Milling cutter with milling cutter edge convenient to replace

Abstract

The utility model relates to the technical field of milling cutters, and discloses a milling cutter convenient to replace a milling blade, which comprises a milling cutter arbor, an internal spline I is fixedly connected to the bottom end of the milling cutter arbor, a replacement mechanism is arranged on the outer side of the internal spline I, a reinforcing mechanism is arranged on one side of the replacement mechanism, a blade is arranged at the bottom of the replacement mechanism, and the replacement mechanism comprises a fixing frame. The fixing frame is fixedly connected to the outer side of the first internal spline, and the side, away from the first internal spline, of the fixing frame is fixedly connected with a right-angle plate. According to the milling cutter with the milling blade convenient to replace, through the arranged replacement mechanism, the first external spline can be pulled out from the interior of the first internal spline, the purpose of detaching the blade can be achieved, similarly, the purpose of installing the blade can also be achieved, when the blade needs to be replaced, the original welding connection does not need to be damaged by means of professional equipment and technology, and the replacement cost is reduced. And meanwhile, operators are not required to have rich welding knowledge and skills, a large amount of consumed time is reduced, the operation efficiency is improved, the cost risk is reduced, and the flexible performance of the device is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, specifically to a milling cutter with easily replaceable cutting edges. Background Technology

[0002] Milling cutters are widely used cutting tools in machining and play an extremely important role in the field of metal processing.

[0003] End mills are typically made of materials such as high-speed steel or cemented carbide, possessing high hardness and wear resistance to ensure they can withstand enormous pressure and friction during cutting while maintaining good cutting performance. They come in a variety of shapes and structures, with common types including cylindrical end mills, face mills, end mills, and ball end mills.

[0004] Many milling cutters use a welded connection between the cutting edge and the cutter body. When the cutting edge needs to be replaced, specialized equipment and processes must be used to break the original welded connection. This not only requires operators to have extensive welding knowledge and skills, but also requires a lot of time for equipment preparation, preheating, cutting, and subsequent cleaning. Moreover, the slightest carelessness during this process may damage the cutter body, causing the entire milling cutter to be scrapped, increasing cost risks and reducing the flexibility of the equipment. Utility Model Content

[0005] The purpose of this invention is to provide a milling cutter with easily replaceable cutting edges to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a milling cutter that facilitates the replacement of milling cutter blades, comprising a milling cutter shank, an internal spline fixedly connected to the bottom end of the milling cutter shank, a replacement mechanism provided on the outer side of the internal spline, a reinforcing mechanism provided on one side of the replacement mechanism, and a cutting edge provided at the bottom of the replacement mechanism;

[0007] The replacement mechanism includes a fixed frame, which is fixedly connected to the outside of the inner spline. A right-angle plate is fixedly connected to the side of the fixed frame away from the inner spline. A threaded rod is rotatably connected inside the right-angle plate. A threaded plate is threadedly connected to the outer wall of the threaded rod. A locking block is fixedly connected to one side of the threaded plate. A support base is fixedly connected to the outer wall of the inner spline. A fixed block is fixedly connected to the outside of the blade. A movable plate is fixedly connected to the top of the fixed block. An outer spline is fixedly connected to the top of the blade.

[0008] Preferably, the threaded rod is rotatably connected to the side of the support base away from the inner spline, and a torsion sleeve is fixedly connected to the end of the threaded rod away from the support base, so as to facilitate the rotation of the threaded rod through the torsion sleeve.

[0009] Preferably, the threaded plate has a sliding opening inside, and the threaded plate is slidably connected to the outside of the right-angle plate through the sliding opening to limit the movement of the threaded plate.

[0010] Preferably, the movable plate is movably connected to the inner side of the fixed frame, and the outer spline engages with the inner ring of the inner spline to support and limit the cutting edge.

[0011] Preferably, the fixed frame has a movable opening on the side away from the inner spline, and the card block passes through the movable opening and moves, so that the card block can move through the movable opening.

