Novel bevel milling cutter

Abstract

The utility model relates to the field of bevel milling cutters, in particular to a novel bevel milling cutter. Comprising a tool bit and a tool bar, and a bearing bar is arranged on the side, opposite to the tool bar, of the tool bit; a bearing assembly is arranged on the bearing rod and comprises a bearing; the cutter bar comprises a first cutter bar and a second cutter bar, one end of the first cutter bar is connected with the cutter head, the other end is provided with an insertion hole, the inner wall of the insertion hole is provided with a clamping groove, and a ratchet wheel is arranged in the clamping groove; an inserting part is arranged at one end of the second cutter bar, the inserting part is inserted into the inserting hole, a pawl matched with the ratchet wheel is arranged on the peripheral side of the inserting part, and a dismounting curved surface used for dismounting is arranged on the side, away from the first cutter bar, of the pawl; according to the utility model, when the milling cutter rotates reversely due to misoperation, the blade is prevented from being in hard contact with a material, and the milling cutter is prevented from being damaged by collision.

Description

Technical Field

[0001] The utility model relates to the field of bevel milling cutters, in particular to a novel bevel milling cutter. Background Art

[0002] The new angled milling cutter is a tool used for milling, with a specific geometry and angle design to suit different cutting requirements. It is commonly used in the metal processing and manufacturing industries and can effectively process a variety of complex contours and shapes.

[0003] The cutter head of an angled milling cutter is usually designed at an angle, and the angle between the cutting edge and the workpiece surface can improve cutting efficiency.

[0004] High-speed steel, carbide or coated tools are generally used to improve wear resistance and extend service life.

[0005] Bevel milling cutters are usually installed on a driving device, such as an electric drill, which is usually reversible. When the bevel milling cutter is reversed, it is easy to collide and crack the blade.

[0006] Therefore, there is an urgent need to provide an improved technical solution to solve the above technical problems. Utility Model Content

[0007] The purpose of the utility model is to solve the above-mentioned technical problems and provide a new bevel milling cutter that can prevent damage from reverse rotation.

[0008] In view of this, the utility model provides a novel bevel milling cutter, comprising a cutter head and a cutter bar, wherein a bearing rod is provided on a side of the cutter head opposite to the cutter bar;

[0009] A bearing assembly is provided on the bearing rod, and the bearing assembly includes a bearing;

[0010] The knife bar includes a first knife bar and a second knife bar. One end of the first knife bar is connected to the knife head, and the other end is provided with a socket. The inner wall of the socket is provided with a slot, and a ratchet is provided in the slot.

[0011] One end of the second cutter bar is provided with an inserting portion, which is inserted into the inserting hole, and a pawl cooperating with the ratchet is provided on the outer peripheral side of the inserting portion, and a disassembly curved surface for disassembly is provided on the side of the pawl away from the first cutter bar.

[0012] Furthermore, the bearing is a ball bearing.

[0013] Furthermore, the outer diameter of the bearing is equal to the diameter of the tool shank.

[0014] Furthermore, the bearing assembly includes:

[0015] A supporting plate, the supporting plate is fixed on the bearing rod;

[0016] A first fixing ring is disposed between the supporting plate and the stationary ring of the bearing;

[0017] A second fixing ring is provided on a side of the bearing opposite to the first fixing ring and contacts the stationary ring of the bearing;

[0018] A fixing screw is threadedly connected to the bearing rod and abuts against the second fixing ring.

[0019] Furthermore, it also includes:

[0020] The escape ring is sleeved on the inserting portion, and one end of the escape ring abuts against the disassembly curved surface, and the escape ring can slide along the axial direction of the knife rod.

[0021] The beneficial effects of the utility model are:

[0022] 1. The utility model can prevent the blade from making hard contact with the material and prevent collision and damage when the milling cutter is reversed due to misoperation.

[0023] 2. In the present invention, when the release ring slides toward the pawl, the release ring can compress the pawl. When the ring is released, the pawl and the ratchet are separated, and then the second knife rod is pulled out, making disassembly smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the knife bar of the present utility model.

[0026] The marks in the figure are:

[0027] 1. Cutting head; 2. Cutting blade; 3. First cutting bar; 4. Second cutting bar; 5. Ball bearing; 6. Socket; 7. Ratchet; 8. Disassembly surface; 9. Support plate; 10. Ejection ring. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0029] Example 1:

[0030] This embodiment provides a novel bevel milling cutter, comprising a cutter head 1 and a cutter bar, wherein a bearing rod is provided on a side of the cutter head 1 opposite to the cutter bar;

[0031] A bearing assembly is provided on the bearing rod, and the bearing assembly includes a bearing;

[0032] The knife bar includes a first knife bar 3 and a second knife bar 4. One end of the first knife bar 3 is connected to the knife head 1, and the other end is provided with a socket 6. The inner wall of the socket 6 is provided with a slot, and a ratchet is provided in the slot.

[0033] One end of the second shank 4 is provided with an inserting portion, which is inserted into the inserting hole 6, and a pawl 7 cooperating with the ratchet is provided on the outer peripheral side of the inserting portion, and a disassembly curved surface 8 for disassembly is provided on the side of the pawl 7 away from the first shank 3.

