Milling cutter capable of prolonging service life

Abstract

The utility model provides a milling cutter capable of prolonging the service life and belongs to the technical field of milling cutters. Comprising a milling cutter body, a cutting edge is arranged at the front end of the milling cutter body, a high-strength nano-alloy coating is sprayed on the outer wall of the milling cutter body and the cutting edge, a spiral chip removal groove matched with the cutting edge is formed in the milling cutter body, a cutter handle is inserted into the tail end of the milling cutter body, and a groove matched with the milling cutter body is formed in the front side wall of the cutter handle; the locking assembly comprises a hollow box, a sliding plate is slidably connected into the hollow box, a plurality of locking rods inserted into the grooves are arranged at the bottom of the sliding plate at equal intervals, and a screw in threaded connection with the top of the hollow box is rotationally connected to the top of the sliding plate. Through the combined action of the locking assembly, the limiting groove, the limiting protrusion and the like, the milling cutter body and the cutter handle can be detachably and fixedly connected together, when the cutter edge is damaged, a new milling cutter body and a new cutter edge can be conveniently replaced, the cutter handle does not need to be replaced, the comprehensive cost is greatly reduced, and the service life of the milling cutter is greatly prolonged.

Description

Technical Field

[0001] The utility model provides a milling cutter with a longer service life, belonging to the technical field of milling cutters. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling processing. It can be divided into two-edge milling cutters, three-edge milling cutters and four-edge milling cutters according to the number of teeth. After long-term use, the surface of the teeth of the milling cutter will gradually be worn flat, causing it to lose its ability to work normally. Among them, high-hardness alloy milling cutters can extend their service life due to their own material properties, and can also mill harder materials.

[0003] The milling cutters currently on the market can basically meet the use needs, but because the blade and the handle are often formed in one piece, the blade at the front end of the blade is damaged after being used for a period of time, and the entire milling cutter often needs to be discarded. Since the handle can be reused, the overall cost is relatively high, and the service life of the entire milling cutter needs to be improved. Based on this, the utility model provides a milling cutter with an improved service life. Utility Model Content

[0004] The technical problem solved by the utility model is that after the milling cutter is damaged, the whole milling cutter often needs to be discarded, and since the tool handle can be reused, the comprehensive cost is relatively high, and the service life of the whole milling cutter needs to be improved.

[0005] In order to solve the technical problem, the utility model provides a technical solution: a milling cutter with improved service life, comprising a milling cutter body, a cutting edge is provided at the front end of the milling cutter body, the milling cutter body and the cutting edge are made of alloy tungsten steel material, the outer walls of the milling cutter body and the cutting edge are sprayed with a high-strength nano-alloy coating, the milling cutter body is provided with a spiral chip removal groove matching the cutting edge, a shank is inserted at the rear end of the milling cutter body, a groove matching the milling cutter body is provided on the front side wall of the shank, a locking assembly is symmetrically provided at the front end of the shank body of the shank and is placed on the outside of the groove for locking the milling cutter body, the locking assembly comprises a hollow box, a slide plate is slidably connected to the hollow box, a plurality of locking rods inserted into the groove are equidistantly provided at the bottom of the slide plate, and a screw threadedly connected to the top of the hollow box is rotatably connected to the top of the slide plate.

[0006] Furthermore, the hollow box is fixedly connected to the front end of the handle body of the tool handle, the side wall of the rear end of the milling cutter body is provided with a plurality of locking holes matching the locking rod, and the top end of the screw rod is provided with a handle placed above the hollow box.

[0007] Furthermore, the cross-sections of the locking rod and the locking hole are both regular hexagonal structures.

[0008] Furthermore, the two inner side walls of the hollow box are symmetrically provided with limit rails matching the side walls of the slide plate.

[0009] Furthermore, the inner wall inclination angle of the spiral chip removal groove is 30°-60°.

[0010] Furthermore, a plurality of limiting grooves are arranged on the circumference of the rear end of the milling cutter body, and a plurality of limiting protrusions matching the limiting grooves are arranged on the circumference of the inner side wall of the groove.

[0011] Beneficial effects of the utility model:

[0012] By selecting alloy tungsten steel materials to make the milling cutter body and blade, the wear resistance is enhanced. By spraying high-strength nano alloy coating on the outer wall of the milling cutter body and blade, it is sharp and wear-resistant. By selecting a spiral chip groove with a suitable inclination angle, the waste chips generated when the blade is working can be quickly discharged from the spiral chip groove smoothly to avoid the waste chips from not being able to be discharged and damaging the blade, which can greatly improve the service life of the milling cutter.

