Composite long-edge angle milling cutter

Abstract

The utility model discloses a composite long-blade angle milling cutter, which relates to the technical field of milling cutters and comprises a milling cutter body, the milling cutter body comprises a cutter body and a blade, a group of damping rings for damping are arranged on the annular side surface of the cutter body, a connecting ring for bearing is arranged below the group of damping rings, and a circular groove and a spiral channel are arranged in the cutter body. An inlet and a liquid injection opening are formed in the annular side face of the cutter body, a spiral channel is formed in the cutter body, cooling liquid is injected through the inlet and flows to a blade through the spiral channel, in the milling process, the temperature of a cutting area can be sharply increased, and heat can be taken away in time through the cooling liquid in the spiral channel; according to the spiral design of the spiral channel, cooling liquid can stay for a long time in the cutter body and can be better distributed in the cutting edge under the action of centrifugal force, and finally the cooling liquid is directly sprayed to a cutting area through the outlet, so that deformation of the cutter and a workpiece due to overheating is prevented, and the service life of the cutter is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to milling cutter technical field, especially to a kind of composite long blade angle milling cutter. BACKGROUND

[0002] In the field of metal processing, milling is a very important processing method, widely used in aerospace, automobile manufacturing, mold processing and many other industries, aiming at accurately shaping various complex parts shapes. As the key tool of milling, composite long blade angle milling cutter plays an indispensable role. In actual milling operation, the following several key aspects are usually involved:

[0003] 1. Machine tool, as the core power source and execution platform of milling, provides stable and powerful rotary power for milling cutter, drives the milling cutter to work according to the preset cutting path, and ensures the high-precision positioning and stable operation of the milling cutter during processing.

[0004] 2. Workpiece clamp is responsible for firmly clamping the workpiece to be processed, so that it will not be displaced or shaken under the action of milling force, ensuring the processing accuracy and consistency. Different shapes and sizes of workpieces need to be matched with corresponding special clamps.

[0005] 3. Cutting fluid supply system continuously supplies cutting fluid to the milling area. On the one hand, it reduces the cutting temperature and prevents the tool and workpiece from being damaged due to overheating. In high-temperature alloy processing, it effectively avoids rapid tool wear and workpiece thermal deformation. On the other hand, cutting fluid can also play a lubricating role, reducing the friction coefficient between the tool and the workpiece, improving the processing surface quality, and making the processing surface smoother and more uniform.

[0006] At present, in order to meet the diversified milling needs, various milling cutters and related processing technologies have been developed and adopted by manufacturers. Some manufacturers focus on optimizing traditional milling cutters by improving tool materials, such as using new hard alloys to improve the hardness and wear resistance of the tool to cope with the milling challenges of high-hardness materials. Some manufacturers are committed to innovating milling cutter structure and launching multifunctional milling cutters, which combine rough machining and finishing functions, reduce processing procedures and improve production efficiency.

[0007] However, the prior art still has some problems to be solved, most of the traditional milling cutters rely on external cutting fluid to spray heat dissipation, the heat dissipation efficiency is limited, especially in high-speed, high-intensity milling working condition, a large amount of heat generated in the cutting area cannot be dissipated in time, resulting in rapid rise of tool temperature, in the aspect of shock absorption, the milling cutter is easily affected by uneven cutting force, uneven workpiece material and other factors during cutting, and generates violent vibration, aiming at these problems, the application provides an innovative solution, designs a composite long edge angle milling cutter with spiral cooling channel, utilizes the high-efficiency heat dissipation of the spiral cooling channel, and combines with a specific damping structure, effectively reduces the vibration of the milling cutter, and thus can significantly improve the machining precision and efficiency, and prolong the service life of the tool. Content of the utility model

[0008] In view of the defects of the prior art, the utility model provides a composite long edge angle milling cutter, solves the problems that most of the traditional milling cutters rely on external cutting fluid to spray heat dissipation, the heat dissipation efficiency is limited, especially in high-speed, high-intensity milling working condition, a large amount of heat generated in the cutting area cannot be dissipated in time, resulting in rapid rise of tool temperature, in the aspect of shock absorption, the milling cutter is easily affected by uneven cutting force, uneven workpiece material and other factors during cutting, and generates violent vibration.

[0009] In order to realize the above object, the utility model realizes through the following technical scheme:

[0010] A composite long edge angle milling cutter, comprising a milling cutter body, the milling cutter body comprising a cutter body and a cutting edge, a group of damping rings for damping are arranged on the annular side surface of the cutter body, a connecting ring for bearing is arranged below the group of damping rings, a circular groove and a spiral channel are arranged in the cutter body, an inlet and a liquid injection port are arranged on the annular side surface of the cutter body, an outlet is arranged on the annular side surface of the cutting edge, two arc-shaped blocks are fixedly connected to the lower surface of the connecting ring, a screw is movably sleeved in each of the two arc-shaped blocks, a group of limiting blocks are fixedly connected to the inner wall of the connecting ring, and the connecting ring and the cutter body are movably sleeved.

