Spiral forming drilling and milling cutter for cutting aluminum

Abstract

The utility model discloses a spiral forming drilling and milling cutter for cutting aluminum, and particularly relates to the field of milling cutters, the spiral forming drilling and milling cutter comprises a milling cutter head, the outer wall of the milling cutter head is movably connected with a replacement mechanism, the replacement mechanism comprises a cutter body, the side face of the cutter body is fixedly connected with a side cutting edge, and the upper end of the cutter body is fixedly connected with an upper cutting edge. The outer wall of the cutter body is fixedly connected with a center blade, a fixing hole is formed in the upper face of the cutter body, a bolt is connected into the fixing hole in a penetrating mode, and the back face of the cutter body is fixedly connected with an upper fixing block. By means of the replacement mechanism, cost is saved conveniently, when the side cutting edge, the upper cutting edge and the center cutting edge are abraded or broken, the bolt can be detached to replace the cutter body, a new cutter body is arranged on the milling cutter head, the upper fixing block and the lower fixing block can clamp the clamping block in the middle in the installation process, and therefore the cutter body can be positioned, and the machining efficiency is improved. And in addition, the cutter can be more stable in use, and the cost can be effectively saved by replacing the cutter body.

Description

Technical Field

[0001] The utility model relates to the field of milling cutters, and more specifically, to a spiral-shaped drilling and milling cutter for cutting aluminum. Background Art

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

[0003] After searching, the existing patent (publication number: CN218855699U) discloses a through-slot drilling and milling cutter, including a shank and a cutter head integrally arranged at the front of the shank, the front of the cutter head having a drilling cutter segment with an outer diameter of D1, the rear of the drilling cutter segment having a milling cutter segment with an outer diameter of D2, D2>D1, the front end of the drilling cutter segment is provided with a drill tip, the side of the drill tip is flush with its outer surface and is inlaid with a first PCD blade; the surface of the cutter head is provided with a spiral blade connecting the drilling cutter segment and the milling cutter segment, a chip removal groove is formed between the spiral blades, and a second PCD blade is inlaid on the spiral blade corresponding to the front end of the milling cutter segment; it is particularly suitable for processing through-slots with high precision requirements, and the drilling and milling processing has a long service life and high drilling and milling processing precision. At the same time, this drilling and milling cutter can also be used to perform drilling processing operations using only the drilling cutter segment at the front of the cutter head, and can also be used as a drill bit alone. The inventor found the following problems in the prior art during the implementation of the utility model:

[0004] The existing drill and milling cutter is a cutter head for turning and drilling objects. When grinding aluminum products, the existing drill and milling cutter head will wear out or break. When the cutter head is worn out or damaged, the whole milling cutter will be directly replaced, which consumes a lot of energy and is wasteful in long-term use. Therefore, when using a spiral forming drill and milling cutter for cutting aluminum, a replacement mechanism is required to facilitate the replacement of the cutter head.

[0005] Therefore, in view of the above problems, a spiral-shaped drilling and milling cutter for cutting aluminum is proposed. Utility Model Content

[0006] In order to overcome the above defects of the prior art, the utility model provides a spiral-shaped drill and milling cutter for cutting aluminum to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: a spiral forming drill and milling cutter for cutting aluminum, comprising a milling cutter head, the outer wall of the milling cutter head is movably connected with a replacement mechanism, the replacement mechanism comprises a blade body, the side of the blade body is fixedly connected with a side blade, the upper end of the blade body is fixedly connected with an upper blade, the outer wall of the blade body is fixedly connected with a center blade, and a fixing hole is opened on the upper side of the blade body;

[0008] A bolt is passed through the fixing hole, an upper fixing block is fixedly connected to the back of the blade body, a lower fixing block is fixedly connected to the back of the blade body, and the blade body and the outer wall of the milling cutter head are movably connected.

[0009] Preferably, a chip groove is provided on the top of the milling cutter head, and the replacement mechanism is installed on the inner wall of the chip groove.

[0010] Preferably, a tool handle is fixedly connected to the bottom end of the milling cutter head, a slot is provided on the outer wall of the tool handle, and a positioning rod is fixedly connected to the bottom end of the tool handle.

[0011] Preferably, a thread groove is formed on the inner wall of the chip removal groove, and the thread groove is threadedly connected to the bolt.

[0012] Preferably, the thread groove and the fixing hole have the same outer diameter, and the fixing hole and the thread groove are located at the same position.

