Thread milling cutter with chip breaking function

Abstract

The utility model belongs to the field of milling cutters, particularly relates to a thread milling cutter with a chip breaking function, and aims to solve the problem that cooling liquid is wasted in the existing cooling process, the thread milling cutter comprises a mounting head, and one end of the mounting head is fixedly connected with a fixed connecting rod. Cooling liquid is injected into the cooling liquid tank from the cooling liquid injection port, the cooling liquid tank can store the cooling liquid for use, the problem that the cooling liquid is inconvenient to input in the operation process can be solved, the two ends of the conveying hose are connected with the liquid outlet and the liquid conveying port respectively, and the cooling liquid can be conveyed to the liquid conveying port through the conveying hose. The rubber tube at the liquid conveying opening can be extruded and bent, the second rotating ring can be rotated to drive the rubber tube to rotate towards the interior of the folding groove when the cooling liquid is not used, the rubber tube is extruded by the folding groove to be bent to close the tube opening, flow blocking can be conducted when the cooling liquid is not used, and waste of a large amount of cooling liquid is avoided.

Description

Technical Field

[0001] The utility model relates to a thread milling cutter, in particular to a thread milling cutter with a chip breaking function, belonging to the technical field of milling cutters. Background Art

[0002] Traditional thread machining methods primarily involve turning with a thread turning tool or manual tapping and threading with taps and dies. Advances in CNC machining technology, particularly the advent of three-axis CNC machining systems, have made CNC milling a more advanced thread machining method possible. Compared to traditional thread machining methods, thread milling offers significant advantages in precision and efficiency, and is not restricted by thread structure or direction of rotation.

[0003] In the prior art, a thread milling cutter disclosed in announcement number CN209986367U includes a milling cutter shank, a milling cutter rod, a cutting edge, and a chip groove. A milling cutter rod is installed below the milling cutter shank, and a cutting edge is uniformly engraved on the outer surface below the milling cutter rod. A chip groove is provided on one side of the cutting edge. A first cooling groove is provided at the lower end of the milling cutter shank, a coolant inlet is provided on one side above the first cooling groove, and cooling sub-grooves are uniformly provided below the first cooling groove. Coolant flows into the first cooling groove through the coolant inlet, and then flows from the first cooling groove into the cooling sub-grooves and the second cooling groove, so that the coolant can quickly cool the cutting edge, ensuring that the cutting edge will not be severely damaged due to overheating.

[0004] When the above technical solution is in use, the cutting edge of the milling cutter is cooled by allowing the coolant to enter the first cooling groove from the cooling inlet, and then flowing the coolant to the second cooling groove through the first cooling groove. However, during use, the first cooling liquid groove and the second cooling liquid groove are directly connected, and the coolant needs to be continuously input into the first cooling groove from the coolant inlet during use, and then flow into the second cooling groove from the first cooling groove. However, since the coolant port is directly opened on the milling cutter handle, when the milling cutter handle drives the milling cutter to rotate, it drives the coolant port to rotate together, which makes it difficult to input the coolant into the first cooling groove and the second cooling groove. Moreover, after the coolant is input into the cooling groove, due to the connection structure between the first cooling groove and the second cooling groove, there is no component between the two to control the outflow of the coolant. Therefore, after the milling cutter is used, the coolant input into the cooling groove will still flow out uncontrolled, resulting in the problem of coolant waste during the cooling process. In view of this, a thread milling cutter with a chip breaking function is provided to overcome the above defects. Utility Model Content

[0005] The utility model provides a thread milling cutter with a chip breaking function in order to solve the problem of waste of coolant in the cooling process.

[0006] The utility model achieves the above-mentioned object through the following technical solutions: a thread milling cutter with a chip breaking function, comprising a mounting head, one end of the mounting head is fixedly connected to a fixed connecting rod, one end of the fixed connecting rod is provided with a mounting hole, the inner wall of the mounting hole is movably connected to a tool rod, the outer wall of the tool rod is provided with a docking port, one end of the tool rod is provided with a fixing groove, the other end of the tool rod is fixedly connected to a cutter head, and one end of the cutter head is provided with a cooling liquid channel;

[0007] A coolant tank is provided inside the mounting head, a coolant injection port is provided at the top of the coolant tank, a rotating ring 1 is rotatably connected to the outer side of the mounting head, a liquid outlet is provided on the inner wall of the coolant tank, one end of the liquid outlet is fixedly connected to a delivery hose, a receiving groove is provided on one side of the coolant tank, the delivery hose is fixedly connected to the infusion port through the connecting groove, a rotating ring 2 is fixed on the outer wall of the infusion port, one end of the infusion port is fixedly connected to a rubber tube, and a folding groove is provided on one side of the rubber tube.