[0011] Preferably, the inlet and the outlet are communicated with the spiral channel, the circular groove is communicated with the liquid injection port, a group of connecting rods are fixedly connected between the group of damping rings, and the group of connecting rods are fixedly connected with the connecting ring.

[0012] Preferably, two threaded holes are arranged on the annular side surface of the cutter body, the two threaded holes are respectively threadedly sleeved with the two screws, a group of clamping grooves are arranged on the annular side surface of the cutter body, and the group of clamping grooves are movably connected with the group of limiting blocks.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、The spiral channel is arranged in the cutter body, the cooling liquid is injected through the inlet and flows to the cutting edge through the spiral channel, the temperature of the cutting area is sharply increased during the milling process, the cooling liquid in the spiral channel can timely take away the heat, the spiral design of the spiral channel can make the cooling liquid have a longer residence time in the cutter body and be better distributed in the cutting edge under the action of the centrifugal force, and finally the cooling liquid is directly sprayed to the cutting area through the outlet, thereby preventing the deformation of the cutter and the workpiece due to overheating and prolonging the service life of the cutter.

[0015] 2、Vibration is generated during the cutting process, when the vibration is transmitted to the set of damping rings, the vibration energy is consumed through the friction and deformation of the molecular chains in the damping rings, thereby reducing the vibration amplitude of the milling cutter, in addition, the circular groove arranged in the cutter body is filled with viscoelastic polymer, the viscoelastic polymer is injected through the liquid injection port, after the filling is completed, the liquid injection port is sealed by the sealing glue, when the milling cutter vibrates during the cutting process, the built-in viscoelastic polymer can effectively reduce the vibration, thereby improving the quality of the machined surface and reducing the wear of the cutter. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the utility model can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail in combination with the drawings.

[0017] Figure 1 It is the overall structural diagram of the utility model;

[0018] Figure 2 It is the sectional view of the utility model;

[0019] Figure 3 It is the cutter body structure diagram of the utility model;

[0020] Figure 4 It is the damping ring structure diagram of the utility model.

[0021] Legend: 1, cutter body;2, cutting edge;3, damping ring;4, connecting ring;5, inlet;6, circular groove;7, spiral channel;8, outlet;9, clamping groove;10, threaded hole;11, liquid injection port;12, connecting rod;13, limit block;14, arc block;15, screw. DETAILED DESCRIPTION

[0022] The embodiment of the application provides a composite long-edge angle milling cutter, effectively solves the problems that most of the traditional milling cutters depend on the spraying of external cutting fluid for heat dissipation, the heat dissipation efficiency is limited, especially under the high-speed and high-strength milling working condition, a large amount of heat generated in the cutting area cannot be dissipated in time, the tool temperature sharply rises, in the aspect of shock absorption, the milling cutter is easily affected by uneven cutting force, uneven workpiece material and other factors during the cutting process, and violent vibration is generated, the spiral cooling channel is used for high-efficiency heat dissipation, and the specific shock absorption structure is combined, so that the milling cutter vibration is effectively reduced, and the machining precision and efficiency can be significantly improved, and the service life of the tool is prolonged.

[0023] Embodiment

[0024] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the technical scheme in the embodiment of the application effectively solves the problems that most of the traditional milling cutters depend on the spraying of external cutting fluid for heat dissipation, the heat dissipation efficiency is limited, especially under the high-speed and high-strength milling working condition, a large amount of heat generated in the cutting area cannot be dissipated in time, the tool temperature sharply rises, in the aspect of shock absorption, the milling cutter is easily affected by uneven cutting force, uneven workpiece material and other factors during the cutting process, and violent vibration is generated, and the overall idea is as follows:

