed post. After successfully passing through, the spring component returns to its natural state, pushing the limiting ring to tightly fit against the other end of the tool body, thereby firmly restricting the tool body between the abutment ring and the limiting ring. The cooperation between the guide key and the guide groove achieves circumferential positioning between the tool body and the horizontal milling cutter shank, while the clamping of the limiting ring and the abutment ring achieves axial fixation. This dual constraint significantly improves the stability of the tool body during high-speed rotation and cutting, effectively preventing tool loosening or falling off, thereby improving machining accuracy and reliability. Furthermore, when it is necessary to remove the tool body, only a pushing force needs to be applied to make the limiting ring overcome the elastic force of the spring and slide to the coaxial position with the horizontal milling cutter shank, so that the tool body can be quickly removed, which greatly simplifies the operation process and significantly improves the tool replacement efficiency.

[0009] Optionally, the spring component includes a fixed ring, a movable ring, and a spring plate connecting the fixed ring and the movable ring, all sleeved on the fixed post. The fixed ring is fixed on the fixed post, the movable ring is slidably sleeved on the fixed post, and the spring plate is U-shaped, with its protruding portion abutting against the inner wall of the waist-shaped hole of the limiting ring.

[0010] By adopting the above technical solution, when the limiting ring passes through the tool body, the spring plate is compressed, and the moving ring slides away from the fixed ring, thereby reducing the resistance force on the limiting ring. In this state, the limiting ring, with the help of the inclined structure of the guide surface, can smoothly slide along the axis of the fixed column and pass through the tool body. Once the limiting ring has completely passed through, the spring plate returns to its original shape, driving the moving ring back to its original position, and then pushing the limiting ring to fit tightly against the end of the tool body, ultimately achieving a stable restraint of the tool body between the abutment ring and the limiting ring. This design not only simplifies the tool assembly process but also significantly improves the efficiency and stability of tool change.

[0011] Optionally, the horizontal milling cutter holder is further provided with a positioning component. The outer wall of the horizontal milling cutter holder is provided with several grooves parallel to its own axis. The inner bottom wall of each groove is inclined in the direction towards the guide head, and the inclined surface is directed away from the axis of the horizontal milling cutter holder. The positioning component includes a drive rod that slides in the groove, a positioning block provided at the end of the drive rod, and an adjusting component for adjusting the moving position of the drive rod. The positioning block is hemispherical. The inner wall of the tool body is provided with a positioning groove corresponding to each positioning block. The positioning groove and the positioning block are one-to-one and interlocked.

[0012] By adopting the above technical solution, during installation, the tool body is first fitted onto the horizontal milling cutter shank. The circumferential positioning between the tool body and the shank is achieved through the sliding engagement of the guide groove and guide key, while axial fixation is achieved through the clamping of the limiting ring and the abutment ring. Subsequently, the adjusting component pushes the drive rod to move along the slide groove. The drive rod drives the hemispherical positioning block to slide along the inclined inner bottom wall of the slide groove, ultimately ensuring that the positioning block is precisely inserted into the positioning groove of the tool body. This achieves stable positioning of the tool body on the horizontal milling cutter shank, further improving the stability and reliability of the three-sided milling cutter during machining, and thus enhancing the overall machining accuracy.

[0013] Optionally, the adjusting component is a hand-driven rotating ring that is rotatably connected to the horizontal milling cutter shank via a thread. The end of each drive rod away from the positioning block is connected to the hand-driven rotating ring and is slidably arranged on the hand-driven rotating ring along the circumference of the hand-driven rotating ring. When the hand-driven rotating ring is rotated toward the tool body, the hand-driven rotating ring pushes several drive rods to slide synchronously toward the positioning groove. The positioning block is guided to move along the bottom wall of the inclined groove until it is inserted into the positioning groove.

[0014] By adopting the above technical solution, when the hand-driven rotating ring is rotated toward the tool body, the hand-driven rotating ring pushes multiple drive rods to move synchronously. The positioning blocks at the ends of the drive rods slide along the inclined surface of the bottom wall of the groove, and finally accurately insert into the positioning groove on the tool body. This method not only improves the positioning accuracy between the tool body and the horizontal milling shank, but also significantly shortens the tool change time and improves assembly efficiency.

