High-hardness die alloy milling cutter with cutting edge protection function

Abstract

The utility model belongs to the technical field of cutters, particularly relates to a high-hardness die alloy milling cutter with a cutting edge protection function, and aims to solve the problems that an existing milling cutter is formed by integral forging, so that when a cutter head part is damaged, the cutter head part needs to be integrally replaced, the expenditure of financial resources is increased, and the working efficiency is reduced. Comprising a milling cutter seat, a chip groove is formed in the surface of the milling cutter seat, a blade groove is formed in one side of the chip groove, a threaded block is fixed to the bottom end of the milling cutter seat, and a cutter bar is arranged on the outer side of the threaded block. The milling cutter seat is rotated to enable the threaded block at the bottom end of the milling cutter seat to be in threaded connection with the cutter bar, and then the fastening screw is rotated, so that the milling cutter seat and the cutter bar are assembled, the milling cutter seat is convenient to replace when damaged, and the situation that the milling cutter is formed by integral forging, so that integral replacement is needed when a cutter head part is damaged is avoided; therefore, the financial expenditure is increased and the working efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to an alloy milling cutter, in particular to a high-hardness die alloy milling cutter with a cutting edge protection function, belonging to the technical field of cutting tools. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. Each tooth cuts off the excess of the workpiece intermittently in sequence during operation. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines.

[0003] In the prior art, a patent specification with announcement number CN214815179U discloses a milling cutter, comprising a shank, a neck and a cutting portion connected in sequence, wherein the chip groove is defined by a first section and a second section, wherein the first section is a plane extending along the axial direction and passing through the radial direction, and the second section is an arc surface perpendicular to the plane. In this technical solution, the chip removal capacity of the neck of the milling cutter is improved by reusing the chip groove added to the neck on the basis of the milling cutter, thereby improving the cutting efficiency and cutting quality of the milling cutter during use. At the same time, the milling cutter has a simple structure, is easy to manufacture, is practical, safe and reliable, and is easy to implement, promote and apply.

[0004] However, in the implementation of relevant technologies, it was found that the milling cutter designed above has the following problems: the above technology improves the chip removal capacity of the neck of the milling cutter by further utilizing the chip removal grooves added to the neck on the basis of the milling cutter, thereby improving the cutting efficiency and cutting quality of the milling cutter when in use. However, the milling cutter in this technical solution is forged as a whole, so when the cutter head is damaged, it needs to be replaced as a whole, which not only increases financial expenditure but also reduces work efficiency. In view of this, a high-hardness mold alloy milling cutter with a blade protection function is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model provides a high-hardness die alloy milling cutter with a cutting edge protection function to solve the problem that the milling cutter is forged as a whole, so when the cutter head is damaged, it needs to be replaced as a whole, which not only increases financial expenditure but also reduces work efficiency.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a high-hardness die alloy milling cutter with edge protection function, comprising a milling cutter seat, a surface of the milling cutter seat is provided with a chip groove, and one side of the chip groove is provided with a blade groove;

[0007] A thread block is fixed at the bottom end of the milling cutter seat, a tool rod is arranged on the outside of the thread block, and the tool rod and the thread block are connected by threads;

[0008] An adjusting rod is arranged on the outside of the tool rod, and fastening screws are threadedly connected on both sides of the tool rod. The fastening screws penetrate the inner wall of the tool rod and are threadedly connected with the threaded block. The surface of the milling cutter seat is coated with polyurethane wear-resistant paint, and the surfaces of the tool rod and the adjusting rod are coated with alkyd resin paint.

[0009] As a further solution of the utility model: an adjusting block is arranged inside the blade slot, a double-sided milling blade is arranged on one side of the adjusting block, and a fixing screw is threadedly connected to one side of the double-sided milling blade.

[0010] As a further solution of the utility model: the fixing screw passes through the inside of the adjusting block and is threadedly connected to the milling cutter seat, a sliding groove is opened on the surface of the cutter rod, and a sliding strip is fixed inside the adjusting rod.