[0025] In view of the problems in the prior art, the utility model provides a kind of composite long-edge angle milling cutter, including milling cutter body, milling cutter body includes tool body 1 and blade 2, tool body 1 annular side is provided with a group of damping ring 3 for shock absorption, a group of damping ring 3 below is provided with the connecting ring 4 for bearing, tool body 1 is internally provided with circular groove 6 and spiral channel 7, tool body 1 annular side is provided with inlet 5 and liquid injection port 11, blade 2 annular side is provided with outlet 8, the lower surface of connecting ring 4 is fixedly connected with two arc blocks 14, two arc blocks 14 are movably sleeved with screw 15, the inner wall of connecting ring 4 is fixedly connected with a group of limit blocks 13, connecting ring 4 is movably sleeved with tool body 1, spiral channel 7 is internally provided in tool body 1, cooling liquid is injected through inlet 5, and flows to blade 2 through spiral channel 7, in the process of milling, cutting area temperature will sharply rise, cooling liquid in spiral channel 7 can take away heat in time, the spiral design of spiral channel 7 is to enable cooling liquid to have longer residence time inside tool body 1, and better distribution in blade 2 under the action of centrifugal force, finally cooling liquid is directly sprayed to cutting area through outlet 8, to prevent tool and workpiece from deforming due to overheating, and prolong the service life of tool.

[0026] The inlet 5 and the outlet 8 are communicated with the spiral channel 7, the circular groove 6 is communicated with the liquid injection port 11, a group of connecting rods 12 are fixedly connected between a group of damping rings 3, the connecting rods 12 are fixedly connected with the connecting ring 4, two threaded holes 10 are formed in the annular side surface of the cutter body 1, the threaded holes 10 are respectively threadedly sleeved with two screws 15, a group of clamping grooves 9 are formed in the annular side surface of the cutter body 1, the clamping grooves 9 are movably connected with a group of limiting blocks 13, a group of damping rings 3 are arranged on the annular side surface of the cutter body 1, are fixed above the connecting ring 4 and are connected and fixed through the two screws 15, the damping rings 3 are made of zinc alloy with high damping performance, in the cutting process, when the vibration is transmitted to the damping rings 3, the vibration energy is consumed through the molecular chain friction and deformation in the damping rings 3, and then the vibration amplitude of the milling cutter is reduced, in addition, the circular groove 6 formed in the cutter body 1 is filled with viscoelastic polymer, the viscoelastic polymer is injected through the liquid injection port 11, after the filling is completed, the liquid injection port 11 is sealed by sealing glue, when the milling cutter vibrates in the cutting process, the built-in viscoelastic polymer can effectively reduce the vibration, so that the quality of the machined surface is improved and the wear of the cutter is reduced.

[0027] Among them, the cutter body 1: as the main structure of the milling cutter, support the cutting edge 2, accommodate cooling and damping components, through the connection with the machine tool to transmit power, its shape and structure affect the overall performance of the milling cutter;

[0028] The cutting edge 2: is the part of the milling cutter directly performing cutting work, through the specific long blade and angle design, realizes the milling machining of the workpiece;

[0029] The damping ring 3: made of zinc alloy with high damping performance, consumes vibration energy through molecular chain friction and deformation, reduces the vibration amplitude of the milling cutter in the cutting process;

[0030] The connecting ring 4: bears the damping ring 3 and fixes the damping ring 3 on the cutter body 1 through the arc-shaped block 14, the screw 15 and the cooperation of the movable sleeve of the cutter body 1 and the clamping groove 9 and the limiting block 13, ensures the stable installation of the damping ring 3 on the cutter body 1, provides a support basis for the damping effect of the damping ring 3;

[0031] The inlet 5: as the channel port of the cooling liquid into the spiral channel 7 of the cutter body 1, is connected with the external cooling liquid supply system, so that the cooling liquid can be injected into the cutter body 1, opens the cooling cycle and ensures the start of the cooling process;

[0032] The circular groove 6: is formed in the cutter body 1 and is used for filling viscoelastic polymer, provides a containing space for the built-in damping material, when the milling cutter vibrates, the viscoelastic polymer can effectively reduce the vibration, auxiliary improve the quality of the machined surface and reduce the wear of the cutter;

[0033] Spiral channel 7: makes the coolant have a longer residence time inside the tool body 1, better distributed to the cutting edge 2 under the action of centrifugal force, timely take away the cutting heat, prevent the tool and workpiece overheating deformation, prolong the service life of the tool;

[0034] Outlet 8: located in the annular side of the cutting edge 2, in communication with the spiral channel 7, directly injects the coolant in the spiral channel 7 to the cutting area, realizes effective cooling of the cutting edge and the workpiece;

[0035] Clamping groove 9: opened in the annular side of the tool body 1, movably connected with the limiting block 13 in the inner wall of the connecting ring 4, ensures the accuracy and stability of the installation of the connecting ring 4 on the tool body 1, assists in positioning and fixing the connecting ring 4 and the damping ring 3;

[0036] Threaded hole 10: located in the annular side of the tool body 1, threaded with the screw 15 in the arc block 14 of the connecting ring 4, realizes the fastening connection of the connecting ring 4 and the tool body 1;