[0013] Preferably, a clamping block is fixedly connected to the inner wall of the chip removal groove, and the clamping block is arranged between the upper fixed block and the lower fixed block.

[0014] Preferably, the upper surface of the central blade is at the same height as the surface of the upper blade, and the central blade and the blade body form an integrated structure.

[0015] Preferably, the bottom end of the center blade is movably fitted to the upper end of the milling cutter head, and the center blade extends to the center axis of the milling cutter head.

[0016] Technical effects and advantages of the utility model:

[0017] 1. Compared with the prior art, this spiral forming drill and milling cutter for cutting aluminum is convenient for saving costs through the replacement mechanism. When the side blade, the upper blade and the center blade are worn or broken, the bolts can be removed to replace the blade body. The new blade body is replaced on the milling cutter head. During installation, the upper fixed block and the lower fixed block will clamp the clamping block in the middle, so that the blade body can be positioned and can be more stable when in use. By replacing the blade body, costs can be effectively saved, resources can be effectively saved, and it is more environmentally friendly.

[0018] 2. Compared with the prior art, the spiral-formed drill and milling cutter for cutting aluminum can be better fixed through the shank, the slot and the positioning rod. When in use, the shank can be positioned by inserting the positioning rod into the drill bit, and then the clamping claws will be accurately clamped in the slot to fix it, avoiding the traditional flat surface from slipping easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the expanded structure of the replacement mechanism of the utility model.

[0021] Figure 3 It is a schematic diagram of the connection structure between the blade body and the upper fixing block of the utility model.

[0022] Figure 4 This is a schematic diagram of the connection structure between the milling cutter head and the clamping block of the utility model.

[0023] The accompanying drawings are marked as follows: 1, milling cutter head; 2, chip groove; 3, replacement mechanism; 4, tool handle; 5, slot; 6, positioning rod; 7, threaded groove; 8, clamping block; 301, blade; 302, side blade; 303, fixing hole; 304, bolt; 305, upper blade; 306, center blade; 307, upper fixing block; 308, lower fixing block. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1

[0026] As attached Figures 1 to 3 A spiral forming drill and milling cutter for cutting aluminum shown in the figure comprises a milling cutter head 1, the outer wall of the milling cutter head 1 is movably connected with a replacement mechanism 3, the replacement mechanism 3 comprises a blade body 301, the side of the blade body 301 is fixedly connected with a side blade 302, the upper end of the blade body 301 is fixedly connected with an upper blade 305, the outer wall of the blade body 301 is fixedly connected with a center blade 306, and a fixing hole 303 is opened on the upper side of the blade body 301;

[0027] A bolt 304 is passed through the fixing hole 303 , an upper fixing block 307 is fixedly connected to the back of the blade body 301 , a lower fixing block 308 is fixedly connected to the back of the blade body 301 , and the blade body 301 and the outer wall of the milling cutter head 1 are movably connected.

[0028] Among them: when the side blade 302, the upper blade 305 and the center blade 306 are worn out or broken, the bolt 304 can be removed to replace the blade body 301, and the new blade body 301 is replaced on the milling cutter head 1. During installation, the upper fixing block 307 and the lower fixing block 308 position the blade body 301, and it can be more stable when in use. By replacing the blade body 301, costs can be effectively saved, resources can be effectively saved, and it is more environmentally friendly.

[0029] Embodiment 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0031] As a preferred embodiment, a chip groove 2 is provided on the top of the milling cutter head 1 , and the replacement mechanism 3 is installed on the inner wall of the chip groove 2 ; further, the chips cut by the replacement mechanism 3 can be discharged through the chip groove 2 .

[0032] As a preferred embodiment, the bottom end of the milling cutter head 1 is fixedly connected to a shank 4, a slot 5 is provided on the outer wall of the shank 4, and a positioning rod 6 is fixedly connected to the bottom end of the shank 4; further, the positioning rod 6 can position the shank 4 during installation, and then the clamping claw will be accurately clamped in the slot 5 for fixation, thereby avoiding the phenomenon of slipping that is easy to occur on a traditional plane.

[0033] As a preferred embodiment, a thread groove 7 is formed on the inner wall of the chip groove 2 , and the thread groove 7 is threadedly connected to the bolt 304 ; further, the bolt 304 can be fixed in the thread groove 7 .

[0034] As a preferred embodiment, the outer diameters of the thread groove 7 and the fixing hole 303 are the same, and the fixing hole 303 and the thread groove 7 are located at the same position; further, the bolt 304 passes through the fixing hole 303 to fix the blade 301 .