[0011] As a further solution of the utility model: a locking structure is formed between the slide groove and the slide bar, and a thread groove is arranged below the slide groove.

[0012] As a further solution of the utility model: a protective ring is arranged on the outer side of the thread groove, and a protective cover is threadedly connected to one side of the protective ring.

[0013] As a further solution of the utility model: a clamping groove is provided inside the knife rod, a return spring is fixed inside the clamping groove, a clamping block is fixed on one side of the return spring, and a clamping groove is provided on the surface of the adjusting rod.

[0014] As a further solution of the utility model: a clamping structure is formed between the clamping block and the clamping groove, a buffer block is arranged below the slide bar, a telescopic rod is fixed to one side of the buffer block, and a compression spring is arranged on the outer side of the telescopic rod.

[0015] As a further solution of the utility model: sliding blocks are fixed on both sides of the buffer block, sliding rods are arranged inside the sliding blocks, and a sliding structure is formed between the sliding blocks and the sliding rods.

[0016] The beneficial effects of the utility model are:

[0017] 1. By rotating the milling cutter seat, the threaded block at the bottom of the milling cutter seat is connected to the tool rod thread, and then the fastening screw is rotated to complete the assembly between the milling cutter seat and the tool rod, which is convenient for replacing the milling cutter seat when it is damaged, avoiding the milling cutter being forged as a whole. Therefore, when the cutter head is damaged, it needs to be replaced as a whole, which not only increases financial expenditure but also reduces work efficiency.

[0018] 2. When the adjusting rod moves toward the cutter bar, the engaging block is pressed, and the reset spring is compressed by the pressure, so that the engaging block shrinks into the engaging groove until it reaches the engaging groove provided on the surface of the adjusting rod for engagement; by providing a protective cover and a protective ring, when the milling cutter is idle, the protective cover can be rotated to provide comprehensive protection for the milling cutter blade, and accidental touch by personnel is avoided, thereby improving the safety of the use of the alloy milling cutter body.

[0019] 3. By providing a double-sided milling blade, when one of the blades is severely worn, the fixing screw can be turned to replace the other blade for milling, without replacing the entire blade, which increases the number of times the tool is used and saves tool wear. By placing adjustment blocks of different thicknesses, the double-sided milling blade can be fine-tuned, which improves work efficiency and facilitates replacement of the double-sided milling blade when it is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the milling cutter seat of the utility model;

[0022] Figure 3 It is a schematic diagram of the partially split structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the internal structure of the knife rod and the adjusting rod of the utility model.

[0024] In the figure: 1. milling cutter seat; 2. cutter bar; 3. adjusting rod; 4. protective ring; 5. protective cover; 6. fastening screw; 7. clamping block; 8. threaded block; 9. chip groove; 10. blade groove; 11. adjusting block; 12. double-sided milling blade; 13. fixing screw; 14. threaded groove; 15. slide groove; 16. slide bar; 17. reset spring; 18. buffer block; 19. slide rod; 20. slider; 21. telescopic rod; 22. compression spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0026] like Figures 1 to 4As shown, a high-hardness die alloy milling cutter with edge protection function comprises a milling cutter seat 1, a surface of the milling cutter seat 1 is provided with a chip groove 9, and one side of the chip groove 9 is provided with a blade groove 10;

[0027] A thread block 8 is fixed to the bottom end of the milling cutter seat 1, a tool rod 2 is arranged on the outside of the thread block 8, and the tool rod 2 and the thread block 8 are threadedly connected;

[0028] An adjusting rod 3 is provided on the outside of the tool rod 2, and fastening screws 6 are threadedly connected on both sides of the tool rod 2. The fastening screws 6 pass through the inner wall of the tool rod 2 and are threadedly connected to the threaded block 8. The surface of the milling cutter seat 1 is coated with polyurethane wear-resistant paint, and the surfaces of the tool rod 2 and the adjusting rod 3 are coated with alkyd resin paint. Embodiment 2