[0012] Preferably, the movable plate has a slot on its outer side, and the locking block is movably connected to the inner wall of the slot, so that the locking block can limit the movable plate through the slot.

[0013] Preferably, the reinforcement mechanism includes a fixing groove, which is fixedly connected to the outer side of the inner spline one. A spring is fixedly connected to the inner wall of the fixing groove. A slider is fixedly connected to the end of the spring away from the fixing groove. A connecting block is fixedly connected to one side of the slider. A push shaft is fixedly connected to the side of the slider away from the connecting block. An inner spline two is fixedly connected to the side of the connecting block away from the slider. The inner ring of the inner spline two engages with the outer spline two. This mechanism achieves disassembly while also possessing good stability.

[0014] Preferably, the slider is slidably connected to the inner wall of the fixed groove, and a slot is provided on one side of the fixed groove. The push shaft passes through the slot and moves, so that the push shaft can move through the slot.

[0015] Preferably, a movable opening is provided on one side of the fixed groove, the second external spline is fixedly connected to the outer wall of the threaded rod, and the connecting block passes through the movable opening, so that the connecting block can be moved through the movable opening.

[0016] Compared with the prior art, this utility model provides a milling cutter that facilitates the replacement of milling cutter edges, and has the following beneficial effects:

[0017] This milling cutter, which facilitates the replacement of milling cutter edges, allows the outer spline to be pulled out from the inner spline through a designed replacement mechanism, thus enabling the removal and installation of the cutting edge. When the cutting edge needs to be replaced, there is no need to use specialized equipment and processes to damage the original welded connection. At the same time, it does not require operators to have extensive welding knowledge and skills, reducing the time spent, improving operational efficiency, lowering cost risks, and enhancing the flexibility of the device.

[0018] This milling cutter, which facilitates the replacement of the milling cutter edge, has a reinforced mechanism that allows for further disassembly of the cutting edge. At the same time, the meshing action of the two external splines and two internal splines enables disassembly of the cutting edge while maintaining good stability, allowing the cutting edge to perform its work better. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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.

[0020] Figure 1 This is a front view of the structure of this utility model;

[0021] Figure 2 This is a left view of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure at the blade edge;

[0023] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the slider structure;

[0025] Figure 6 This is a schematic diagram of the structure at the threaded plate.

[0026] In the diagram: 1. Milling cutter bar; 2. Cutting edge; 3. Internal spline one; 4. Changing mechanism; 41. Fixing frame; 42. Right angle plate; 43. Threaded rod; 44. Threaded plate; 45. Locking block; 46. Support base; 47. Movable plate; 48. Fixing block; 49. External spline one; 5. Reinforcing mechanism; 51. Fixing groove; 52. Spring; 53. Slider; 54. Connecting block; 55. Internal spline two; 56. Push shaft; 57. External spline two. Detailed Implementation

[0027] 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.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] This utility model provides the following technical solution: Example

[0030] Combination Figures 1 to 6 A milling cutter with easy-to-replace milling cutter edge includes a milling cutter shank 1, an internal spline 3 fixedly connected to the bottom end of the milling cutter shank 1, a replacement mechanism 4 provided on the outside of the internal spline 3, a reinforcing mechanism 5 provided on one side of the replacement mechanism 4, and a cutting edge 2 provided at the bottom of the replacement mechanism 4.

[0031] The replacement mechanism 4 includes a fixed frame 41, which is fixedly connected to the outside of the inner spline 3. A right-angle plate 42 is fixedly connected to the side of the fixed frame 41 away from the inner spline 3. A threaded rod 43 is rotatably connected inside the right-angle plate 42. A threaded plate 44 is threadedly connected to the outer wall of the threaded rod 43. A locking block 45 is fixedly connected to one side of the threaded plate 44. A support base 46 is fixedly connected to the outer wall of the inner spline 3. A fixed block 48 is fixedly connected to the outside of the blade 2. A movable plate 47 is fixedly connected to the top of the fixed block 48. An outer spline 49 is fixedly connected to the top of the blade 2.