[0034] The cutter head 1 includes a blade 2, which is tilted, usually at 45 degrees. A bearing is provided on the bearing rod. The bearing is used to contact the cutting material to provide a support point, so that the bevel cutting is more stable and smooth. A bearing rod is provided on one side of the cutter head 1 and the cutter rod. A bearing assembly is installed on the bearing rod. The bearing assembly includes a rotatable bearing. The cutter rod includes a first cutter rod 3 and a second cutter rod 4. One end of the first cutter rod 3 is welded to the cutter head 1, and the other end is provided with a circular socket 6. A slot is provided on the inner wall of the socket 6, and a ratchet is provided on the inner wall of the slot. One end of the second cutter rod 4 is provided with a plug, which is inserted into the socket. 6, and can rotate in the socket 6. Since a pawl 7 cooperating with the ratchet is provided on the outer peripheral side of the plug-in portion, the plug-in portion can only rotate in one direction in the socket 6. When the blade 2 is reversed, the plug-in portion can rotate. When the blade 2 is used for forward rotation for cutting, the plug-in portion rotates synchronously with the first tool rod 3, and a disassembly surface 8 is provided on the side of the pawl 7 away from the first tool rod 3. When the first tool rod 3 and the second tool rod 4 are pulled in the opposite direction, since the pawl 7 is provided with the disassembly surface 8, the pawl 7 can be retracted inwardly and disengaged from the ratchet, thereby realizing disassembly, and this milling cutter is vertically arranged on the operating table, and the cutter body is arranged upward.

[0035] The above structure can prevent the cutting edge 2 from making hard contact with the material and thus preventing it from being damaged by collision when the milling cutter is reversed due to misoperation.

[0036] Example 2:

[0037] This embodiment provides a new bevel milling cutter, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] The bearing is a ball bearing 5.

[0039] The ball bearing 5 includes an inner ring and an outer ring, and a rolling body is provided between the inner ring and the outer ring. The rolling body is a steel ball. A retaining frame is also provided. The retaining frame is used to separate the rolling bodies to prevent mutual contact between the rolling bodies and ensure their uniform distribution. Sealing rings are provided at both ends of the bearing to prevent dust and lubricating oil leakage and extend the service life. The ball bearing 5 has higher rotation efficiency and can withstand axial and radial loads. It can work normally when cutting curved grooves.

[0040] Example 3:

[0041] This embodiment provides a new bevel milling cutter, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] The outer diameter of the bearing is equal to the diameter of the shank.

[0043] During cutting, the cutter bar is also pressed against the surface of the blank material, and the outer diameter of the bearing 2 is equal to the diameter of the cutter bar, so that the grooving direction of the cutter head 1 is perpendicular to the blank material, which improves the grooving quality.

[0044] Example 4:

[0045] This embodiment provides a new bevel milling cutter, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0046] The bearing assembly includes:

[0047] Support plate 9, which is fixed on the bearing rod;

[0048] A first fixing ring is disposed between the supporting plate 9 and the stationary ring of the bearing;

[0049] A second fixing ring is provided on a side of the bearing opposite to the first fixing ring and contacts the stationary ring of the bearing;

[0050] A fixing screw is threadedly connected to the bearing rod and abuts against the second fixing ring.

[0051] The above structure can make the bearing a replaceable structure, the size of the bearing can be changed, and the bearing can also be replaced when it is damaged.

[0052] Example 5:

[0053] This embodiment provides a new bevel milling cutter, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0054] Also includes:

[0055] The release ring 10 is sleeved on the inserting portion, and one end of the release ring 10 abuts against the disassembly curved surface 8, and the release ring 10 can slide along the axial direction of the knife rod.

[0056] When the disengagement ring 10 is slid toward the pawl 7, the disengagement ring 10 can compress the pawl 7. When the disengagement ring 10 is released, the pawl 7 and the ratchet wheel are separated, and then the second knife rod 4 is pulled out, making disassembly smoother.

[0057] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which fall within the scope of protection of this application.

Claims

1. A new type of bevel milling cutter, characterized in that, It comprises a cutter head (1) and a cutter rod, wherein a bearing rod is provided on a side of the cutter head (1) opposite to the cutter rod; A bearing assembly is provided on the bearing rod, and the bearing assembly includes a bearing; The knife bar comprises a first knife bar (3) and a second knife bar (4); one end of the first knife bar (3) is connected to the knife head (1); the other end is provided with a socket (6); the inner wall of the socket (6) is provided with a slot, and a ratchet is provided in the slot; One end of the second knife bar (4) is provided with an inserting portion, which is inserted into the inserting hole (6), and a ratchet (7) that cooperates with the ratchet is provided on the outer peripheral side of the inserting portion, and a disassembly curved surface (8) for disassembly is provided on the side of the ratchet (7) away from the first knife bar (3).

2. A new bevel milling cutter according to claim 1, characterized in that: The bearing is a ball bearing (5).

3. A new type of bevel milling cutter according to claim 1, characterized in that: The outer diameter of the bearing is equal to the diameter of the shank.

4. A novel bevel milling cutter according to claim 1, characterized in that: The bearing assembly includes: A supporting plate (9), the supporting plate (9) is fixed on the bearing rod; A first fixing ring, the first fixing ring being disposed between the supporting plate (9) and the stationary ring of the bearing; A second fixing ring is provided on a side of the bearing opposite to the first fixing ring and contacts the stationary ring of the bearing; A fixing screw is threadedly connected to the bearing rod and abuts against the second fixing ring.

5. A novel bevel milling cutter according to claim 1, characterized in that: Also includes: The escape ring (10) is sleeved on the inserting portion, and one end of the escape ring (10) abuts against the disassembly curved surface (8), and the escape ring (10) can slide along the axial direction of the knife rod.

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