Novel self-rotating turning tool

Abstract

The utility model discloses a novel self-rotating turning tool which comprises a tool body, a tool containing part is arranged at one end of the tool body, and a positioning hole is formed in the tool containing part in a penetrating mode. The lower end of the supporting and positioning column is detachably connected into the positioning hole; the cutter blade is rotationally connected to the upper end of the supporting and positioning column in a sleeving manner; the limiting pressing plate is detachably arranged on the cutter body, the limiting pressing plate is located above the supporting positioning column and used for vertically limiting the cutter blade, and a fit clearance is reserved between the limiting pressing plate and the cutter blade; when the cutting edge of the cutter blade is in contact with a machined product, the cutter blade continuously rotates along the supporting positioning column so as to change the position of the cutting edge of the cutter blade for cutting machining. The service life of the turning tool is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of turning tools, in particular to a novel self-rotating turning tool. Background Art

[0002] A turning tool is a tool used for turning operations in metal processing. Turning is a common metal processing method, in which the workpiece is rotated and the tool is used to cut the workpiece to remove materials, so that the workpiece reaches the required shape and size. The design and material selection of the turning tool will be adjusted according to factors such as the processed material, shape requirements and processing conditions to ensure efficient and accurate completion of the processing task.

[0003] At present, in the existing technology, the position of the tool edge is fixed during the machining process of the machine tool. During the process of cutting metal materials with the turning tool, a large amount of heat will be generated at the tool edge due to cutting, and then a metal oxide layer will be formed, resulting in the tool edge no longer being sharp. Therefore, the service life of the turning tool is short and the durability is poor. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a novel self-rotating turning tool for improving the service life of the turning tool.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a novel self-rotating turning tool, comprising:

[0006] A tool body, one end of the tool body is provided with a tool placement part, and a positioning hole is penetrated through the tool placement part;

[0007] A support positioning column, the lower end of the support positioning column is detachably connected in the positioning hole;

[0008] A frustum-shaped cutting insert, the cutting insert is rotatably sleeved on the upper end of the support positioning column;

[0009] A limit pressing plate, the limit pressing plate is detachably arranged on the tool body, the limit pressing plate is located above the support positioning column and is used for vertically limiting the cutting insert, and a fitting gap is left between the limit pressing plate and the cutting insert;

[0010] When the edge of the cutting insert contacts the processed product, the cutting insert continuously rotates along the support positioning column to change the position of the edge of the cutting insert for cutting processing.

[0011] Further, a first cooling fluid inlet is provided on one side surface of the tool body. A first fluid passage is provided inside the tool body. A first cooling fluid outlet and a flow groove are provided at the upper end of the tool body. The first fluid passage communicates with the first cooling fluid inlet and the first cooling fluid outlet respectively. One end of the flow groove communicates with the first cooling fluid outlet from the side end, and the other end of the flow groove faces the side end of the insert.

[0012] Further, a second cooling fluid inlet is provided on the other side surface of the tool body. The second cooling fluid inlet communicates with the first fluid passage, and a soft plug is placed in the second cooling fluid inlet.

[0013] Further, a coolant communication port is provided at the lower end of the limit pressing plate. A plurality of second cooling fluid outlets are provided at the upper end of the limit pressing plate. Each of the second cooling fluid outlets inclines towards the upper end surface of the insert. A second fluid passage is provided inside the limit pressing plate. The second fluid passage communicates with the coolant communication port and each of the second cooling fluid outlets respectively. The coolant communication port is located above the first cooling fluid outlet and communicates with the first cooling fluid outlet.

[0014] Further, the inclination angle range of each of the second cooling fluid outlets inclining towards the upper end surface of the insert is 30° - 60°.

[0015] Further, an internal thread is provided in the positioning hole. An external thread is provided on the outer wall of the lower end of the support positioning column. The internal thread is adapted to the external thread, and the lower end of the support positioning column is threadedly connected in the positioning hole.

[0016] Further, a threaded hole is provided at the upper end of the limit pressing plate. A threaded groove is provided at the upper end of the tool body. The threaded hole is located directly above the threaded groove. A tightening bolt is threadedly connected in the threaded hole and the threaded groove. The bolt head of the tightening bolt faces towards and presses the limit pressing plate.