[0032] Furthermore, the threaded rod 43 is rotatably connected to the side of the support base 46 away from the inner spline 3, and a torsion sleeve is fixedly connected to the end of the threaded rod 43 away from the support base 46, so that the threaded rod 43 can be rotated through the torsion sleeve.

[0033] Furthermore, the threaded plate 44 has a sliding opening inside, and the threaded plate 44 is slidably connected to the outside of the right angle plate 42 through the sliding opening to limit the movement of the threaded plate 44.

[0034] Furthermore, the movable plate 47 is movably connected to the inside of the fixed frame 41, and the outer spline 49 engages with the inner ring of the inner spline 3 to support and limit the blade 2.

[0035] Furthermore, a movable opening is provided on the side of the fixed frame 41 away from the inner spline 3, and the locking block 45 passes through the movable opening and moves, so that the locking block 45 can move through the movable opening.

[0036] Furthermore, a slot is provided on the outer side of the movable plate 47, and a locking block 45 is movably connected to the inner wall of the slot, so that the locking block 45 can limit the movable plate 47 through the slot. Example

[0037] See Figures 1 to 6 Furthermore, based on Embodiment 1, the reinforcement mechanism 5 further includes a fixing groove 51, which is fixedly connected to the outside of the inner spline 3. A spring 52 is fixedly connected to the inner wall of the fixing groove 51. A slider 53 is fixedly connected to the end of the spring 52 away from the fixing groove 51. A connecting block 54 is fixedly connected to one side of the slider 53. A push shaft 56 is fixedly connected to the side of the slider 53 away from the connecting block 54. An inner spline 55 is fixedly connected to the side of the connecting block 54 away from the slider 53. An outer spline 57 engages with the inner ring of the inner spline 55. While realizing the disassembly function, it also has good stability performance.

[0038] Furthermore, the slider 53 is slidably connected to the inner wall of the fixed groove 51. A slot is provided on one side of the fixed groove 51, and the push shaft 56 passes through the slot and moves, so that the push shaft 56 can move through the slot.

[0039] Furthermore, a movable opening is provided on one side of the fixed groove 51, and the external spline 57 is fixedly connected to the outer wall of the threaded rod 43. The connecting block 54 passes through the movable opening, so that the connecting block 54 can be moved through the movable opening.

[0040] In actual operation, when this device is used for a long time, if it is necessary to disassemble and replace the blade 2, the push shaft 56 can be moved first, so that the push shaft 56 can drive the slider 53 to move and compress the spring 52. The slider 53 can also drive the inner spline 2 55 to move through the connecting block 54, so that the inner spline 2 55 no longer meshes with the outer spline 2 57, and the limitation on the threaded rod 43 is removed, thus facilitating the further disassembly of the blade 2. At the same time, under the mutual meshing and cooperation of the outer spline 2 57 and the inner spline 2 55, the blade 2 can be disassembled while also achieving good stability, so that the blade 2 can work better.