[0008] As a further solution of the present invention: a rotating structure is formed between the rotating ring 1 and the mounting head, and a rotating structure is formed between the rotating ring 2 and the fixed connecting rod through the folding groove.

[0009] As a further solution of the present invention: the infusion port is connected to the cooling liquid tank through the delivery hose and the liquid outlet, and the containing tank and the connecting tank are connected to each other.

[0010] As a further solution of the present invention: a second spring is fixed to the inner wall of the mounting head, and one end of the second spring is fixedly connected to a push block.

[0011] As a further solution of the present invention: a sliding groove is opened at one end inside the mounting head, a slider is slidably connected inside the sliding groove, a clamping block is fixed at one end of the slider, and a spring is fixedly connected to the outer wall of the slider.

[0012] As a further solution of the present invention: a chip removal groove is provided on the outer surface of the cutter head, and a chip breaking blade is provided inside the chip removal groove.

[0013] As a further solution of the present invention, the cutter head and the cutter rod are an integral fixed structure, and the chip breaker blade is an integral fixed structure with the cutter head through the chip removal groove.

[0014] The beneficial effects of the utility model are:

[0015] 1. The coolant inlet is exposed by rotating the first rotating ring, and the coolant is injected into the coolant tank from the coolant inlet. The coolant tank can store the coolant for easy use, which can solve the problem of inconvenient coolant input during operation. The two ends of the delivery hose are respectively connected to the liquid outlet and the infusion port. The coolant can be delivered to the infusion port through the delivery hose. The rubber tube at the infusion port can be squeezed and bent. When the coolant is not in use, the second rotating ring can be rotated to drive the rubber tube to rotate toward the folding groove. The rubber tube is squeezed by the folding groove to bend and close the tube mouth, so that the coolant can be blocked when it is not in use, avoiding a large amount of coolant waste.

[0016] 2. The infusion port is connected to the coolant tank through the delivery hose and the liquid outlet, which can facilitate the coolant to be input from the coolant tank into the rubber hose, and then into the coolant channel through the rubber hose to cool the cutter head of the milling cutter. The receiving groove is connected to the connecting groove inside the rotating ring 2, and the delivery hose is connected to the bottom of the infusion port on the rotating ring 2 through the connecting groove, which can prevent the delivery hose from being squeezed and pulled and damaged when the rotating ring 2 is rotated;

[0017] 3. The cutter head and the cutter bar are integrated, which can increase the milling strength of the cutter head. The chip breaker blade is integrated with the cutter head through the chip groove. The milling debris can be discharged through the chip groove during the milling process, and the chip breaker blade can cut the debris during the chip removal process to prevent the debris from accumulating in the chip groove and affecting chip removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the mounting head of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the tool bar of the utility model;

[0021] Figure 4 This is a side elevation view of the mounting head and the fixed connecting rod of the present invention;

[0022] Figure 5 It is an enlarged view of point A of the present utility model.

[0023] In the figure: 1. Mounting head; 2. Sliding groove; 3. Spring 1; 4. Slider; 5. Clamp; 6. Spring 2; 7. Push block; 8. Coolant groove; 9. Coolant injection port; 10. Rotating ring 1; 11. Liquid outlet; 12. Fixed connecting rod; 13. Delivery hose; 14. Receiving groove; 15. Rotating ring 2; 16. Connecting groove; 17. Infusion port; 18. Rubber tube; 19. Folding groove; 20. Mounting hole; 21. Tool bar; 22. Fixed groove; 23. Docking port; 24. Coolant channel; 25. Cutter head; 26. Chip groove; 27. Chip breaker blade. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0025] like Figures 1 to 5 As shown, a thread milling cutter with a chip breaking function includes a mounting head 1, one end of the mounting head 1 is fixedly connected to a fixed connecting rod 12, one end of the fixed connecting rod 12 is provided with a mounting hole 20, the fixed connecting rod 12 and the mounting head 1 are an integrated fixed structure, the mounting hole 20 can be used to facilitate the installation of a tool rod 21 into the fixed connecting rod 12 and the mounting head 1, the inner wall of the mounting hole 20 is movably connected to the tool rod 21, the outer wall of the tool rod 21 is provided with a docking port 23, one end of the tool rod 21 is provided with a fixing groove 22, the other end of the tool rod 21 is provided with a cutter head 25, one end of the cutter head 25 is provided with a cooling liquid channel 24, which can be docked with the rubber tube 18 through the docking port 23, so that the coolant in the rubber tube 18 is introduced into the cooling liquid channel 24 inside the tool rod 21 through the docking port 23, and the coolant is input to the bottom of the cutter head 25 through the cooling liquid channel 24 to cool the cutter head 25 and the cutting edge, so as to prevent the cutter head 25 from being damaged due to excessive temperature;

