Cutting tool with inner cooling cover plate

Abstract

The cutting tool with the inner cooling cover plate comprises a tool body, a plurality of blades are evenly arranged at the bottom of the circumferential side wall of the tool body, each blade is provided with a cutting end, and a groove is formed in the bottom of the tool body; the inner cooling cover plate is arranged in the groove and matched with the groove, a plurality of cooling channels are formed in the inner cooling cover plate, each cooling channel is provided with a first end, the first ends communicate with the circumferential side wall of the bottom of the inner cooling cover plate, and the first ends face the cutting end and can output cooling liquid to the cutting end; the cutter body is driven to rotate through an external structure, a machined part can be cut, cooling liquid is conveyed to the cooling channel, and the cooling liquid can be output through the first end and sprayed out to the cutting end, so that the purpose of cooling the blade and the area, making contact with the blade, of the machined part is achieved, and the cutting area is directly and efficiently cooled.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of metal cutting, in particular to a cutting tool with an inner cooling cover plate. BACKGROUND

[0002] When cutting metal, the work done by shear deformation and the work done by friction between the front and rear of the tool and the workpiece during cutting are all converted into heat, forming cutting heat. Most of the cutting heat will be transferred to the chip, and part of the cutting heat will be transferred to the workpiece and the tool, greatly increasing the temperature of the cutting area, which will reduce the machining efficiency, reduce the machining precision, shorten the tool life, and produce residual stress on the machined surface.

[0003] Therefore, cooling the cutting area during cutting is particularly important. The cooling structure of the milling cutter is generally divided into two types: one is external cooling, and the other is internal cooling. Internal cooling means that a cooling liquid channel is provided inside the milling cutter body, and the cooling liquid outlet is aligned with the cutting edge of the insert. Internal cooling can more directly and efficiently cool the cutting area, so internal cooling is superior to external cooling. However, due to the limitations of the structure of part of the tool body, it is not possible to arrange a cooling liquid channel inside the tool body, and only dry cutting or external cooling can be used to cool the machining area during cutting.

[0004] Therefore, we propose a cutting tool with an inner cooling cover plate. SUMMARY

[0005] In view of the above defects or deficiencies in the prior art, it is desirable to provide a cutting tool with an inner cooling cover plate.

[0006] In a first aspect, the present application provides a cutting tool with an inner cooling cover plate, comprising:

[0007] a tool body, the tool body is uniformly provided with a plurality of inserts on the bottom of the circumferential side wall, the insert has a cutting end, and the tool body is provided with a groove at the bottom;

[0008] an inner cooling cover plate, which is arranged in the groove and is matched with the groove, and a plurality of cooling channels are arranged in the inner cooling cover plate corresponding to the plurality of inserts, the cooling channel has a first end, the first end is communicated with the circumferential side wall of the bottom of the inner cooling cover plate, and the first end is directed towards the cutting end, for outputting cooling liquid to the cutting end.

[0009] According to the technical scheme provided in the embodiment of the present application, the inner cooling cover plate comprises a first connecting part and a second connecting part, the first connecting part is a circular truncated cone structure, is arranged in the groove and is matched with the groove, the second connecting part is coaxially fixedly connected at the bottom of the first connecting part, and the diameter of the second connecting part is greater than the diameter of the cutter body, a plurality of first avoiding grooves are uniformly arranged on the circumferential direction of the second connecting part and are used for avoiding the blades.

[0010] According to the technical scheme provided in the embodiment of the present application, the cooling channel further has a second end, the second end is communicated with the top of the first connecting part, the cooling channel comprises a first passage and a second passage which are communicated, one end of the first passage away from the second passage is a first end, one end of the second passage away from the first passage is a second end, and the diameter of the first passage is smaller than the diameter of the second passage.

[0011] According to the technical scheme provided in the embodiment of the present application, a first through hole is arranged on the cutter body along the axial direction of the cutter body, the first through hole is communicated with the groove, and the top of the first connecting part corresponds to the first through hole; a first mounting hole is arranged in the groove along the axial direction of the cutter body, a second mounting hole is arranged on the inner cooling cover plate, and a first mounting member extends into the first mounting hole through the second mounting hole.