[0015] Optionally, a stop plate is provided on the horizontal milling cutter shank between the abutment ring and the hand drive rotating ring. When the hand drive rotating ring is rotated toward the cutter body until it contacts the stop plate, the positioning block is inserted into the positioning groove. A positioning hole is provided between the hand drive rotating ring and the horizontal milling cutter shank, and a screw is rotatably connected in the positioning hole by a thread.

[0016] By adopting the above technical solution, when the hand-driven rotary ring contacts the stop plate, the positioning block can be accurately inserted into the positioning groove, thereby achieving precise positioning and fixation of the tool body. The hand-driven rotary ring and the horizontal milling cutter shank are connected by screws, further enhancing the structural stability and reducing the possibility of tool body loosening during machining. This not only improves the convenience of tool replacement but also enhances the reliability and machining accuracy of the three-sided milling cutter at high speeds.

[0017] Optionally, the tool body is fitted with two cutting heads, which are distributed at both ends of the tool body along the axial direction.

[0018] By adopting the above technical solution, firstly, the dual cutting heads perform cutting operations simultaneously, which can remove more material in the same amount of time compared to the traditional single-cutting-head structure, thus effectively improving processing efficiency. Secondly, since the two cutting heads are symmetrically distributed on both sides of the tool, a balanced distribution of force can be achieved during the cutting process, greatly reducing tool vibration and ensuring a smoother machining process, thereby improving machining accuracy.

[0019] Optionally, the cutting edges of the two cutter heads are arranged in an alternating pattern.

[0020] By adopting the above technical solution, the staggered arrangement of the cutting edges of the two tool heads can form a multi-directional chip flow path during the cutting process, effectively guiding the chips to disperse and be discharged, significantly reducing the possibility of chip accumulation in the machining area and the possibility of chips wrapping around the tool or workpiece, thereby improving the stability of the machining process. At the same time, the staggered arrangement of the cutting edges can also reduce local high temperatures and friction caused by chip clogging, thereby alleviating excessive tool wear, extending tool life, and improving overall machining efficiency and quality.

[0021] Optionally, the tool body has several through holes parallel to the axial direction, and the through holes are evenly distributed along the circumference of the tool body.

[0022] By adopting the above technical solution, the several through holes on the tool body can effectively reduce the overall weight of the tool, thereby reducing inertia during operation and making operation more flexible and convenient. At the same time, these through holes can also serve as channels for cooling water circulation, providing cooling for the tool head during cutting and reducing the possibility of accelerated tool wear or reduced workpiece machining accuracy due to excessive temperature.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. First, align the guide key of the tool body with the guide groove on the horizontal milling cutter shank and slide it axially until one end of the tool body abuts against the retaining ring. During this process, the tool body slides past the guide head and the limiting ring in sequence. As the limiting ring passes through the tool body, it compresses the spring, causing it to slide towards the axis of the fixed post. After successfully passing through, the spring returns to its natural state, pushing the limiting ring to tightly fit the other end of the tool body, thus firmly restricting the tool body between the retaining ring and the abutting ring. The cooperation between the guide key and the guide groove achieves circumferential positioning between the tool body and the horizontal milling cutter shank, while the clamping of the limiting ring and the abutting ring achieves axial fixation. This dual constraint significantly improves the stability of the tool body during high-speed rotation and cutting, effectively preventing tool loosening or falling off, thereby improving machining accuracy and reliability. In addition, when it is necessary to remove the tool body, simply apply a pushing force to make the limiting ring overcome the spring force and slide to a position coaxial with the horizontal milling cutter shank, and the tool body can be quickly removed, greatly simplifying the operation process and significantly improving tool change efficiency.

[0025] 2. When the limiting ring passes through the tool body, the spring plate is compressed, and the moving ring slides away from the fixed ring, thereby reducing the resistance to the limiting ring. In this state, the limiting ring, with the help of the inclined structure of the guide surface, can smoothly slide along the axis of the fixed column and pass through the tool body. Once the limiting ring has completely passed through, the spring plate returns to its original shape, driving the moving ring back to its original position, and then pushing the limiting ring to fit tightly against the end of the tool body, ultimately achieving a stable restraint of the tool body between the abutment ring and the limiting ring. This design not only simplifies the tool assembly process but also significantly improves the efficiency and stability of tool change.