[0013] When the milling cutter body needs to be replaced when it is damaged, the limit groove is matched with the limit protrusion, and then the rear end of the milling cutter body is limited and inserted into the limit groove, so that the rear end of the milling cutter body is fully inserted into the groove, and the locking rod is connected with the locking hole. By holding the handle and rotating it, the screw rod is driven to rotate and move downward. Under the limit of the limit rail, the slide plate is driven to move downward, and the locking rod is driven to move downward, so that the locking rod is inserted into the locking hole, and the milling cutter body and the shank can be detachably fixed together. When the blade is damaged, the new milling cutter body and blade can be conveniently replaced without replacing the shank, which greatly reduces the overall cost and greatly improves the service life of the milling cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a milling cutter that can increase the service life of the utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of a milling cutter that can increase the service life of the utility model. Figure 2 ;

[0016] Figure 3 This is a partial enlarged view of a milling cutter capable of increasing the service life of the utility model;

[0017] Figure 4 The utility model is a partial plane cross-sectional view of a milling cutter capable of prolonging its service life.

[0018] 1. Milling cutter body; 2. Blade; 3. Spiral chip groove; 4. Tool handle; 5. Groove; 6. Hollow box; 7. Slide plate; 8. Locking rod; 9. Screw; 10. Locking hole; 11. Handle; 12. Limit rail; 13. Limit groove; 14. Limit protrusion. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] According to the attached Figure 1 , 2 As shown in , 4: The utility model provides a milling cutter with improved service life: it includes a milling cutter body 1, a cutting edge 2 is provided at the front end of the milling cutter body 1, the milling cutter body 1 and the cutting edge 2 are made of alloy tungsten steel material, the outer walls of the milling cutter body 1 and the cutting edge 2 are sprayed with a high-strength nano alloy coating, the milling cutter body 1 is provided with a spiral chip withdrawal groove 3 matched with the cutting edge 2, a handle 4 is inserted at the rear end of the milling cutter body 1, and a groove 5 matching the milling cutter body 1 is provided on the front side wall of the handle 4, and a locking component symmetrically arranged on the outside of the groove 5 for locking the milling cutter body 1 is provided at the front end of the handle body of the handle 4, and the locking component includes a hollow box 6, a slide plate 7 is slidably connected in the hollow box 6, and a plurality of locking rods 8 inserted into the groove 5 are equidistantly provided at the bottom of the slide plate 7, and a screw rod 9 threadedly connected to the top of the hollow box 6 is rotatably connected to the top of the slide plate 7, and the hollow box 6 is fixedly connected to the handle 4, a plurality of locking holes 10 matching the locking rod 8 are arranged on the side wall of the rear end of the milling cutter body 1, and a grip 11 placed above the hollow box 6 is arranged on the top of the screw rod 9. The milling cutter body 1 and the blade 2 are made of alloy tungsten steel material to enhance wear resistance, and a high-strength nano-alloy coating is sprayed on the outer walls of the milling cutter body 1 and the blade 2, which are sharp and wear-resistant, thereby greatly improving the service life of the milling cutter. When the rear end of the milling cutter body 1 is inserted into the groove 5, the locking rod 8 is connected with the locking hole 10 at this time. By rotating the grip 11, the locking rod 8 is inserted into the locking hole 10, so that the milling cutter body 1 and the handle 4 can be detachably fixed together, and when the blade 2 is damaged, the new milling cutter body 1 and the blade can be conveniently replaced without replacing the handle 4, thereby greatly reducing the overall cost and greatly improving the service life of the milling cutter.

[0021] According to the attached Figure 3 As shown, the cross-sections of the locking rod 8 and the locking hole 10 are both regular hexagonal structures, which play a role in enhancing the locking strength and preventing the locking rod 8 from causing slight displacement in the locking hole 10.

[0022] According to the attached Figure 4 As shown: the two inner side walls of the hollow box 6 are symmetrically provided with limiting rails 12 that match the side walls of the slide plate 7, which play a role in limiting the position of the slide plate 7.