[0012] According to the technical scheme provided in the embodiment of the present application, a plurality of accommodating grooves are arranged on the circumferential side wall of the cutter body, the plurality of accommodating grooves and the plurality of blades one-to-one correspond, the accommodating grooves are used for accommodating the blades, a third mounting hole is arranged in the accommodating groove, a fourth mounting hole is arranged on the blade, and a second mounting member extends into the third mounting hole through the fourth mounting hole.

[0013] According to the technical scheme provided in the embodiment of the present application, a plurality of adjusting holes are further arranged on the circumferential side wall of the cutter body, the plurality of adjusting holes and the plurality of accommodating grooves one-to-one correspond and are communicated, the adjusting holes are located above the accommodating grooves, an adjusting member is movably arranged in the adjusting hole, and the adjusting member is used for adjusting the position of the blade.

[0014] According to the technical scheme provided in the embodiment of the present application, a plurality of protection parts are uniformly arranged on the circumferential direction of the second connecting part, and the plurality of protection parts and the plurality of blades one-to-one correspond.

[0015] According to the technical scheme provided in the embodiment of the present application, a plurality of second avoiding grooves are further uniformly arranged on the circumferential side wall of the cutter body, the plurality of second avoiding grooves and the plurality of accommodating grooves one-to-one correspond and are communicated with the accommodating grooves.

[0016] In summary, the technical scheme specifically discloses a cutting tool with an inner cooling cover plate, which comprises a tool body, a plurality of blades are uniformly arranged at the bottom of the circumferential side wall of the tool body, the blade has a cutting end, and a groove is arranged at the bottom of the tool body; the inner cooling cover plate is arranged in the groove and is matched with the groove, a plurality of cooling channels are arranged in the inner cooling cover plate, the cooling channel has a first end, the first end is communicated with the circumferential side wall at the bottom of the inner cooling cover plate, and the first end faces the cutting end and can output the cooling liquid to the cutting end.

[0017] Therefore, the tool body can be rotated by the external structure to cut the workpiece, the cooling liquid can be output through the first end to be sprayed to the cutting end by conveying the cooling liquid to the cooling channel, and the purpose of cooling the cutting end and the region of the workpiece in contact with the blade can be achieved, and the cutting region can be directly and efficiently cooled. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features, objects, and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, which is to be read in conjunction with the accompanying drawings:

[0019] Fig. 1 It is a schematic view of a cutting tool with an inner cooling cover plate.

[0020] Fig. 2 It is an exploded view of a cutting tool with an inner cooling cover plate.

[0021] Fig. 3 It is another angle exploded view of a cutting tool with an inner cooling cover plate.

[0022] Fig. 4 It is a schematic view of an inner cooling cover plate.

[0023] In the drawings, 1 is a tool body, 2 is a blade, 3 is an inner cooling cover plate, 4 is a cooling channel, 5 is a first connecting part, 6 is a second connecting part, 7 is a first avoiding groove, 8 is a protection part, 9 is a second avoiding groove, 10 is a first mounting hole, 11 is a second mounting hole, 12 is a first mounting part, 13 is a second mounting part, 14 is an adjusting hole, 15 is an adjusting part, and 16 is a first end. DETAILED DESCRIPTION

[0024] The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and are not a limitation on the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for the convenience of description.

[0025] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The application will be described in detail below with reference to the drawings and embodiments.

[0026] Embodiment one

[0027] Please refer to Figs. 1 to 4 As shown in the figure, a cutting tool with an in-cold cover plate comprises a tool body 1, a recess is formed in the bottom of the tool body 1, and an in-cold cover plate 3 is arranged in the recess; the in-cold cover plate 3 is coaxially arranged with the tool body 1;

[0028] Further, a first through hole is formed in the tool body 1 along its axis, a second through hole is formed in the in-cold cover plate 3 along its axis, the first through hole and the second through hole are coaxial and communicate, and are used to connect with an external structure to drive the tool body 1 and the in-cold cover plate 3 to rotate.

