End face milling cutter with milling cutter edge convenient to replace

Abstract

The utility model relates to the field of end face milling cutters, and discloses an end face milling cutter convenient to replace a milling blade, which comprises a cutter handle, the upper end of the outer wall of the cutter handle is threaded, the cutter handle is connected with an extension rod through a telescopic component so as to extend the cutter handle for deep processing, and the top end of the extension rod is fixedly connected with a cutter body. A plurality of containing grooves are formed in the outer side of the cutter body, the cutter body is connected with cutter teeth through a mounting assembly so as to be used for dismounting and mounting the cutter teeth, the cutter teeth are located in the containing grooves, fixing blocks are fixedly connected to the bottom ends of the cutter teeth, and fixing grooves are formed in the inner walls of the bottom ends of the fixing blocks. A plurality of stand columns are fixedly connected to the bottom end of the inner wall of the containing groove. According to the end face milling cutter, the rotating disc rotates to drive the extension rod to move on the cutter handle to increase the length of the cutter handle, so that the end face milling cutter can carry out deep processing, the damaged cutter teeth can be independently replaced when the cutter teeth are damaged, and unnecessary economic losses are reduced.

Description

Technical Field

[0001] The utility model relates to the field of end milling cutters, in particular to an end milling cutter with an easy-to-replace milling cutter blade. Background Art

[0002] With the continuous development of industry, the requirements for the precision, surface quality and production efficiency of mechanical parts are becoming higher and higher. During the processing, it is necessary to be able to cut various materials efficiently to meet the needs of different industries. End milling cutters have become key tools in many processing scenarios because of their ability to quickly process flat surfaces, step surfaces and other features.

[0003] After searching, the publication number CN215392718U discloses a carbide face milling cutter, comprising a cutter seat, a cutter slot, a screw hole, a milling blade, a fixing hole, a fixing block, a first fastening screw, a first fixing plate, a first through hole, a second fixing plate, a second through hole, a connecting column, a second fastening screw, and a positioning hole. The cutter blade is made of carbide material and has a rectangular structure. A fixing block is connected and fixed to the outer side wall of the cutter blade to ensure the overall strength of the cutter blade and the firmness of the connection between the cutter blade and the cutter seat. A screw hole is provided in the cutter slot, and fixing holes are provided on the cutter blade and the fixing block, respectively. A first fastening screw is provided in the fixing hole, and the first fastening screw is screwed and locked with the screw hole, allowing staff to quickly replace the cutter blade if it is damaged. A second fixing plate is horizontally welded and fixed to the top of the connecting column. The first fixing plate and the second fixing plate are respectively provided with a first through hole and a second through hole.

[0004] Based on the above patent, the milling blades on the existing end mills mentioned in the background technology mostly adopt an integrated connection method with the end mill main structure, that is, they cannot be disassembled. After the milling blade is damaged, the staff cannot replace the milling blade separately, thereby causing unnecessary economic losses. In response to this technical problem, this application proposes an end mill that is easy to replace the milling blade. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an end milling cutter that is easy to replace the milling cutter blade. The turntable rotates to drive the extension rod to move on the shank to increase the length of the shank, so that the end milling cutter can perform deep processing, and when the teeth are damaged, the damaged teeth can be replaced separately, reducing unnecessary economic losses.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an end milling cutter for easy replacement of milling cutter blades, comprising a shank, the upper end of the outer wall of the shank being threaded, the shank being connected to an extension rod via a telescopic assembly for extending the shank for deep processing, a cutter body being fixedly connected to the top of the extension rod, a plurality of placement grooves being provided on the outer side of the cutter body, the cutter body being connected to the cutter teeth via an installation assembly for disassembly and installation of the cutter teeth, the cutter teeth being all located in the placement grooves, the bottom ends of the cutter teeth being fixedly connected to a fixing block, a fixing groove being provided on the inner wall of the bottom end of the fixing block, a plurality of columns being fixedly connected to the bottom end of the inner wall of the placement groove, and the fixing grooves being in conformity with the shape of the columns.

[0007] Furthermore, the telescopic assembly includes a turntable threadedly connected to the upper end of the outer wall of the handle, the turntable is hexagonal as a whole, and the bottom end of the extension rod is fixedly connected to the top end of the turntable.

[0008] Furthermore, a slide groove is provided at the front and rear ends of the knife handle, and a slide rod is fixedly connected to the front and rear ends of the inner wall of the extension rod, and the slide rod is slidably connected to the inner wall of the slide groove.

[0009] Furthermore, the inner walls at the front and rear ends of the turntable are threadedly connected with screw rods, and the opposite ends of the screw rods are fixedly connected with knobs for locking the turntable from rotating.

