Durable milling cutter

Abstract

The utility model discloses a durable milling cutter, which relates to the technical field of machining, and comprises a shell, a milling cutter handle is detachably arranged in the shell, a fastening knob is arranged on the shell, and the fastening knob is matched with a fastening column to limit the milling cutter handle; by designing the milling cutter handle capable of being rapidly disassembled, assembled and adjusted, force arms of the cutter and the cutter handle are adjusted according to machining requirements, so that vibration, machining precision reduction and cutter abrasion caused by high material hardness are effectively prevented; meanwhile, a cavity for fluid circulation is formed in the milling cutter handle, cooling liquid can be accurately sprayed to the contact position of the cutter and a workpiece, cooling is achieved, chippings are discharged, the machining precision is improved, and the influence of high temperature on the cutter and the workpiece is avoided; in addition, the milling blade is flexibly adjusted, so that the extension amount of the blade is adjusted according to the machining depth and the material hardness, and the application range is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a durable milling cutter. Background Technique

[0002] In modern manufacturing, milling cutters, as key cutting tools, play an important role in fields such as metal processing, plastic processing, and composite material processing; with the rapid development of industrial automation and high-precision machining, the performance requirements for milling cutters are also increasing day by day, including wear resistance, strength, toughness, and cutting effect, etc.

[0003] The utility model patent with the publication number CN219336120U discloses a durable milling cutter, which includes a connecting seat, and a connecting tool handle is fixedly connected to the bottom thereof; the bottom of the connecting tool handle is movably connected to a fixed tool handle, and a tungsten carbide tool body is fixed to the bottom end of the fixed tool handle; an adjusting groove is provided at the lower end inside the connecting tool handle, and there is a fixing groove at each of the front and rear lower ends of the connecting tool handle. The inner wall of the fixing groove is movably connected with a fixing bolt extending into the adjusting groove; the top of the fixed tool handle is fixedly connected with an adjusting rod, and bolt holes are provided on the front and rear sides of the adjusting rod; by sliding the adjusting rod in the adjusting groove and combining the threaded fit of the fixing bolt and the bolt hole, the milling cutter realizes the limit fixation after the sliding of the adjusting rod, so as to adjust the overall length between the connecting tool handle and the fixed tool handle.

[0004] However, this prior art cannot adjust the force arm between the tool and the tool handle according to the actual processing requirements. When the material hardness of the workpiece to be processed is relatively large, vibrations are likely to occur, resulting in problems such as a decrease in machining accuracy, an increase in the surface roughness of the workpiece, and an aggravation of tool wear; at the same time, the high temperature generated during the milling process will exacerbate tool wear, reduce material properties, and cause thermal deformation, thereby shortening the tool life and affecting the machining accuracy; this prior art also cannot adjust the protrusion amount of the tool according to the processing requirements to adapt to the processing of different materials. Content of the Utility Model

[0005] In view of the above technical problems, the utility model provides the following technical solutions; a durable milling cutter, including a housing, a milling tool handle is detachably arranged inside the housing, a fastening knob is arranged on the housing, and the fastening knob cooperates with a fastening column to limit the milling tool handle.

[0006] Further, the fastening knob is in threaded fit with the housing, an installation hole for installing the milling tool handle is opened on the fastening knob, and one end of the fastening column is arranged in the installation hole.

[0007] Further, a clamping end for limiting the milling tool handle is arranged on the fastening column, the clamping end is composed of a plurality of elastic shrapnel, and a rectangular convex block is arranged at the other end of the fastening column. The rectangular convex block is fitted with a rectangular cavity at the top of the housing to prevent the fastening column from rotating.

[0008] Furthermore, a limiting boss is provided at one end of the milling cutter handle, and the limiting boss is fitted with a limiting chamber provided inside the fastening column to prevent the milling cutter handle from rotating.

[0009] Furthermore, a fixing block is fixedly provided at the top of the outer shell. Fastening screws are symmetrically provided on the fixing block, and a groove for installation is provided in the middle of the fixing block.

[0010] Furthermore, a plurality of milling cutter blades are provided at the other end of the milling cutter handle through milling cutter fastening screws, and the milling cutter blades are distributed in a circular array along the rotation center of the milling cutter handle.

[0011] Furthermore, an installation groove is provided on the milling cutter blade, and the installation groove is arranged parallel to the axial direction of the milling cutter handle.

[0012] Furthermore, a fluid cavity for fluid circulation is provided inside the milling cutter handle, and the fluid cavity is communicated with a fluid hole provided at the central position of the outer shell.