[0026] A cooling liquid tank 8 is provided inside the mounting head 1, and a cooling liquid injection port 9 is provided at the top of the cooling liquid tank 8. A rotating ring 10 is rotatably connected to the outer side of the mounting head 1. A liquid outlet 11 is provided on the inner wall of the cooling liquid tank 8. One end of the liquid outlet 11 is fixedly connected to a delivery hose 13. A receiving groove 14 is provided on one side of the cooling liquid tank 8. The delivery hose 13 is fixedly connected to an infusion port 17 through a connecting groove 16. A rotating ring 2 15 is fixed on the outer wall of the infusion port 17. One end of the infusion port 17 is fixedly connected to a rubber tube 18. A folding groove 19 is provided on one side of the rubber tube 18. The cooling liquid injection port 9 is exposed by rotating the rotating ring 10, and the cooling liquid is injected into the cooling liquid tank 8 from the cooling liquid injection port 9. The cooling liquid can be stored for use. The cooling liquid tank 8 that can store the cooling liquid can solve the problem of inconvenience in inputting the cooling liquid during operation. There is a liquid outlet 11 at the bottom of the housing, through which coolant can be input into the delivery hose 13, and the excessively long delivery hose 13 can be accommodated through the accommodating groove 14, and the accommodating groove 14 is communicated with the connecting groove 16 inside the rotating ring 2 15. The delivery hose 13 is connected to the bottom of the infusion port 17 on the rotating ring 2 15 through the connecting groove 16, which can prevent the delivery hose 13 from being squeezed and pulled and damaged when the rotating ring 2 15 is rotated. The delivery hose 13 is connected to the rubber tube 18 through the infusion port 17, and the rubber tube 18 can be squeezed and bent. When the coolant is not in use, the rotating ring 2 15 can be rotated to drive the rotating ring 2 15 to rotate toward the folding groove 19, and the folding groove 19 is squeezed to bend it to close the tube mouth, preventing the coolant from flowing from the rubber tube 18, so that the coolant can be blocked when it is not in use, thereby avoiding a large amount of coolant waste. Example 2

[0027] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0028] A rotating structure is formed between the rotating ring 10 and the mounting head 1, and a rotating structure is formed between the rotating ring 2 15 and the fixed connecting rod 12 through the folding groove 19. The coolant injection port 9 is exposed by rotating the rotating ring 10, and the coolant is injected into the coolant tank 8 from the coolant injection port 9. The coolant tank 8 can store the coolant for use, which can solve the problem of inconvenient coolant input during operation. The two ends of the delivery hose 13 are respectively connected to the bottom of the liquid outlet 11 and the infusion port 17. The coolant can be delivered to the infusion port 17 through the delivery hose 13. The rubber tube 18 at the infusion port 17 can be squeezed and bent. When the coolant is not in use, the rotating ring 2 15 can be rotated to drive the rotating ring 2 15 to rotate toward the folding groove 19, and the folding groove 19 is squeezed to bend it to close the tube mouth, preventing the coolant from flowing from the rubber tube 18, so that the coolant can be blocked when it is not in use, avoiding a large amount of coolant waste.