[0026] 3. During installation, the tool body is first fitted onto the horizontal milling cutter shank. The sliding engagement of the guide groove and guide key achieves circumferential positioning between the tool body and the shank, while the clamping of the limiting ring and abutment ring provides axial fixation. Subsequently, the adjusting component pushes the drive rod along the slide groove. The drive rod causes the hemispherical positioning block to slide along the inclined inner bottom wall of the slide groove, ultimately ensuring the positioning block is precisely inserted into the positioning groove of the tool body. This achieves stable positioning of the tool body on the horizontal milling cutter shank, further improving the stability and reliability of the three-sided milling cutter during machining, thereby enhancing overall machining accuracy. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2This is a cross-sectional view illustrating the connection relationship between the horizontal milling cutter holder and the cutter body in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Horizontal milling cutter holder; 11. Guide groove; 12. Slide groove; 2. Tool body; 21. Tool tip; 22. Through hole; 23. Guide key; 24. Positioning groove; 3. Abutment ring; 4. Limiting component; 41. Spring component; 411. Fixed ring; 412. Moving ring; 413. Spring plate; 42. Limiting ring; 421. Waist-shaped hole; 5. Positioning assembly; 51. Drive rod; 52. Positioning block; 53. Adjusting component; 531. Positioning hole; 6. Guide head; 7. Fixed post; 8. Abutment plate; 9. Screw. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-2 This application will be described in further detail.

[0032] This application discloses a three-sided end mill with quick tool change capability.

[0033] Reference Figure 1 and Figure 2 A quick-change three-sided milling cutter includes a horizontal milling shank 1 and a cutter body 2. The horizontal milling shank 1 is cylindrical, and the cutter body 2 is cylindrical and slidably sleeved on the horizontal milling shank 1. An abutment ring 3 is fixedly sleeved on the horizontal milling shank 1, and a limit member 4 and a positioning component 5 are also provided. The cutter body 2 is restricted between the abutment ring 3 and the limit member 4, and the positioning component 5 is used to lock the cutter body 2 and the horizontal milling shank 1.

[0034] Reference Figure 1 Two cutting heads 21 are fixedly mounted on the tool body 2. The two cutting heads 21 are distributed at both ends of the tool body 2 along the axial direction, and the cutting edges of the two cutting heads 21 are arranged in an alternating manner. In order to reduce the weight of the tool body 2 and facilitate the flow of coolant, several through holes 22 parallel to the axial direction are opened on the tool body 2. The several through holes 22 are evenly distributed along the circumference of the tool body 2.

[0035] Reference Figure 1 The outer side wall of the horizontal milling cutter shank 1 is provided with a guide groove 11 along its own axis, and the inner side wall of the cutter body 2 is integrally formed with a guide key 23 along its own axis. The guide key 23 is located in the guide groove 11 and slides with the guide groove 11.

[0036] Reference Figure 1 and Figure 2A guide head 6 is coaxially provided on the end of the horizontal milling cutter shank 1 extending from the cutter body 2. A fixed post 7 is fixedly connected to the guide head 6 and the horizontal milling cutter shank 1, and the limiting member 4 includes a spring member 41 and a limiting ring 42. The limiting ring 42 is sleeved on the fixed post 7, and the limiting ring 42 has a waist-shaped hole 421 that slides with the fixed post 7 in the radial direction. In this embodiment, the spring member 41 includes a fixed ring 411, a movable ring 412, and a spring plate 413. The fixed ring 411 is fixedly sleeved on the end of the fixed post 7 away from the guide head 6, the movable ring 412 is slidably sleeved on the fixed post 7, and the spring plate 413 is U-shaped. Its ends are fixedly connected to the fixed ring 411 and the movable ring 412 respectively, and its protruding part abuts against the inner end wall of the waist-shaped hole 421 of the limiting ring 42. The limiting ring 42 has a guide surface on the side facing the guide head 6, which adopts a bevel design to facilitate the quick installation of the cutter body 2.