[0013] The beneficial effects of the present utility model compared with the prior art are as follows: 1. By providing a milling cutter handle that can be quickly disassembled, assembled and adjusted according to actual needs, the present utility model can adjust the force arm between the tool and the handle according to actual processing requirements, preventing problems such as vibration when the material hardness of the workpiece to be processed is relatively large, resulting in a decrease in processing accuracy, an increase in the surface roughness of the workpiece, and an aggravation of tool wear.

[0014] 2. By providing a cavity for fluid circulation inside the milling cutter handle, cooling liquid can be introduced into the inside of the milling cutter handle and precisely sprayed from the inside of the milling cutter handle to the position where the tool contacts the workpiece to achieve precise cooling. At the same time, it helps to discharge debris, improve processing accuracy, and prevent adverse effects of high temperature on the tool and the workpiece.

[0015] 3. By providing milling cutter blades that can be flexibly adjusted according to the actual processing depth, the extension amount of the milling cutter blades can be adjusted according to processing requirements, and thus can be flexibly selected according to the hardness of the processing material, with a wider scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the overall structure of the present utility model.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present utility model from a front view angle.

[0018] Figure 3 It is a schematic diagram of the overall structure of the present utility model from a side view angle.

[0019] Figure 4 It is a schematic diagram of the partial structure of the milling cutter handle of the present utility model.

[0020] Figure 5For the present utility model Figure 4 The enlarged schematic view of the partial structure at position A in the present utility model.

[0021] Figure 6 The schematic view of the partial structure of the fastening column of the present utility model.

[0022] Figure 7 The schematic view of the partial structure of the present utility model Figure 1 .

[0023] Figure 8 The schematic view of the partial structure of the present utility model Figure 2 .

[0024] Figure 9 The sectional view of the partial structure of the present utility model Figure 1 .

[0025] Figure 10 The sectional view of the partial structure of the present utility model Figure 2 .

[0026] Figure 11 The sectional view of the partial structure of the present utility model Figure 3 .

[0027] Figure 12 The sectional view of the partial structure of the fastening column of the present utility model.

[0028] Reference numerals: 10 - fastening column; 11 - outer shell; 12 - fastening knob; 13 - fixing block; 14 - fastening screw; 20 - milling blade; 21 - milling cutter fastening screw; 22 - milling cutter handle. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] As Figures 1 to 12As shown in the figure, a durable milling cutter includes a housing 11, the housing 11 is cylindrical, and a milling cutter handle 22 is detachably arranged inside the housing 11. A fastening knob 12 is arranged on the housing 11, and the fastening knob 12 cooperates with a fastening column 10 to limit the milling cutter handle 22; the inner wall of the fastening knob 12 is in threaded cooperation with the outer wall of the housing 11. An installation hole for installing the milling cutter handle 22 is provided on the fastening knob 12. A clamping end for limiting the milling cutter handle 22 is arranged on the fastening column 10. The clamping end of the fastening column 10 is arranged in the installation hole, and the clamping end of the fastening column 10 is in sliding cooperation with the inner wall of the housing 11 to apply a force for fixing the outer wall of the milling cutter handle 22; the position of the milling cutter handle 22 is restricted.

[0031] As Figures 1 to 12 shown in the figure, the clamping end is composed of a plurality of elastic shrapnel. A rectangular protrusion is arranged at the other end of the fastening column 10, and the rectangular protrusion is fitted into a rectangular cavity at the top of the housing 11 to prevent the fastening column 10 from rotating; a limiting boss is arranged at one end of the milling cutter handle 22, and the limiting boss is fitted into a limiting chamber arranged inside the fastening column 10 to prevent the milling cutter handle 22 from rotating.

[0032] As Figures 1 to 3 shown in the figure, a fixing block 13 is fixedly arranged at the top of the housing 11. Fastening screws 14 are symmetrically arranged on both sides of the fixing block 13. The fastening screws 14 are in threaded cooperation with the fixing block 13. A groove for installing on a milling device is arranged in the middle of the fixing block 13.

[0033] As Figure 1 、 Figure 4 、 Figure 5 、 Figure 9 shown in the figure, a plurality of milling blades 20 are arranged at the other end of the milling cutter handle 22 through milling cutter fastening screws 21. The milling blades 20 are distributed in a circular array along the rotation center of the milling cutter handle 22; installation grooves are arranged on the milling blades 20, and the installation grooves are arranged parallel to the milling cutter handle 22 along the axial direction of the milling cutter handle 22; a fluid cavity for fluid circulation is arranged inside the milling cutter handle 22, and the fluid cavity is communicated with a fluid hole arranged at the central position of the housing 11; the materials of the milling cutter handle 22 and the milling blades 20 are preferably high-speed steel or cemented carbide materials.