[0029] Four first mounting holes 10 are uniformly formed in the recess in the circumferential direction, the axis of the first mounting hole 10 is parallel to the axis of the tool body 1, four second mounting holes 11 are formed in the in-cold cover plate 3, the axis of the second mounting hole 11 is parallel to the axis of the tool body 1, a first mounting member 12 extends through the second mounting hole 11 into the first mounting hole 10, so that the in-cold cover plate 3 and the tool body 1 can be mounted; optionally, the first mounting hole 10 and the second mounting hole 11 are threaded holes, and the first mounting member 12 is a bolt.

[0030] A plurality of accommodating grooves are uniformly arranged in the circumferential side wall of the tool body 1 at the bottom, a third mounting hole is formed in the accommodating groove, a blade 2 is arranged in the accommodating groove, a fourth mounting hole is formed in the blade 2, and a second mounting member 13 extends through the fourth mounting hole into the third mounting hole; optionally, the third mounting hole and the fourth mounting hole are threaded holes, and the second mounting member 13 is a bolt;

[0031] Further, the blade 2 has a cutting end at the bottom, and the cutting end extends out of the bottom of the tool body 1;

[0032] Further, a plurality of adjusting holes 14 are uniformly arranged in the circumferential side wall of the tool body 1 at the bottom, the plurality of adjusting holes 14 and the plurality of accommodating grooves one-to-one correspond and communicate, and the adjusting hole 14 is located above the accommodating groove, and an adjusting member 15 extends into the adjusting hole 14, so that by rotating the adjusting member 15, the position of the blade 2 in the axial direction of the tool body 1 can be adjusted, so that the plurality of cutting ends are in the same plane, and the cutting quality is ensured.

[0033] The in-cold cover plate 3 comprises a first connecting portion 5 and a second connecting portion 6, the first connecting portion 5 and the second connecting portion 6 are coaxially fixedly connected, and optionally, the first connecting portion 5 and the second connecting portion 6 are an integral structure, the first connecting portion 5 is located at the top of the second connecting portion 6, the first connecting portion 5 is a circular truncated cone structure, is arranged in the recess and is matched with the recess, the diameter of the second connecting portion 6 is greater than the diameter of the first connecting portion 5 and is greater than the diameter of the tool body 1, and is located at the bottom of the tool body 1, and the top of the first connecting portion 5 corresponds to the first through hole;

[0034] Further, the inner cooling cover plate 3 is provided with a plurality of cooling channels 4 corresponding to the plurality of blades 2, the plurality of cooling channels 4 and the plurality of blades 2 are one-to-one corresponding, the cooling channel 4 has a first end 16 and a second end, the first end 16 is communicated with the circumferential side wall of the second connecting part 6, and the first end 16 is towards the cutting end, the second end is communicated with the top of the first connecting part 5, and the second end is communicated with the first through hole;

[0035] Further, the cooling channel 4 includes a first passage and a second passage in communication, the first end 16 of the first passage is away from the second passage, the second end of the second passage is away from the first passage, and the diameter of the first passage is smaller than the diameter of the second passage, so that when the cooling liquid is input into the cooling channel 4 through the second end, the cooling liquid flows into the first passage through the second passage, and the flow rate of the cooling liquid is increased, so that the cooling liquid is sprayed towards the cutting end, achieving the purpose of rapid cooling.

[0036] The circumferential side wall of the tool body 1 is also uniformly provided with a plurality of second avoiding grooves 9, the plurality of second avoiding grooves 9 and the plurality of accommodating grooves are one-to-one corresponding and in communication;

[0037] Further, the circumferential side wall of the second connecting part 6 is uniformly provided with a plurality of first avoiding grooves for avoiding the blades 2;

[0038] Further, the circumferential side wall of the second connecting part 6 is also uniformly provided with a plurality of protection parts 8 for protecting the machined part, and the protection part 8 is located on the side of the first end 16 away from the first avoiding groove.