[0029] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0030] An adjusting block 11 is provided inside the blade slot 10, and a double-sided milling blade 12 is provided on one side of the adjusting block 11. A fixing screw 13 is threadedly connected to one side of the double-sided milling blade 12. By providing the double-sided milling blade 12, when one of the blades is severely worn, the fixing screw 13 can be rotated to replace the other blade for milling, and there is no need to replace the blade as a whole, which increases the number of times the tool is used and saves tool wear. By placing adjusting blocks 11 of different thicknesses, the double-sided milling blade 12 can be fine-tuned, which improves work efficiency and facilitates replacement of the double-sided milling blade 12 when it is damaged.

[0031] The fixing screw 13 passes through the interior of the adjusting block 11 and is threadedly connected to the milling cutter seat 1. A sliding groove 15 is provided on the surface of the tool rod 2. A sliding bar 16 is fixed inside the adjusting rod 3. When the adjusting rod 3 moves toward the tool rod 2, the sliding groove 15 and the sliding bar 16 engage with each other, thereby enhancing the stability of the connection between the adjusting rod 3 and the tool rod 2.

[0032] The slide groove 15 and the slide bar 16 form a clamping structure. A thread groove 14 is provided below the slide groove 15. The provision of the thread groove 14 facilitates fixing the protective ring 4 on the knife rod 2 and placing the protective cover 5.

[0033] A protective ring 4 is provided on the outer side of the thread groove 14, and a protective cover 5 is threadedly connected to one side of the protective ring 4. When the milling cutter is idle, the protective cover 5 can be rotated to provide comprehensive protection for the milling cutter blade and avoid accidental touch by personnel, thereby improving the safety of the use of the alloy milling cutter body. Embodiment 3

[0034] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0035] A clamping groove is provided inside the knife bar 2, and a reset spring 17 is fixed inside the clamping groove. A clamping block 7 is fixed on one side of the reset spring 17. A clamping groove is provided on the surface of the adjusting rod 3. When the adjusting rod 3 moves toward the knife bar 2, the clamping block 7 is pressed, and the reset spring 17 is compressed by pressure, so that the clamping block 7 shrinks into the clamping groove until it reaches the clamping groove provided on the surface of the adjusting rod 3 for clamping.

[0036] A snap-fit ​​structure is formed between the snap-fit ​​block 7 and the snap-fit ​​groove, a buffer block 18 is arranged below the slide bar 16, a telescopic rod 21 is fixed to one side of the buffer block 18, a compression spring 22 is arranged on the outer side of the telescopic rod 21, and the compression spring 22 inside the knife rod 2 and the telescopic rod 21 combine to produce a shock-absorbing effect, and the existence of the buffer block 18 can provide a certain buffering effect, thereby reducing the amplitude of the vibration of the device and enhancing the stability of the device.

[0037] Slide blocks 20 are fixed on both sides of the buffer block 18, and slide bars 19 are arranged inside the slide blocks 20. A sliding structure is formed between the slide blocks 20 and the slide bars 19. The sliding connection between the slide blocks 20 and the slide bars 19 facilitates buffering the vibration generated when the milling cutter is working, so that the milling cutter can work stably.