[0041] After the rotation limit on the threaded rod 43 is removed, the torsion sleeve can be rotated to drive the threaded rod 43 to rotate. Since the threaded rod 43 and the threaded plate 44 are threadedly connected, and the threaded plate 44 can slide and limit the rotation on the outside of the right-angle plate 42, the rotational motion of the threaded rod 43 will be converted into the linear motion of the threaded plate 44. The threaded plate 44 can drive the locking block 45 to be pulled out from the inside of the movable plate 47, thus removing the limit on the movable plate 47. Then, the movable plate 47 can be pulled out from the inside of the fixed frame 41 through the blade 2 and the fixing block 48. At the same time, the outer spline 49 can be pulled out from the inside of the inner spline 3, thus achieving the disassembly of the blade 2. Similarly, the purpose of installing the blade 2 can also be achieved. When it is necessary to replace the blade 2, it is not necessary to use professional equipment and processes to damage the original welded connection. At the same time, it is not required that the operator has extensive welding knowledge and skills, reducing the time spent, improving operating efficiency, reducing cost risks, and enhancing the flexibility of the device.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A milling cutter with easily replaceable cutting edges, comprising a milling cutter shank (1), characterized in that: The end of the milling cutter bar (1) is fixedly connected to an internal spline (3), and a replacement mechanism (4) is provided on the outside of the internal spline (3). A reinforcing mechanism (5) is provided on one side of the replacement mechanism (4), and a cutting edge (2) is provided at the bottom of the replacement mechanism (4). The replacement mechanism (4) includes a fixed frame (41), which is fixedly connected to the outside of the inner spline (3). A right angle plate (42) is fixedly connected to the side of the fixed frame (41) away from the inner spline (3). A threaded rod (43) is rotatably connected inside the right angle plate (42). A threaded plate (44) is threadedly connected to the outer wall of the threaded rod (43). A locking block (45) is fixedly connected to one side of the threaded plate (44). A support seat (46) is fixedly connected to the outer wall of the inner spline (3). A fixing block (48) is fixedly connected to the outside of the blade (2). A movable plate (47) is fixedly connected to the top of the fixing block (48). An outer spline (49) is fixedly connected to the top of the blade (2).

2. The milling cutter with easily replaceable cutting edges according to claim 1, characterized in that: The threaded rod (43) is rotatably connected to the side of the support seat (46) away from the inner spline (3), and a torsion sleeve is fixedly connected to the end of the threaded rod (43) away from the support seat (46).

3. A milling cutter with easily replaceable cutting edges according to claim 1, characterized in that: The threaded rod (43) is rotatably connected to the side of the support seat (46) away from the inner spline (3), and a torsion sleeve is fixedly connected to the end of the threaded rod (43) away from the support seat (46).

4. A milling cutter with easily replaceable cutting edges according to claim 1, characterized in that: The movable plate (47) is movably connected to the inside of the fixed frame (41), and the outer spline (49) engages with the inner ring of the inner spline (3).

5. A milling cutter with easily replaceable cutting edges according to claim 1, characterized in that: The movable plate (47) is movably connected to the inside of the fixed frame (41), and the outer spline (49) engages with the inner ring of the inner spline (3).

6. A milling cutter with easily replaceable cutting edges according to claim 1, characterized in that: The movable plate (47) is movably connected to the inside of the fixed frame (41), and the outer spline (49) engages with the inner ring of the inner spline (3).

7. A milling cutter with easily replaceable cutting edges according to claim 1, characterized in that: The reinforcement mechanism (5) includes a fixing groove (51), which is fixedly connected to the outside of the inner spline one (3). A spring (52) is fixedly connected to the inner wall of the fixing groove (51). A slider (53) is fixedly connected to the end of the spring (52) away from the fixing groove (51). A connecting block (54) is fixedly connected to one side of the slider (53). A push shaft (56) is fixedly connected to the side of the slider (53) away from the connecting block (54). An inner spline two (55) is fixedly connected to the side of the connecting block (54) away from the slider (53). An outer spline two (57) is engaged in the inner ring of the inner spline two (55).

8. A milling cutter with easily replaceable cutting edges according to claim 7, characterized in that: The slider (53) is slidably connected to the inner wall of the fixed groove (51). A slot is opened on one side of the fixed groove (51), and the push shaft (56) passes through the slot and moves.

9. A milling cutter with easily replaceable cutting edges according to claim 7, characterized in that: A movable opening is provided on one side of the fixed groove (51), the second external spline (57) is fixedly connected to the outer wall of the threaded rod (43), and the connecting block (54) passes through the movable opening.

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