[0017] Further, two limit blocks are also provided at the upper end of the tool body. The limit pressing plate is clamped between the two limit blocks.

[0018] Further, the clearance range of the mating clearance is 0.02 mm - 0.1 mm.

[0019] Advantages of the utility model:

[0020] The utility model sets a tool placement part on the tool body, sets a support positioning column on the tool placement part, rotatably sleeving the cutting insert on the upper end of the support positioning column, and at the same time using a limiting pressing plate to limit the upper part of the cutting insert, so that when the cutting edge of the cutting insert contacts the processed product, the cutting insert continuously rotates along the support positioning column to change the position of the cutting edge of the cutting insert for cutting processing, which is beneficial to the cooling of the cutting edge of the cutting insert, improves the oxidation resistance of the cutting edge of the cutting insert, and at the same time makes the wear of the cutting edge of the cutting insert uniform, significantly improving the service life of the turning tool. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural view of the novel self-rotating turning tool in the utility model when contacting the processed product;

[0022] Figure 2 is a side sectional view of the tool body in the utility model;

[0023] Figure 3 is a schematic structural view of the first cooling fluid outlet and the flow groove in the utility model;

[0024] Figure 4 is a schematic structural view of the limiting pressing plate in the utility model.

[0025] Reference Signs: 1, tool body; 2, tool placement part; 3, support positioning column; 4, cutting insert; 5, limiting pressing plate; 6, first cooling fluid inlet; 7, first cooling fluid outlet; 8, flow groove; 9, second cooling fluid inlet; 10, coolant communication port; 11, second cooling fluid outlet; 12, tightening bolt; 13, limiting block. Detailed Description of the Preferred Embodiments

[0026] The following further details the present utility model in conjunction with the drawings and embodiments. The same components are denoted by the same reference signs. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of the specific component, respectively.

[0027] Example 1, referring to Figures 1 to 2 , which is the first embodiment of the present invention. This embodiment provides a novel self-rotating turning tool that can improve the service life of the turning tool, including:

[0028] A tool body 1, with a tool placement part 2 provided at one end of the tool body 1, and a positioning hole penetrating through the tool placement part 2;

[0029] A support positioning column 3, the lower end of the support positioning column 3 being detachably connected in the positioning hole;

[0030] The frustum-shaped cutting insert 4 is rotatably sleeved on the upper end of the support positioning post 3;

[0031] The limit pressing plate 5 is detachably arranged on the tool body 1. The limit pressing plate 5 is located above the support positioning post 3 and is used for vertically limiting the cutting insert 4. There is a fitting gap between the limit pressing plate 5 and the cutting insert 4;

[0032] When the cutting edge of the cutting insert 4 contacts the processed product, the cutting insert 4 continuously rotates along the support positioning post 3 to change the position of the cutting edge of the cutting insert 4 for cutting processing.

[0033] Working principle of Embodiment 1:

[0034] In this embodiment, a tool placement portion 2 is provided on the tool body 1, a support positioning post 3 is provided on the tool placement portion 2, the cutting insert 4 is rotatably sleeved on the upper end of the support positioning post 3, and at the same time, the limit pressing plate 5 is used to limit the upper part of the cutting insert 4. When the cutting edge of the cutting insert 4 contacts the processed product, the cutting insert 4 continuously rotates along the support positioning post 3 to change the position of the cutting edge of the cutting insert 4 for cutting processing, which is beneficial to the cooling of the cutting edge of the cutting insert 4, improves the oxidation resistance of the cutting edge of the cutting insert 4, and at the same time makes the wear of the cutting edge of the cutting insert 4 uniform. Compared with the prior art, the service life of the cutting insert 4 is increased by 5-20 times, so the service life of the turning tool is significantly improved.

[0035] Embodiment 2, referring to Figure 3 , is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a first cooling fluid inlet 6, a first fluid channel, a first cooling fluid outlet 7 and a flow groove 8, which can realize the cleaning of the cutting insert 4 during the cutting process. A first cooling fluid inlet 6 is opened on one side surface of the tool body 1, a first fluid channel is arranged inside the tool body 1, a first cooling fluid outlet 7 and a flow groove 8 are opened at the upper end of the tool body 1. The first fluid channel communicates with the first cooling fluid inlet 6 and the first cooling fluid outlet 7 respectively. One end of the flow groove 8 communicates with the first cooling fluid outlet 7 from the side end, and the other end of the flow groove 8 faces the side end of the cutting insert 4.