[0037] Reference Figure 1 and Figure 2 The outer side wall of the horizontal milling cutter shank 1 is provided with several grooves 12 parallel to its own axis. In this embodiment, four grooves are used as an example. The four grooves 12 are evenly distributed on the outer peripheral side wall of the horizontal milling cutter shank 1. The inner bottom wall of each groove 12 is inclined at an angle of 5°-10°, facing away from the axis of the horizontal milling cutter shank 1, so as to play a guiding role.

[0038] Reference Figure 2 The positioning assembly 5 includes a drive rod 51, a positioning block 52, and an adjusting component 53. The drive rod 51 slides within the slide groove 12 and is made of high-strength spring steel. The positioning block 52 is hemispherical and fixedly mounted on the end facing the inclined side. A positioning groove 24 is provided on the inner wall of the tool body 2 corresponding to each positioning block 52, and the positioning grooves 24 correspond one-to-one with the positioning blocks 52 and are interlocked.

[0039] Reference Figure 1 and Figure 2 In this embodiment, the adjusting member 53 is a hand-driven rotating ring, which is connected to the horizontal milling cutter shank 1 by a threaded rotation. The ends of the four driving rods 51 are all connected and installed on the hand-driven rotating ring, and can slide in the circumferential direction of the hand-driven rotating ring.

[0040] Reference Figure 1 In order to further improve the installation stability of the horizontal milling cutter holder 1 and the tool body 2, a stop plate 8 is fixedly installed on the horizontal milling cutter holder 1. The stop plate 8 is located between the abutment ring 3 and the hand drive rotating ring. When the hand drive rotating ring rotates to abut against the stop plate 8, a positioning hole 531 is provided between the hand drive rotating ring and the horizontal milling cutter holder 1, and a screw 9 is connected to the positioning hole 531 by a threaded rotation.

[0041] The implementation principle of a quick-change three-sided milling cutter according to an embodiment of this application is as follows: During the installation of the cutter body 2 onto the horizontal milling cutter shank 1, the guide key 23 of the cutter body 2 is first aligned with the guide groove 11 on the horizontal milling cutter shank 1, and then slidably inserted axially until one end of the cutter body 2 abuts against the abutment ring 3. During this process, the cutter body 2 sequentially slides past the guide head 6 and the limiting ring 42. When the limiting ring 42 passes through the cutter body 2, it compresses the spring plate 413, causing the limiting ring 42 to slide towards the axis of the fixed post 7. After successfully passing through, the spring plate 413 returns to its natural state, pushing the limiting ring 42 to tightly fit against the other end of the cutter body 2, thereby firmly restricting the cutter body 2 between the abutment ring 3 and the limiting ring 42.

[0042] Then, the hand-drive rotating ring is rotated toward the tool body 2. The hand-drive rotating ring pushes multiple drive rods 51 to move synchronously. The positioning block 52 at the end of the drive rod 51 is guided to slide along the inclined surface of the bottom wall of the slide groove 12 until the hand-drive rotating ring abuts against the abutment plate 8. At this time, the positioning block 52 on the drive rod 51 is finally precisely inserted into the positioning groove 24 on the tool body 2.