[0037] Liquid injection port 11: connects the circular groove 6 with the outside, used for injecting viscoelastic polymer into the circular groove 6, and the filling of damping material can be sealed by sealing glue, providing a way for the filling of damping material in the circular groove 6;

[0038] Connecting rod 12: connects a group of damping rings 3 and is fixed with the connecting ring 4, enhances the connection stability between the damping rings 3, makes the damping rings 3 play a damping role as a whole, ensures the uniformity and effectiveness of the damping effect;

[0039] Limiting block 13: fixed in the inner wall of the connecting ring 4, movably connected with the clamping groove 9 on the tool body 1, plays a positioning and limiting role when the connecting ring 4 is installed, ensures the accurate cooperation of the connecting ring 4 and the tool body 1, maintains the stability of the installation position of the damping ring 3;

[0040] Arc block 14: fixed on the lower surface of the connecting ring 4, movably sleeved with the screw 15 inside, cooperates with the threaded hole 10 on the tool body 1, realizes the connection of the connecting ring 4 and the tool body 1 through the screw 15 fastening, provides a structural basis for the fixation of the damping ring 3 on the tool body 1;

[0041] Screw 15: threaded with the threaded hole 10 on the tool body 1 through the arc block 14 of the connecting ring 4, realizes the fastening of the connecting ring 4 and the tool body 1, ensures the stability of the damping ring 3 structure on the tool body 1, ensures the effective realization of the damping function.

[0042] Working principle:

[0043] Spiral channel 7 is arranged in the cutter body 1, the cooling liquid is injected through the inlet 5, and flows to the cutting edge 2 through the spiral channel 7. In the milling process, the temperature of the cutting area will rise sharply, and the cooling liquid in the spiral channel 7 can take away the heat in time. The spiral design of the spiral channel 7 is to enable the cooling liquid to have a longer residence time inside the cutter body 1, and to be better distributed in the cutting edge 2 under the action of centrifugal force. Finally, the cooling liquid is directly sprayed to the cutting area through the outlet 8, thereby preventing the tool and the workpiece from deforming due to overheating, prolonging the service life of the tool, and the annular side of the cutter body 1 is provided with a set of damping rings 3, which are fixed above the connecting ring 4 and connected and fixed by two screws 15. The damping ring 3 is made of zinc alloy with high damping performance. In the cutting process, vibration will be generated, and when the vibration is transmitted to the set of damping rings 3, the vibration energy is consumed through the molecular chain friction and deformation inside the damping ring 3, thereby reducing the vibration amplitude of the milling cutter. In addition, the circular groove 6 is arranged in the cutter body 1, and the viscoelastic polymer is filled in the circular groove 6, which is injected through the liquid injection port 11. After filling is completed, the liquid injection port 11 is sealed by sealing glue. When the milling cutter vibrates during cutting, the built-in viscoelastic polymer can effectively reduce the vibration, thereby improving the quality of the machined surface and reducing the wear of the tool.

[0044] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A composite long edge angle cutter comprising a cutter body comprising a cutter body (1) and a cutting edge (2), characterized in that, The knife body (1) annular side is provided with a set of damping ring (3) for shock absorption, a set of the damping ring (3) below is provided with a connecting ring (4) for bearing, the knife body (1) is provided with circular groove (6) and spiral channel (7) in, the knife body (1) annular side is provided with inlet (5) and liquid injection port (11); Wherein, the knife edge (2) annular side is provided with outlet (8), the lower surface of the connecting ring (4) is fixedly connected with two arc blocks (14), two arc blocks (14) are movably sleeved with screw (15) in, the inner wall of the connecting ring (4) is fixedly connected with a set of limit block (13).

2. A composite long edge angle cutter as claimed in claim 1 wherein: The connecting ring (4) is movably sleeved with the knife body (1).

3. A composite long edge angle cutter as claimed in claim 1 wherein: The inlet (5) and outlet (8) are communicated with the spiral channel (7); Wherein, the circular groove (6) is communicated with the liquid injection port (11).

4. A composite long edge angle cutter as claimed in claim 1 wherein: A set of the damping ring (3) is fixedly connected with a set of connecting rod (12) between them; Wherein, a set of the connecting rod (12) is fixedly connected with the connecting ring (4).

5. A composite long edge angle cutter as claimed in claim 1 wherein: The knife body (1) annular side is provided with two threaded holes (10); Wherein, two threaded holes (10) are respectively threaded with two screws (15).

6. A composite long edge angle cutter as claimed in claim 1 wherein: The knife body (1) annular side is provided with a set of clamping groove (9); Wherein, a set of the clamping groove (9) is movably connected with a set of limit block (13).

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