[0010] Furthermore, the mounting assembly includes a first bolt threadedly connected to the inner walls of the plurality of teeth, the outer walls of the first bolt are threadedly connected to the inner wall of the cutter body, and the plurality of fixing blocks and the inner walls of the plurality of columns are threadedly connected with a second bolt.

[0011] Furthermore, a clamping block is fixedly connected to the inner side of each of the blade teeth, and a clamping slot is provided on the inner side of each of the placement slots, and the clamping block matches the shape of the clamping slot.

[0012] Furthermore, a plurality of mounting grooves are provided at the bottom end of the outer wall of the tool handle for mounting the tool handle on a turning and milling device.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the extension rod is moved on the tool holder by rotating the turntable to increase the length of the tool holder, so that the end milling cutter can penetrate deep into the workpiece for deep processing. For some workpieces with deeper processing parts, the tool holder of traditional length may not be able to reach them. This design solves this problem well and greatly improves the tool's adaptability to different workpiece structures.

[0015] 2. In the present invention, the cutter teeth are mounted on the cutter body by means of the first bolt and the second bolt, so that when the cutter teeth are damaged, there is no need to replace the entire cutter body, and only the damaged cutter teeth need to be replaced, which greatly reduces the cost of using the cutter and reduces unnecessary economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of an end milling cutter with easy replacement of milling cutter blades proposed in the present invention;

[0017] Figure 2 This is an exploded view of the teeth and cutter body of a face milling cutter that is easy to replace the milling cutter blade, proposed by the present invention;

[0018] Figure 3 The utility model provides a cross-sectional view of an extension rod of an end milling cutter for facilitating the replacement of the milling cutter blade.

[0019] Legend:

[0020] 1. Tool handle; 2. Mounting slot; 3. Slide slot; 4. Turntable; 5. Knob; 6. Extension rod; 7. Slide rod; 8. Tool body; 9. Tool teeth; 10. Fixing block; 11. Column; 12. First bolt; 13. Second bolt; 14. Screw; 15. Block; 16. Slot. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 3 The utility model provides an embodiment of an end milling cutter which is convenient for replacing the milling cutter blade, comprising a tool holder 1, the upper end of the outer wall of the tool holder 1 is threaded, and is threadedly connected to a turntable 4 on the upper end of the outer wall of the tool holder 1. The turntable 4 is hexagonal as a whole, and the bottom end of the extension rod 6 is fixedly connected to the top of the turntable 4. A slide groove 3 is provided at the front and rear ends of the tool holder 1, and the front and rear ends of the inner wall of the extension rod 6 are fixedly connected to a slide rod 7, which is slidably connected to the inner wall of the slide groove 3. The inner walls of the front and rear ends of the turntable 4 are threadedly connected with a screw rod 14, and the opposite end of the screw rod 14 is fixedly connected to a knob 5 for locking the rotation of the turntable 4, so as to extend the tool holder 1 for deep processing. A plurality of mounting grooves 2 are provided at the bottom end of the outer wall of the tool holder 1 for mounting the tool holder 1 on a turning and milling device.

[0023] Specifically, when using the end milling cutter, first connect the mounting groove 2 of the tool handle 1 to the tool mounting position on the milling machine device, and then, according to the workpiece to be turned and milled, first rotate and loosen the screw rods 14 on both sides of the turntable 4, and then rotate the turntable 4 to make the turntable 4 drive the extension rod 6 to move upward, and the slide rod 7 on the inside of the extension rod 6 will slide in the slide groove 3 opened on the outside of the tool handle 1 to ensure that the extension rod 6 is stably extended. When the extension rod 6 is extended to a suitable length, rotate the knobs 5 on both sides of the turntable 4 to clamp the screw rod 14 on the outer wall of the tool handle 1 to prevent the turntable 4 from rotating. Then, the end milling cutter can be used to process the surface of the workpiece.

[0024] Reference Figure 1 and Figure 2 The top of the extension rod 6 is fixedly connected to the cutter body 8, and a plurality of placement grooves are provided on the outside of the cutter body 8, which are threadedly connected to the first bolt 12 on the inner wall of the plurality of cutter teeth 9. The outer walls of the first bolt 12 are threadedly connected to the inner wall of the cutter body 8, and a plurality of fixing blocks 10 and the inner walls of the plurality of columns 11 are threadedly connected with the second bolt 13. The inner sides of the cutter teeth 9 are fixedly connected with the clamping blocks 15, and the inner sides of the placement grooves are provided with clamping grooves 16. The shapes of the clamping blocks 15 and the clamping grooves 16 match for the disassembly and installation of the cutter teeth 9. The cutter teeth 9 are all located in the placement grooves, and the bottom ends of the cutter teeth 9 are fixedly connected with the fixing blocks 10. The inner wall of the bottom end of the fixing block 10 is provided with a fixing groove, and the bottom end of the inner wall of the placement groove is fixedly connected with a plurality of columns 11, and the fixing grooves match the shapes of the columns 11.