[0036] Working principle of Embodiment 2:

[0037] Cooling fluid can be introduced into the first cooling fluid inlet 6. The cooling fluid includes coolant or cooling gas. The cooling fluid flows through the first fluid channel, the first cooling fluid outlet 7, and the flow groove 8 in sequence and sprays toward the side end of the cutting insert 4, realizing the cleaning and cooling of the side end of the cutting insert 4 by using the cooling fluid during the rotation cutting process of the cutting insert 4, and further improving the durability and service life of the cutting insert 4.

[0038] Preferably, a second cooling fluid inlet 9 is provided on the other side surface of the tool body 1. The second cooling fluid inlet 9 communicates with the first fluid passage, and a soft plug is placed in the second cooling fluid inlet 9.

[0039] Specifically, in this embodiment, the second cooling fluid inlet 9 is a pre-set spare inlet for introducing the cooling fluid. When the first cooling fluid inlet 6 can be used normally, the second cooling fluid inlet 9 is blocked with a soft plug. When the first cooling fluid inlet 6 cannot be used normally, the soft plug is taken out from the second cooling fluid inlet 9 and then inserted into the first cooling fluid inlet 6 to prevent leakage from the first cooling fluid inlet 6. Then, the cooling fluid is introduced through the second cooling fluid inlet 9 to avoid the inability to clean the cutting insert 4 normally due to the blockage of the first cooling fluid inlet 6.

[0040] Example 3, referring to Figure 4 This is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a coolant communication port 10, a second cooling fluid outlet 11 and a second fluid passage, which can cool and dissipate heat from the cutting insert 4 and improve its service life. A coolant communication port 10 is provided at the lower end of the limit pressing plate 5, and a plurality of second cooling fluid outlets 11 are provided at the upper end of the limit pressing plate 5. Each second cooling fluid outlet 11 is inclined towards the upper end surface of the cutting insert 4. A second fluid passage is provided inside the limit pressing plate 5, and the second fluid passage communicates with the coolant communication port 10 and each second cooling fluid outlet 11 respectively. The coolant communication port 10 is located above the first cooling fluid outlet 7 and communicates with the first cooling fluid outlet 7.

[0041] Working principle of Example 3:

[0042] When the cooling fluid sprays out from the first cooling fluid outlet 7, a part of it sprays towards the side end of the cutting insert 4 through the flow groove 8 for cleaning the cutting insert 4, and the other part flows into the second fluid passage through the coolant communication port 10 and finally sprays out from each second cooling fluid outlet 11 to effectively dissipate heat from the top of the cutting insert 4.

[0043] Preferably, the inclination angle range of each second cooling fluid outlet 11 inclined towards the upper end surface of the cutting insert 4 is 30° - 60°.

[0044] Specifically, in this embodiment, when the inclination angle range of each second cooling fluid outlet 11 inclined towards the upper end surface of the cutting insert 4 is between 30° and 60°, it can ensure that the speed and angle of the cooling fluid flowing towards the upper end of the cutting insert 4 are in an efficient range, thereby ensuring the cooling effect on the cutting insert 4.

[0045] Preferably, the positioning hole is provided with an internal thread, and the lower outer wall of the support positioning column 3 is provided with an external thread. The internal thread is adapted to the external thread, and the lower end of the support positioning column 3 is threadedly connected in the positioning hole.

[0046] Specifically, in this embodiment, by matching the support positioning post 3 with the positioning hole, the installation and disassembly of the support positioning post 3 are facilitated, which is convenient for later maintenance.

[0047] Preferably, a threaded hole is provided at the upper end of the limit pressing plate 5, and a threaded groove is provided at the upper end of the tool body 1. The threaded hole is directly above the threaded groove. A tightening bolt 12 is threadedly connected in the threaded hole and the threaded groove, and the bolt head of the tightening bolt 12 faces the pressing limit pressing plate 5.

[0048] Specifically, in this embodiment, by providing the tightening bolt 12, the convenient installation and disassembly of the limit pressing plate 5 and the tool body 1 are realized.

[0049] Preferably, two limit blocks 13 are further provided at the upper end of the tool body 1, and the limit pressing plate 5 is clamped between the two limit blocks 13.