[0035] As a preferred embodiment, the inner wall of the chip groove 2 is fixedly connected with a clamping block 8, and the clamping block 8 is arranged between the upper fixed block 307 and the lower fixed block 308; further, the upper fixed block 307 and the lower fixed block 308 clamp the clamping block 8 in the middle to position the blade 301.

[0036] As a preferred embodiment, the upper surface of the center blade 306 is at the same height as the surface of the upper blade 305, and the center blade 306 and the blade body 301 form an integrated structure; further, it can be stronger and more durable.

[0037] As a preferred embodiment, the bottom end of the center blade 306 is movably fitted to the upper end of the milling cutter head 1, and the center blade 306 extends to the center axis position of the milling cutter head 1; further, the bottom can be turned.

[0038] The working process of the utility model is as follows: first, insert the positioning rod 6 into the drill bit to position the tool handle 4, and then when fixing, the clamping claw will accurately clamp in the slot 5 on the tool handle 4 for fixing, and then the milling cutter head 1 can be driven to rotate to turn the aluminum products. During processing, the debris will be discharged through the chip groove 2, and when the side blade 302, the upper blade 305 and the center blade 306 are worn out or broken, the bolt 304 can be removed and then the blade 301 can be replaced. The new blade 301 is replaced on the milling cutter head 1. During installation, the upper fixing block 307 and the lower fixing block 308 will clamp the clamping block 8 in the middle, so that the blade 301 can be positioned, and then the fixing hole 303 will be aligned with the thread groove 7, and then the bolt 304 will pass through the fixing hole 303 and fix with the thread groove 7. After installation, the center blade 306 will extend to the top surface of the milling cutter head 1 to turn the top. The above is the working principle of this spiral forming drill milling cutter for cutting aluminum.

[0039] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A spirally formed drill and milling cutter for cutting aluminum, comprising a milling cutter head (1), characterized in that: The outer wall of the milling cutter head (1) is movably connected to a replacement mechanism (3), the replacement mechanism (3) comprising a blade body (301), a side blade (302) fixedly connected to the side of the blade body (301), an upper blade (305) fixedly connected to the upper end of the blade body (301), a center blade (306) fixedly connected to the outer wall of the blade body (301), and a fixing hole (303) is provided on the upper surface of the blade body (301); A bolt (304) is inserted through the fixing hole (303), an upper fixing block (307) is fixedly connected to the back of the blade body (301), a lower fixing block (308) is fixedly connected to the back of the blade body (301), and the blade body (301) and the outer wall of the milling cutter head (1) are movably connected.

2. A spiral-shaped drill and milling cutter for cutting aluminum according to claim 1, characterized in that: The milling cutter head (1) is provided with a chip removal groove (2) on its upper surface, and the replacement mechanism (3) is installed on the inner wall of the chip removal groove (2).

3. A spiral-shaped drill and milling cutter for cutting aluminum according to claim 2, characterized in that: The bottom end of the milling cutter head (1) is fixedly connected to a handle (4), an outer wall of the handle (4) is provided with a clamping groove (5), and the bottom end of the handle (4) is fixedly connected to a positioning rod (6).

4. A spiral-shaped drill and milling cutter for cutting aluminum according to claim 2, characterized in that: The inner wall of the chip removal groove (2) is provided with a thread groove (7), and the thread groove (7) is threadedly connected to the bolt (304).

5. A spiral-shaped drill and milling cutter for cutting aluminum according to claim 4, characterized in that: The outer diameters of the thread groove (7) and the fixing hole (303) are the same, and the fixing hole (303) and the thread groove (7) are located at the same position.

6. A spiral-shaped drill and milling cutter for cutting aluminum according to claim 4, characterized in that: A clamping block (8) is fixedly connected to the inner wall of the chip removal groove (2), and the clamping block (8) is arranged between an upper fixed block (307) and a lower fixed block (308).

7. The spiral-shaped drill and milling cutter for cutting aluminum according to claim 1, characterized in that: The upper surface of the central blade (306) is at the same height as the surface of the upper blade (305), and the central blade (306) and the blade body (301) form an integrated structure.

8. The spiral-shaped drill and milling cutter for cutting aluminum according to claim 7, characterized in that: The bottom end of the central blade (306) is movably connected to the upper end of the milling cutter head (1), and the central blade (306) extends to the central axis position of the milling cutter head (1).

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