[0039] Working principle: the tool body 1 is rotated through the external structure, so as to cut the machined part, and during the cutting process, the blades 2 and the machined part are in continuous contact, thereby generating heat, the cooling liquid is input into the cooling channel 4 from the second end, and finally the cooling liquid is sprayed from the first end 16 towards the cutting end, achieving the purpose of cooling the blades 2, and the area of the machined part in contact with the cutting end can be cooled;

[0040] As the blades 2 contact the machined part, the cuttings at the cutting position are rolled up and hit the protection part 8 through the second avoiding groove, so that the protection part 8 can avoid the cuttings hitting the surface of the machined part, avoiding the cuttings with high temperature damaging the machined part, and ensuring the processing quality.

[0041] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features disclosed in the present application (but not limited to) with similar functions to form technical solutions.

Claims

1. A cutting tool with an in-line cold cap, characterized by, The utility model relates to a cutting tool, including: A cutter body (1) is evenly provided with a plurality of blades (2) on the bottom of the circumferential side wall, the blade (2) has a cutting end, and the bottom of the cutter body (1) is provided with a groove; An inner cooling cover plate (3) is arranged in the groove and is matched with the groove, a plurality of cooling channels (4) are arranged in the inner cooling cover plate (3) corresponding to the plurality of blades (2), the cooling channel (4) has a first end (16), the first end (16) is communicated with the bottom circumferential side wall of the inner cooling cover plate (3), and the first end (16) is directed to the cutting end for outputting cooling liquid to the cutting end.

2. A cutting tool with an inlaid cold cap according to claim 1, characterized in that, The inner cooling cover plate (3) includes a first connecting part (5) and a second connecting part (6), the first connecting part (5) is a circular truncated cone structure, which is arranged in the groove and matched with the groove, the second connecting part (6) is fixedly connected coaxially at the bottom of the first connecting part (5), and the diameter of the second connecting part (6) is greater than the diameter of the cutter body (1), a plurality of first avoiding grooves (7) are uniformly arranged on the circumferential side wall of the second connecting part (6) for avoiding the blades (2).

3. A cutting tool with an inlaid cold cap according to claim 2, characterized in that, The cooling channel (4) also has a second end, the second end is communicated with the top of the first connecting part (5), the cooling channel (4) includes a first passage and a second passage which are communicated, one end of the first passage away from the second passage is the first end (16), one end of the second passage away from the first passage is the second end, and the diameter of the first passage is smaller than the diameter of the second passage.

4. The cutting tool with an inlaid cold cap of claim 2, wherein, A first through hole is arranged on the cutter body (1) along the axial direction of the cutter body (1), the first through hole is communicated with the groove, and the top of the first connecting part (5) corresponds to the first through hole; a first mounting hole (10) is arranged in the groove along the axial direction of the cutter body (1), a second mounting hole (11) is arranged on the inner cooling cover plate (3), and a first mounting member (12) extends into the first mounting hole (10) through the second mounting hole (11).

5. The cutting tool with an inlaid cold cap of claim 1 wherein, A plurality of accommodating grooves are arranged on the circumferential side wall of the cutter body (1), the plurality of accommodating grooves correspond to the plurality of blades (2) one by one, the accommodating grooves are used for accommodating the blades (2), a third mounting hole is arranged in the accommodating groove, a fourth mounting hole is arranged on the blade (2), and a second mounting member (13) extends into the third mounting hole through the fourth mounting hole.

6. A cutting tool with an inlaid cold cap according to claim 5, characterized in that, A plurality of adjusting holes (14) are further arranged on the circumferential side wall of the cutter body (1), the plurality of adjusting holes (14) correspond to the plurality of accommodating grooves one by one and are communicated, the adjusting holes (14) are located above the accommodating grooves, an adjusting member (15) is movably arranged in the adjusting hole (14) and is used for adjusting the position of the blade (2).

7. The cutting tool with an inlaid cold cap of claim 2 wherein, The second connecting part (6) is uniformly provided with a plurality of protection parts (8) corresponding to the plurality of blades (2).

8. The cutting tool with an inlaid cold cap of claim 5, wherein, The circumferential side wall of the tool body (1) is also uniformly provided with a plurality of second avoiding grooves (9), the plurality of second avoiding grooves (9) and the plurality of accommodating grooves one-to-one correspond, and are communicated with the accommodating grooves.

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