[0043] Finally, screws 9 are used to pass through the positioning hole 531 to connect and fix the hand-driven swivel ring to the horizontal milling cutter shank 1, reducing the possibility of the tool body 2 loosening during machining. This not only improves the convenience of tool replacement but also enhances the reliability and machining accuracy of the three-sided milling cutter at high speeds.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-change three-sided milling cutter, comprising a horizontal milling shank (1) and a cutter body (2) sleeved on the horizontal milling shank (1), characterized in that... The horizontal milling cutter holder (1) is fitted with an abutment ring (3) and a limiting member (4). The cutter body (2) is constrained between the abutment ring (3) and the limiting member (4). A guide groove (11) is formed on the outer side wall of the horizontal milling cutter holder (1) along its own axial direction. A guide key (23) is formed on the inner side wall of the cutter body (2) along its own axial direction. The guide key (23) is located in the guide groove (11) and slides with the guide groove (11). A guide head (6) is coaxially provided on the end of the horizontal milling cutter holder (1) extending out of the cutter body (2). A fixed post (7) is coaxially arranged between the guide head (6) and the horizontal milling cutter holder (1). The limiting member (4) Includes a spring (41) and a limiting ring (42) sleeved on a fixed post (7). The limiting ring (42) has a waist-shaped hole (421) that slides with the fixed post (7). The spring (41) is located inside the waist-shaped hole (421) and abuts against the fixed post (7) and the limiting ring (42). The guide head (6), the limiting ring (42) and the horizontal milling cutter shank (1) have the same diameter. The limiting ring (42) has a guide surface on the side facing the guide head (6). When the tool body (2) is sleeved on the horizontal milling cutter shank (1) and the spring (41) is in its natural state, the tool body (2) abuts against the abutting ring (3) and the limiting ring (42).

2. A three-sided end mill with quick-change tooling according to claim 1, characterized in that... The spring member (41) includes a fixed ring (411) sleeved on the fixed post (7), a movable ring (412) and a spring plate (413) connecting the fixed ring (411) and the movable ring (412). The fixed ring (411) is fixed on the fixed post (7), the movable ring (412) is slidably sleeved on the fixed post (7), and the spring plate (413) is U-shaped, with its protruding part abutting against the inner end wall of the waist-shaped hole (421) of the limiting ring (42).

3. A three-sided end mill with quick-change tooling according to claim 1, characterized in that... The horizontal milling cutter holder (1) is also provided with a positioning component (5). The outer side wall of the horizontal milling cutter holder (1) is provided with a number of sliding grooves (12) parallel to its own axis. The inner bottom wall of each sliding groove (12) is inclined in the direction towards the guide head (6), and the inclined surface is set in the direction away from the axis of the horizontal milling cutter holder (1). The positioning component (5) includes a drive rod (51) that slides in the sliding groove (12), a positioning block (52) set at the end of the drive rod (51), and an adjusting component (53) for adjusting the moving position of the drive rod (51). The positioning block (52) is hemispherical. The inner side wall of the tool body (2) is provided with a positioning groove (24) corresponding to each positioning block (52). The positioning groove (24) and the positioning block (52) are in one-to-one correspondence and interlocking.

4. A three-sided end mill with quick-change tooling according to claim 3, characterized in that... The adjusting component (53) is a hand-driven rotating ring that is rotatably connected to the milling cutter holder (1) by a thread. The end of each driving rod (51) away from the positioning block (52) is connected to the hand-driven rotating ring and is slidably arranged on the hand-driven rotating ring along the circumference of the hand-driven rotating ring. When the hand-driven rotating ring is rotated toward the tool body (2), the hand-driven rotating ring pushes several driving rods (51) to slide synchronously toward the positioning groove (24). The positioning block (52) is guided to move along the bottom wall of the inclined slide groove (12) until it is inserted into the positioning groove (24).

5. A three-sided end mill with quick-change tooling according to claim 4, characterized in that... A stop plate (8) is provided on the horizontal milling cutter holder (1) between the abutment ring (3) and the hand drive rotating ring. When the hand drive rotating ring is rotated toward the cutter body (2) until the hand drive rotating ring abuts against the stop plate (8), the positioning block (52) is inserted into the positioning groove (24). A positioning hole (531) is provided between the hand drive rotating ring and the horizontal milling cutter holder (1), and a screw (9) is connected to the positioning hole (531) by a threaded rotation.

6. A three-sided end mill with quick-change tooling according to claim 1, characterized in that... The tool body (2) is fitted with two tool heads (21), which are distributed at both ends of the tool body (2) along the axial direction.

7. A three-sided end mill with quick-change tooling according to claim 6, characterized in that... The cutting edges of the two cutter heads (21) are arranged in an alternating pattern.

8. A three-sided end mill with quick-change tooling according to claim 1, characterized in that... The tool body (2) has several through holes (22) parallel to the axial direction, and the through holes (22) are evenly distributed along the circumference of the tool body (2).

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