[0050] Specifically, in this embodiment, by providing the two limit blocks 13, the horizontal limit of the limit pressing plate 5 is realized, and the connection stability between the limit pressing plate 5 and the tool body 1 is improved.

[0051] Preferably, the clearance range of the fit clearance is 0.02 mm - 0.1 mm.

[0052] Specifically, in this embodiment, during the continuous rotation of the cutting insert 4 along the support positioning post 3, it will shake in the vertical direction. When the fit clearance between the limit pressing plate 5 and the cutting insert 4 is set between 0.02 mm and 0.1 mm, it can not only ensure that the cutting insert 4 shakes less, but also does not affect the rotary grinding effect of the cutting insert 4.

[0053] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A novel self-rotating turning tool, characterized in that, Comprising: A tool body (1), one end of the tool body (1) is provided with a tool placement portion (2), and a positioning hole is penetratingly provided on the tool placement portion (2); A support positioning post (3), the lower end of the support positioning post (3) is detachably connected in the positioning hole; A frustum-shaped cutting insert (4), the cutting insert (4) is rotatably sleeved on the upper end of the support positioning post (3); A limiting pressure plate (5), the limiting pressure plate (5) is detachably arranged on the tool body (1), the limiting pressure plate (5) is located above the support positioning post (3), and is used for vertically limiting the cutting insert (4), and a fitting gap is left between the limiting pressure plate (5) and the cutting insert (4); When the cutting edge of the cutting insert (4) contacts the processed product, the cutting insert (4) continuously rotates along the support positioning post (3) to change the position of the cutting edge of the cutting insert (4) for cutting processing.

2. The novel self-rotating turning tool according to claim 1, wherein: A first cooling fluid inlet (6) is opened on one side surface of the tool body (1), a first fluid channel is arranged inside the tool body (1), a first cooling fluid outlet (7) and a flow groove (8) are opened at the upper end of the tool body (1), the first fluid channel respectively communicates with the first cooling fluid inlet (6) and the first cooling fluid outlet (7), one end of the flow groove (8) communicates with the first cooling fluid outlet (7) from the side end, and the other end of the flow groove (8) faces the side end of the cutting insert (4).

3. The novel self-rotating turning tool according to claim 2, wherein: A second cooling fluid inlet (9) is opened on the other side surface of the tool body (1), the second cooling fluid inlet (9) communicates with the first fluid channel, and a soft plug is placed in the second cooling fluid inlet (9).

4. The novel self-rotating turning tool according to claim 2, wherein: A coolant communication port (10) is opened at the lower end of the limiting pressure plate (5), a plurality of second cooling fluid outlets (11) are opened at the upper end of the limiting pressure plate (5), each of the second cooling fluid outlets (11) inclines towards the upper end surface of the cutting insert (4), a second fluid channel is arranged inside the limiting pressure plate (5), the second fluid channel respectively communicates with the coolant communication port (10) and each of the second cooling fluid outlets (11), the coolant communication port (10) is located above the first cooling fluid outlet (7) and communicates with the first cooling fluid outlet (7).

5. The novel self-rotating turning tool according to claim 4, wherein: The inclination angle range of each of the second cooling fluid outlets (11) inclining towards the upper end surface of the cutting insert (4) is 30° - 60°.

6. The novel self-rotating turning tool according to claim 1, wherein: Internal threads are provided in the positioning hole, external threads are provided on the outer wall of the lower end of the support positioning post (3), the internal threads are adapted to the external threads, and the lower end of the support positioning post (3) is threadedly connected in the positioning hole.

7. The novel self-rotating turning tool according to claim 1, characterized in that: A threaded hole is opened at the upper end of the limiting pressure plate (5), a threaded groove is opened at the upper end of the tool body (1), the threaded hole is located directly above the threaded groove, a tightening bolt (12) is threadedly connected in the threaded hole and the threaded groove, and the bolt head of the tightening bolt (12) faces towards and presses the limiting pressure plate (5).

8. The novel self-rotating turning tool according to claim 1, wherein: Two limit blocks (13) are also provided at the upper end of the tool body (1), and the limit pressing plate (5) is clamped between the two limit blocks (13).

9. The novel self-rotating turning tool according to claim 1, characterized in that: The clearance range of the mating clearance is 0.02 mm - 0.1 mm.

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