[0023] According to the attached Figure 1 , 2 As shown: the inner wall inclination angle of the spiral chip groove 3 is 30°-60°. By selecting the spiral chip groove 3 with a suitable inclination angle, the waste chips generated when the blade is working can be quickly discharged from the spiral chip groove 3 smoothly, avoiding the waste chips from being unable to be discharged and damaging the blade, thereby effectively improving the service life.

[0024] According to the attached Figure 3As shown: a plurality of limiting grooves 13 are provided on the circumference of the rear end of the milling cutter body 1, and a plurality of limiting protrusions 14 matching the limiting grooves 13 are provided on the circumference of the inner wall of the groove 5. By matching the limiting grooves 13 with the limiting protrusions 14, the rear end of the milling cutter body 1 is limitedly inserted into the limiting grooves 13, so that after the rear end of the milling cutter body 1 is fully inserted into the groove 5, the locking rod 8 is connected with the locking hole 10.

[0025] Principle of the utility model

[0026] When in use, the milling cutter body 1 and the blade 2 are made of alloy tungsten steel material to enhance wear resistance, and the high-strength nano alloy coating is sprayed on the outer wall of the milling cutter body 1 and the blade 2 to make them sharp and wear-resistant. The spiral chip groove 3 with a suitable inclination angle is selected to quickly and smoothly discharge the waste chips generated when the blade is working from the spiral chip groove 3 to avoid the waste chips from being unable to be discharged and damaging the blade, thereby greatly improving the service life of the milling cutter. When the milling cutter body 1 is damaged and needs to be replaced, the limiting groove 13 is matched with the limiting protrusion 14, and then the tail end of the milling cutter body 1 is limitedly inserted into the limiting groove 13. After the rear end of the milling cutter body 1 is completely inserted into the groove 5, the locking rod 8 is connected with the locking hole 10. By holding the handle 11 and rotating it, the screw rod 9 is driven to rotate and move downward. Under the limit of the limit rail 12, the slide plate 7 is driven to move downward, and the locking rod 8 is driven to move downward, so that the locking rod 8 is inserted into the locking hole 10. The milling cutter body 1 and the shank 4 can be detachably fixed together. When the blade 2 is damaged, the new milling cutter body 1 and the blade can be conveniently replaced without replacing the shank 4, which greatly reduces the overall cost and greatly improves the service life of the milling cutter.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A milling cutter with a longer service life, comprising a milling cutter body (1), wherein a cutting edge (2) is provided at the front end of the milling cutter body (1), and characterized in that: The milling cutter body (1) and the blade (2) are both made of alloy tungsten steel material. The outer walls of the milling cutter body (1) and the blade (2) are sprayed with a high-strength nano alloy coating. The milling cutter body (1) is provided with a spiral chip removal groove (3) that matches the blade (2). A handle (4) is inserted into the rear end of the milling cutter body (1). The front side wall of the handle (4) is provided with a groove (5) that matches the milling cutter body (1). The front end of the handle body of the handle (4) is symmetrically provided with a locking component that is placed outside the groove (5) and is used to lock the milling cutter body (1). The locking component comprises a hollow box (6). A slide plate (7) is slidably connected inside the hollow box (6). A plurality of locking rods (8) inserted into the groove (5) are equidistantly provided at the bottom of the slide plate (7). A screw rod (9) that is threadedly connected to the top of the hollow box (6) is rotatably connected to the top of the slide plate (7).

2. A milling cutter with a longer service life according to claim 1, characterized in that: The hollow box (6) is fixedly connected to the front end of the handle body of the tool handle (4); the side wall of the rear end of the milling cutter body (1) is provided with a plurality of locking holes (10) matching the locking rod (8); and the top end of the screw rod (9) is provided with a handle (11) placed above the hollow box (6).

3. A milling cutter with a longer service life according to claim 2, characterized in that: The cross sections of the locking rod (8) and the locking hole (10) are both regular hexagonal structures.

4. A milling cutter with a longer service life according to claim 1, characterized in that: The two inner side walls of the hollow box (6) are symmetrically provided with limiting rails (12) matching the side walls of the slide plate (7).

5. A milling cutter with a longer service life according to claim 1, characterized in that: The inner wall inclination angle of the spiral chip removal groove (3) is 30°-60°.

6. A milling cutter with a longer service life according to claim 1, characterized in that: The rear end circumference of the milling cutter body (1) is provided with a plurality of limiting grooves (13), and the inner side wall circumference of the groove (5) is provided with a plurality of limiting protrusions (14) matching the limiting grooves (13).

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