[0034] As Figures 1 to 12As shown in the figure, a durable milling cutter disclosed by the present utility model has the following working principle: The outer shell 11 is fixedly installed on the processing head of the milling equipment through the fastening screws 14 arranged at the top. According to the processing requirements, one end of the milling cutter handle 22 with a limiting boss is passed through the inside of the fastening knob 12 and the fastening column 10, so that the limiting boss arranged on the milling cutter handle 22 is engaged with the limiting cavity arranged inside the fastening column 10 to prevent the relative rotation between the milling cutter handle 22 and the fastening column 10; after the positions of the milling cutter handle 22 and the fastening column 10 are determined, the operator manually rotates the fastening knob 12 to make the fastening knob 12 close to the outer shell 11. At this time, the fastening knob 12 is in sliding fit with the clamping end on the fastening column 10, and the fastening column 10 and the milling cutter handle 22 are pushed to slide towards the fixed block 13. At this time, the outer surface of the elastic piece on the clamping end of the fastening column 10 is in sliding fit with the inner wall of the outer shell 11, prompting the elastic piece on the clamping end to move towards the milling cutter handle 22 until the elastic piece on the clamping end clamps the milling cutter handle 22 to limit the axial position of the milling cutter handle 22. While the fastening column 10 slides, the rectangular convex block arranged at one end of the fastening column 10 is engaged with the rectangular cavity at the top of the outer shell 11 to prevent the relative rotation of the fastening column 10 with respect to the outer shell 11 and limit the position of the fastening column 10 in the radial direction of the milling cutter handle 22; the axial and radial positions of the milling cutter handle 22 are limited; at the same time, the adjustment of the axial extension amount of the milling cutter handle 22 is realized, and the force arm between the milling cutter handle 22 and the surface of the processed workpiece is adjusted to prevent problems such as vibration and tool offset during the processing due to too long a force arm.

[0035] When installing the milling cutter blade 20, the operator manually unscrews the milling cutter fastening screw 21, installs the milling cutter blade 20 at an appropriate position, and then resets the milling cutter fastening screw 21 to complete the installation of the milling cutter blade 20. According to the processing requirements, the position of the milling cutter blade 20 can be adjusted by moving the milling cutter blade 20 through the installation groove on the milling cutter blade 20, and the adjustment of the extension amount of the milling cutter blade 20 in the axial direction of the milling cutter handle 22 is realized to adapt to different processing depths.

[0036] During cooling, the fluid hole on the outer shell 11 is communicated with the coolant output end of the milling equipment, and the coolant enters the milling cutter handle 22 through this fluid hole and flows out to the milling cutter blade 20 through the fluid cavity inside the milling cutter handle 22 to cool the position where the milling cutter blade 20 contacts the workpiece to be processed and wash away the chips.

Claims

1. A durable milling cutter, characterized in that: It includes a housing (11), a milling cutter handle (22) is detachably arranged inside the housing (11), a fastening knob (12) is arranged on the housing (11), and the fastening knob (12) cooperates with a fastening post (10) to limit the milling cutter handle (22). The fastening knob (12) is in threaded fit with the housing (11), an installation hole for installing the milling cutter handle (22) is provided on the fastening knob (12), and one end of the fastening post (10) is arranged in the installation hole. A clamping end for limiting the milling cutter handle (22) is arranged on the fastening post (10), the clamping end is composed of a plurality of elastic shrapnel, and a rectangular protrusion is arranged at the other end of the fastening post (10), and the rectangular protrusion is fitted with a rectangular cavity at the top of the housing (11) to prevent the fastening post (10) from rotating. A limiting boss is arranged at one end of the milling cutter handle (22), and the limiting boss is fitted with a limiting chamber arranged inside the fastening post (10) to prevent the milling cutter handle (22) from rotating. A fluid cavity for fluid circulation is arranged inside the milling cutter handle (22), and the fluid cavity is communicated with a fluid hole arranged at the central position of the housing (11).

2. A durable milling cutter according to claim 1, characterized in that: A fixed block (13) is fixedly arranged at the top of the housing (11), fastening screws (14) are symmetrically arranged on the fixed block (13), and a groove for installation is arranged in the middle of the fixed block (13).

3. A durable milling cutter according to claim 2, characterized in that: A plurality of milling blades (20) are arranged at the other end of the milling cutter handle (22) through milling cutter fastening screws (21), and the milling blades (20) are distributed in a circular array along the rotation center of the milling cutter handle (22).

4. A durable milling cutter according to claim 3, wherein: An installation groove is arranged on the milling blade (20), and the installation groove is arranged parallel to the axial direction of the milling cutter handle (22).

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