Multi-cutting-edge staggered-tooth aluminum milling cutter device

Abstract

The utility model discloses a multi-cutting-edge staggered-tooth aluminum milling cutter device, and particularly relates to the technical field of milling cutters, the multi-cutting-edge staggered-tooth aluminum milling cutter device comprises a milling cutter shaft body, a layered cutting edge assembly and a limiting reinforcing column, a cutter head is arranged at the left end of the milling cutter shaft body, and the layered cutting edge assembly is arranged at the left end of the cutter head; according to the utility model, through the mutually independent structure of the plurality of groups of layered blade components, when a cutter is damaged due to accidental collision or long-time use of part of blades, only the damaged layered blade component needs to be taken out, and a new layered blade component is mounted at a corresponding position, and the whole milling cutter device does not need to be disassembled; the whole milling cutter does not need to be discarded due to damage of part of the cutting edges, so that cost is reduced, waste is avoided, cutting force is dispersed on the cutting edges at different axial stages through layered progressive machining of the multi-edge staggered-tooth layered cutting edge assembly, the abrasion speed of the cutting edges is reduced, allowance is removed through the cutting edge at the front end, and the service life of the milling cutter is prolonged. And the blade at the rear end is used for finely trimming, so that the cutting trace on the axial surface can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to milling cutter technical field more specifically, the utility model relates to a kind of multi-blade staggered tooth milling cutter device for aluminium. BACKGROUND

[0002] Milling cutter is one of the commonly used machining tools in machining, which is a rotating tool with one or more teeth for milling. During work, each tooth cuts off the excess of the workpiece intermittently, and it is mainly used for machining plane, step, groove, shaped surface and cutting off workpiece on milling machine;

[0003] After searching, the existing patent with publication number CN221087372U discloses a radial unequal multi-blade high-low tooth milling cutter. The milling cutter aims to solve the technical problems of the existing technology, i.e., one tool cannot complete both rough machining and finish machining, and the milling cutter is prone to springback during cutting of the base material. A radial unequal multi-blade high-low tooth milling cutter includes a cutter body, a cutter tail, a transition end, a cutter head, peripheral teeth, a main cutting edge, and a secondary cutting edge. The multi-blade high-low tooth milling cutter in this design adopts a radial unequal multi-blade design on the traditional multi-blade base structure, which can more effectively reduce radial force accumulation compared to the traditional single-blade structure, making the cutting force stronger and more effectively compensating for the low life of single-blade milling cutters in design. The high-low tooth structure can simultaneously perform rough and finish machining and more effectively process the base material that is prone to chip formation or red hardness and springback. The inventor found the following problems in the existing technology during the implementation of the utility model:

[0004] The existing milling cutter gradually decreases the cutting performance of the milling cutter as the cutting edge wears during the use of multi-blade tools. The worn cutting edge often leads to increased cutting force and easy tool damage. Part of the cutting edge is often damaged, requiring replacement of the entire tool. The multi-blade milling cutter has a complex structure and high-quality materials, which makes it expensive. Replacing the entire tool leads to waste of tool resources and increases the cost of enterprises. During actual cutting, the cutting force has not only a radial component but also an axial component. The high-low tooth structure mainly focuses on balancing the radial force, making it difficult to effectively disperse the axial force when encountering materials such as aluminum alloy during cutting, which leads to axial vibration and instability of the tool, affecting the cutting accuracy.

[0005] Therefore, a multi-blade staggered tooth milling cutter device for aluminum is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] To overcome the above-mentioned defects of the prior art, the utility model provides a multi-blade staggered tooth milling cutter device for aluminum to solve the problems raised in the background art.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a kind of multi-blade staggered tooth aluminium milling cutter device, including milling cutter shaft body, layered cutting edge subassembly and limiting reinforcing column, the right end of the milling cutter shaft body is provided with driving rod, the inner cavity of the driving rod is opened with driving cavity, the left end of the milling cutter shaft body is provided with tool bit, the layered cutting edge subassembly is arranged in the left end of the tool bit, the tool bit is provided with five groups, the center of the upper and lower ends of the tool bit is opened with limiting hole, the inner cavity of the limiting hole is installed with bolt;

[0008] The limiting reinforcing column is installed in the inner cavity of five layered cutting edge subassemblies, the left side of the limiting reinforcing column is provided with plug, and the upper and lower ends of the right side of the limiting reinforcing column are opened with threaded hole.

[0009] Preferably, the layered cutting edge subassembly includes a mounting blade body, the mounting blade body is sleeved on the outer surface of the limiting reinforcing column, the outer surface of the mounting blade body is provided with a tool, the tool is provided with a plurality of groups, the edge of the right side of the mounting blade body is provided with a limiting ring, the edge of the left side of the mounting blade body is opened with a limiting groove, and the inner cavity of the mounting blade body is opened with a mounting groove.

[0010] Preferably, the five layered cutting edge subassemblies abut each other, and the plurality of mounting blade bodies are circumferentially arranged on the outer surface of the mounting blade body in an equidistant spacing manner.

[0011] Preferably, the outer surface of the limiting ring abuts the inner surface of the limiting groove, the inner cavities of the five mounting grooves are in communication with each other, and one side of the inner cavity of one of the mounting grooves is provided with a space for accommodating the plug.

[0012] Preferably, the limiting reinforcing column is made of titanium alloy, the limiting reinforcing column, the plug and the mounting groove are hexagonal in shape, and the end of the limiting reinforcing column, away from the plug, penetrates the inner cavities of the five mounting grooves in sequence and then abuts the inner cavity of the tool bit.