[0029] The infusion port 17 forms a communication structure with the coolant tank 8 through the delivery hose 13 and the liquid outlet 11, and a communication structure is formed between the accommodating tank 14 and the connecting tank 16. The infusion port 17 is connected to the coolant tank 8 through the delivery hose 13 and the liquid outlet 11, which can facilitate the input of coolant from the coolant tank 8 into the rubber tube 18, and then into the cooling liquid channel 24 through the rubber tube 18 to cool the cutter head 25 of the milling cutter. The accommodating tank 14 is connected to the connecting tank 16 inside the rotating ring 2 15, and the delivery hose 13 is connected to the bottom of the infusion port 17 on the rotating ring 2 15 through the connecting tank 16, which can prevent the delivery hose 13 from being squeezed and pulled and damaged when the rotating ring 2 15 is rotated.

[0030] A spring 26 is fixed to the inner wall of the mounting head 1, and one end of the spring 26 is fixedly connected to a pushed block 7. By pushing the knife rod 21, one end of the knife rod 21 pushes the pushed block 7. When the pushed block 7 is pushed, it can move into the two sliders 4 through the spring 26, and the slider 4 is pushed by the pushed block 7, so that the slider 4 moves in the sliding groove 2 through the spring 1 3.

[0031] A sliding groove 2 is provided at one end of the interior of the mounting head 1, and a slider 4 is slidably connected to the interior of the sliding groove 2. A clamping block 5 is fixed to one end of the slider 4, and a spring 1 3 is fixed to the outer wall of the slider 4. The slider 4 moves in the sliding groove 2 through the spring 1 3, and when the slider 4 moves, it can drive the clamping block 5 to move toward the interior of the sliding groove 2, so that the tool rod 21 can enter the interior of the clamping block 5, and by releasing the push on the tool rod 21, the pushed block 7 rebounds through the spring 2 6, so that the slider 4 and the clamping block 5 clamp the fixed groove 22 of the tool rod 21.

[0032] The outer surface of the cutter head 25 is provided with a chip groove 26, and the interior of the chip groove 26 is provided with a chip breaking blade 27. The milling chips can be discharged through the chip groove 26, and the chip breaking blade 27 can cut the chips in the chip groove 26 to prevent them from accumulating in the chip groove 26.

[0033] The cutter head 25 and the tool rod 21 are an integrated fixed structure, and the chip breaking blade 27 is an integrated fixed structure with the cutter head 25 through the chip groove 26. The cutter head 25 and the tool rod 21 are integrated, which can increase the milling strength of the cutter head 25. The chip breaking blade 27 is an integrated structure with the cutter head 25 through the chip groove 26. The milling chips can be discharged through the chip groove 26 during the milling process, and the chips can be cut off through the chip breaking blade 27 during the chip discharge process to prevent the chips from accumulating in the chip groove 26 and affecting chip discharge.