[0038] Working principle: First, turn the milling cutter seat 1 to make the threaded block 8 at the bottom of the milling cutter seat 1 threadedly connected with the cutter bar 2, then turn the fastening screw 6 to complete the assembly between the milling cutter seat 1 and the cutter bar 2, and then turn the fixing screw 13 to fix the adjustment block 11 and the double-sided milling blade 12 on the blade groove 10 opened next to the chip groove 9. The protective ring 4 is fixed to the cutter bar 2 through the threaded groove 14, and the protective cover 5 is turned to the protective ring 4. When the milling cutter is idle, the protective cover 5 can be turned to provide comprehensive protection for the milling cutter blade and avoid accidental touch by personnel, thereby improving the safety of the alloy milling cutter body. The adjusting rod 3 is moved to the cutter bar 2. While moving, the engaging block 7 is pressed, and the reset spring 17 is compressed by pressure, so that the engaging block 7 shrinks into the engaging groove until it reaches the engaging groove opened on the surface of the adjusting rod 3 for engagement. At the same time, the slide groove 15 engages with the slide bar 16, thereby enhancing the stability of the connection between the adjusting rod 3 and the tool rod 2. Finally, the compression spring 22 inside the tool rod 2 is combined with the telescopic rod 21 to produce a shock-absorbing effect, and the presence of the buffer block 18 can provide a certain buffering effect, thereby reducing the amplitude of the vibration of the device and enhancing the stability of the device. The sliding connection between the slider 20 and the slide bar 19 is convenient for buffering the vibration generated when the milling cutter is working, so that the milling cutter can work stably.

[0039] It is obvious 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 features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-hardness die alloy milling cutter with a cutting edge protection function, comprising a milling cutter seat (1), characterized in that: A chip removal groove (9) is provided on the surface of the milling cutter seat (1), and a blade groove (10) is provided on one side of the chip removal groove (9); A threaded block (8) is fixed at the bottom end of the milling cutter seat (1), a tool rod (2) is arranged on the outside of the threaded block (8), and the tool rod (2) and the threaded block (8) are threadedly connected; An adjusting rod (3) is arranged on the outer side of the tool rod (2), and fastening screws (6) are threadedly connected to both sides of the tool rod (2), and the fastening screws (6) penetrate the inner wall of the tool rod (2) and are threadedly connected to the threaded block (8), the surface of the milling cutter seat (1) is coated with polyurethane wear-resistant paint, and the surfaces of the tool rod (2) and the adjusting rod (3) are coated with alkyd resin paint.

2. A high-hardness die alloy milling cutter with edge protection function according to claim 1, characterized in that: An adjusting block (11) is arranged inside the blade slot (10), a double-sided milling blade (12) is arranged on one side of the adjusting block (11), and a fixing screw (13) is threadedly connected to one side of the double-sided milling blade (12).

3. A high-hardness die alloy milling cutter with edge protection function according to claim 2, characterized in that: The fixing screw (13) passes through the interior of the adjustment block (11) and is threadedly connected to the milling cutter seat (1); a sliding groove (15) is provided on the surface of the cutter rod (2); and a sliding strip (16) is fixed inside the adjustment rod (3).

4. The high-hardness die alloy milling cutter with edge protection function according to claim 3, characterized in that: A snap-fit ​​structure is formed between the slide groove (15) and the slide bar (16), and a thread groove (14) is provided below the slide groove (15).

5. The high-hardness die alloy milling cutter with edge protection function according to claim 4, characterized in that: A protective ring (4) is provided on the outer side of the thread groove (14), and a protective cover (5) is threadedly connected to one side of the protective ring (4).

6. The high-hardness die alloy milling cutter with edge protection function according to claim 3, characterized in that: A clamping groove is provided inside the knife rod (2), a return spring (17) is fixed inside the clamping groove, a clamping block (7) is fixed on one side of the return spring (17), and a clamping groove is provided on the surface of the adjustment rod (3).

7. A high-hardness die alloy milling cutter with edge protection function according to claim 6, characterized in that: A snap-fit ​​structure is formed between the snap-fit ​​block (7) and the snap-fit ​​groove; a buffer block (18) is provided below the slide bar (16); a telescopic rod (21) is fixed to one side of the buffer block (18); and a compression spring (22) is provided on the outside of the telescopic rod (21).

8. The high-hardness die alloy milling cutter with edge protection function according to claim 7, characterized in that: Slide blocks (20) are fixed on both sides of the buffer block (18), a slide bar (19) is arranged inside the slide block (20), and a sliding structure is formed between the slide block (20) and the slide bar (19).

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