[0025] Specifically, when the cutter tooth 9 of the end milling cutter is damaged, the first bolt 12 and the second bolt 13 are unscrewed with a hexagonal screwdriver. The first bolt 12 and the second bolt 13 are both hexagonal bolts. Then the damaged cutter tooth 9 is taken out upward, and then the new cutter tooth 9 is replaced. The clamping block 15 is aligned with the clamping slot 16 and inserted. The column 11 is inserted into the fixing groove inside the fixing block 10. Then the second bolt 13 is installed on the fixing block 10, and the first bolt 12 is installed on the cutter tooth 9. Finally, the need to replace the entire tool is avoided, reducing unnecessary economic losses.

[0026] Working principle: This utility model needs to be used in conjunction with a milling machine device. When using the end milling cutter, first connect the mounting groove 2 at the shank 1 to the tool mounting position on the milling machine device, and then according to the workpiece to be turned and milled, loosen the screw rods 14 on both sides of the turntable 4, and then rotate the turntable 4 to make the turntable 4 drive the extension rod 6 to move upward. When the extension rod 6 extends to the appropriate length, turn the knobs 5 on both sides to clamp the screw rod 14 on the outer wall of the shank 1 to lock the turntable 4. Then the end milling cutter can be used to process the surface of the workpiece. When the teeth 9 of the end milling cutter are damaged, use a hexagonal screwdriver to unscrew the first bolt 12 and the second bolt 13, then take out the damaged teeth 9 upward, and then replace the new teeth 9. Screw on the second bolt 13 of the first bolt 12 to complete the replacement, avoiding the need to replace the entire tool and reducing unnecessary economic losses.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A face milling cutter that is easy to replace the milling cutter blade, characterized in that: The utility model comprises a knife handle (1), wherein the upper end of the outer wall of the knife handle (1) is threaded, and the knife handle (1) is connected to an extension rod (6) through a telescopic component so as to extend the knife handle (1) for deep processing, and the top end of the extension rod (6) is fixedly connected to a knife body (8), and a plurality of placement grooves are provided on the outer side of the knife body (8), and the knife body (8) is connected to a knife tooth (9) through a mounting component so as to be used for disassembling and installing the knife tooth (9), and the knife teeth (9) are all located in the placement grooves, and the bottom ends of the knife teeth (9) are fixedly connected to a fixed block (10), and the inner wall of the bottom end of the fixed block (10) is provided with a fixed groove, and the bottom end of the inner wall of the placement groove is fixedly connected to a plurality of columns (11), and the fixed groove and the column (11) are matched in shape.

2. The face milling cutter with easy-to-replace milling cutter blade according to claim 1, characterized in that: The telescopic assembly comprises a turntable (4) threadedly connected to the upper end of the outer wall of the handle (1); the turntable (4) is hexagonal in shape as a whole; the bottom end of the extension rod (6) is fixedly connected to the top end of the turntable (4).

3. The face milling cutter with easy-to-replace milling cutter blade according to claim 2, characterized in that: The front and rear ends of the knife handle (1) are provided with a sliding groove (3), and the front and rear ends of the inner wall of the extension rod (6) are fixedly connected with a sliding rod (7), and the sliding rod (7) is slidably connected to the inner wall of the sliding groove (3).

4. The face milling cutter with easy-to-replace milling cutter blade according to claim 2, characterized in that: The inner walls of the front and rear ends of the turntable (4) are threadedly connected with screw rods (14), and the opposite ends of the screw rods (14) are fixedly connected with knobs (5) for locking the turntable (4) from rotating.

5. The face milling cutter with easy-to-replace milling cutter blade according to claim 1, characterized in that: The mounting assembly includes a first bolt (12) threadedly connected to the inner wall of the plurality of blade teeth (9), the outer wall of the first bolt (12) is threadedly connected to the inner wall of the blade body (8), and the plurality of fixing blocks (10) and the inner wall of the plurality of columns (11) are threadedly connected with a second bolt (13).

6. The face milling cutter with easy-to-replace milling cutter blade according to claim 5, characterized in that: The inner sides of the blade teeth (9) are all fixedly connected with clamping blocks (15), and the inner sides of the placement grooves are all provided with clamping grooves (16), and the clamping blocks (15) and the clamping grooves (16) are matched in shape.

7. The face milling cutter with easy-to-replace milling cutter blade according to claim 1, characterized in that: The bottom end of the outer wall of the tool handle (1) is provided with a plurality of mounting grooves (2) for mounting the tool handle (1) on a turning and milling device.

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