[0034] Working principle: The tool rod 21 of the thread milling cutter is installed into the mounting head 1 and the fixed connecting rod 12 through the mounting hole 20, and one end of the tool rod 21 is pushed to push the pushed block 7 by pushing the tool rod 21. When the pushed block 7 is pushed, it moves toward the two sliders 4 through the spring 2 6, and the slider 4 is pushed by the pushed block 7, so that the slider 4 moves in the sliding groove 2 through the spring 1 3. When the slider 4 moves, it drives the clamping block 5 to move toward the inside of the sliding groove 2, so that the tool rod 21 can enter the inside of the clamping block 5, and by releasing the push on the tool rod 21, the pushed block 7 rebounds through the spring 2 6, so that the slider 4 and the clamping block 5 clamp the fixed groove 22 of the tool rod 21, and the tool rod 21 can be fixed and clamped. The free tool rod 21 rotates in the mounting hole 20. When removing the tool rod 21, the tool rod 21 can be pushed to open the slider 4 to allow the clamping block 5 to loosen the clamping of the fixed groove 22. At the same time, the tool rod 21 is rotated to allow the outer walls of the tool rod 21 on both sides of the fixed groove 22 to support the clamping block 5. The tool rod 21 is disassembled during the supporting process, which can facilitate the replacement of the damaged tool rod 21. A coolant tank 8 is also provided inside the mounting head 1. A coolant injection port 9 is provided on one side of the inner wall of the coolant tank 8. The coolant injection port 9 is exposed by rotating the rotating ring 10, and the coolant is injected into the coolant tank 8 from the coolant injection port 9. The coolant can be stored for use. The coolant tank 8 that can store coolant can solve the cooling problem. In order to solve the problem of inconvenience in inputting liquid during operation, there is a liquid outlet 11 at the bottom of the coolant tank 8, through which the coolant can be input into the delivery hose 13, and the overlong delivery hose 13 can be accommodated through the receiving groove 14, and the receiving groove 14 is communicated with the connecting groove 16 inside the rotating ring 15. The delivery hose 13 is connected to the bottom of the infusion port 17 on the rotating ring 15 through the connecting groove 16, which can prevent the delivery hose 13 from being squeezed and pulled and damaged when the rotating ring 15 is rotated. The delivery hose 13 is connected to the rubber tube 18 through the infusion port 17. The rubber tube 18 can be squeezed and bent. When the coolant is not in use, the rotating ring 15 can be rotated so that the rotating ring 15 drives the rubber tube 18 to rotate toward the folding groove 19. , and is squeezed by the folding groove 19 to bend and close the tube mouth, preventing the coolant from flowing from the rubber tube 18, so that the coolant can be blocked when it is not in use, avoiding a large amount of coolant waste. When the milling cutter is running, the rotating ring 21 can be rotated to return the rubber tube 18 to its original position. At the moment of popping out, the rubber tube 18 is docked with the docking port 23 on the tool rod 21 to allow the coolant to flow into the coolant channel 24 to cool the cutter head 25 and the blade. A chip groove 26 and a chip breaker blade 27 are provided on the cutter head 25. The chip groove 26 can be used to discharge the chips caused by milling from here, and the chip breaker blade 27 can also be used to cut the chips during the chip removal process to prevent the chips from accumulating in the chip groove 26 and affecting chip removal.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A thread milling cutter with chip breaking function, comprising a mounting head (1), characterized in that: One end of the mounting head (1) is fixedly connected to a fixed connecting rod (12), one end of the fixed connecting rod (12) is provided with a mounting hole (20), the inner wall of the mounting hole (20) is movably connected to a knife rod (21), the outer wall of the knife rod (21) is provided with a docking port (23), one end of the knife rod (21) is provided with a fixing groove (22), the other end of the knife rod (21) is provided with a knife head (25), and one end of the knife head (25) is provided with a cooling liquid channel (24); A cooling liquid tank (8) is provided inside the mounting head (1), a cooling liquid injection port (9) is provided at the top of the cooling liquid tank (8), a rotating ring (10) is rotatably connected to the outer side of the mounting head (1), a liquid outlet (11) is provided on the inner wall of the cooling liquid tank (8), one end of the liquid outlet (11) is fixedly connected to a delivery hose (13), a receiving groove (14) is provided on one side of the cooling liquid tank (8), the delivery hose (13) is fixedly connected to an infusion port (17) through a connecting groove (16), a rotating ring (15) is fixed on the outer wall of the infusion port (17), one end of the infusion port (17) is fixedly connected to a rubber tube (18), and one side of the rubber tube (18) is provided with a folding groove (19).

2. A thread milling cutter with chip breaking function according to claim 1, characterized in that: A rotating structure is formed between the rotating ring 1 (10) and the mounting head (1), and a rotating structure is formed between the rotating ring 2 (15) and the fixed connecting rod (12) via the folding groove (19).

3. The thread milling cutter with chip breaking function according to claim 1, characterized in that: The infusion port (17) forms a communication structure with the cooling liquid tank (8) through the delivery hose (13) and the liquid outlet (11), and the receiving tank (14) forms a communication structure with the connecting tank (16).

4. The thread milling cutter with chip breaking function according to claim 1, characterized in that: A second spring (6) is fixed to the inner wall of the mounting head (1), and one end of the second spring (6) is fixedly connected to a push block (7).

5. The thread milling cutter with chip breaking function according to claim 4, characterized in that: A sliding groove (2) is provided at one end of the interior of the mounting head (1), a slider (4) is slidably connected to the interior of the sliding groove (2), a clamping block (5) is fixed to one end of the slider (4), and a spring (3) is fixed to the outer wall of the slider (4).

6. The thread milling cutter with chip breaking function according to claim 1, characterized in that: The outer surface of the cutter head (25) is provided with a chip removal groove (26), and a chip breaking blade (27) is provided inside the chip removal groove (26).

7. The thread milling cutter with chip breaking function according to claim 6, characterized in that: The cutter head (25) and the cutter rod (21) are an integral fixed structure, and the chip breaker blade (27) is an integral fixed structure with the cutter head (25) via the chip removal groove (26).

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