[0013] Preferably, two bolts are respectively inserted into the inner cavities of two limiting holes and then engaged with the threaded holes, and the end of the limiting reinforcing column, away from the plug, is inserted into the five mounting grooves and then fixed by the bolts.

[0014] The utility model discloses technical effects and advantages:

[0015] 1、Compared with the prior art, the multi-blade staggered tooth aluminum milling cutter device can replace the damaged layered blade assembly with a new one without disassembling the whole milling cutter device and discarding the whole milling cutter due to the damage of part of the blades, thereby reducing the cost and avoiding waste.

[0016] 2、Compared with the prior art, the multi-blade staggered tooth aluminum milling cutter device can replace the damaged layered blade assembly with a new one without disassembling the whole milling cutter device and discarding the whole milling cutter due to the damage of part of the blades, thereby reducing the cost and avoiding waste. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the utility model.

[0018] Figure 2 It is a front view structural schematic diagram of the utility model.

[0019] Figure 3 It is a front view structural schematic diagram of the utility model.

[0020] Figure 4 It is a front view structural schematic diagram of the utility model.

[0021] Figure 5 It is a front view structural schematic diagram of the utility model.

[0022] Figure 6 It is a front view structural schematic diagram of the utility model.

[0023] The figure mark is: 1, milling cutter shaft body; 2, driving rod; 21, driving cavity; 3, tool bit; 4, layered blade assembly; 401, installation blade body; 402, cutter; 403, limiting ring; 404, installation slot; 405, limiting slot; 5, limiting hole; 6, bolt; 7, limiting reinforcing column; 8, plug; 9, threaded hole. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] Example 1

[0026] As attached Figures 1 to 6 The multi-tooth aluminum milling cutter device shown includes a milling cutter shaft 1, a layered cutting edge assembly 4, and a limiting reinforcing post 7. A drive rod 2 is provided at the right end of the milling cutter shaft 1, and a drive cavity 21 is opened in the inner cavity of the drive rod 2. A cutter head 3 is provided at the left end of the milling cutter shaft 1. The layered cutting edge assembly 4 is provided at the left end of the cutter head 3. The layered cutting edge assembly 4 is provided in five sets. The layered cutting edge assembly 4 includes a mounting body 401, which is sleeved on the outer surface of the limiting reinforcing post 7. A cutting tool 402 is provided on the outer surface of the mounting body 401, and several sets of cutting tools 402 are provided. A limiting ring 403 is provided at the right edge of the mounting body 401, and a limiting groove 405 is opened at the left edge of the mounting body 401. An installation groove 404 is opened in the inner cavity of the mounting body 401. Limiting holes 5 are opened at the center of the upper and lower ends of the cutter head 3, and bolts 6 are installed in the inner cavity of the limiting holes 5.

[0027] The limiting reinforcing post 7 is installed in the inner cavity of the five-component layered blade assembly 4. A plug 8 is provided on the left side of the limiting reinforcing post 7, and threaded holes 9 are provided at the upper and lower ends of the right side of the limiting reinforcing post 7.

[0028] Among them, the drive cavity 21 of the inner cavity of the drive rod 2 can be closely matched with the power output device of the machine tool to stably transmit the rotational power to the milling cutter shaft 1. Since the five-group layered cutting edge assemblies 4 are independent structures, when a certain group of layered cutting edge assemblies 4 is damaged, such as severe wear of the cutting edge of the tool 402 or damage to the mounting body 401, it is not necessary to disassemble the entire milling cutter device. It is only necessary to rotate the corresponding bolt 6 in the limiting hole 5 to remove the damaged layered cutting edge assembly 4. Then, the new layered cutting edge assembly 4 is installed in the corresponding position through the fitting of the limiting ring 403 and the limiting groove 405. Finally, the limiting reinforcing column 7 is installed through the threaded hole 9 of the engagement surface of the bolt 6 to fix it. This facilitates the individual replacement of the damaged cutting edge, reduces costs and avoids waste. The limiting reinforcing column 7 is located in the five-group layered cutting edge assembly 4. The inner cavity plays a crucial supporting and stabilizing role. It effectively prevents the layered cutting edge assembly 4 from shifting or deforming during cutting, ensuring that the tool 402 maintains good stability even when rotating at high speed and bearing large cutting forces. The plug 8 prevents the outer layered cutting edge assembly 4 from falling off. Furthermore, layered cutting can gradually refine the workpiece surface, allowing each layered cutting edge assembly 4 to progressively refine the workpiece surface. The outermost layered cutting edge assembly 4 is first rough-machined to remove most of the excess material. As the cutting depth increases, the inner layered cutting edge assembly 4 successively performs more precise cutting on the surface, ultimately achieving a high-quality surface finish. This also distributes the cutting force across the different layers of the cutting edge assembly 4, with each layer bearing only a portion of the cutting force, thereby reducing the wear rate of the cutting edge.

[0029] Embodiment 2

[0030] Based on the basis of embodiment 1, the scheme in embodiment 1 is further refined in combination with the specific working mode as follows: Figures 1 to 6 As shown in the figure, see the following description in detail:

[0031] As a preferred embodiment, the five layered cutting edge assemblies 4 abut each other, and the plurality of sets of mounting blades 401 are arranged in equidistant spacing around the outer surface of the mounting blade 401; further, the plurality of sets of mounting blades 401 are arranged in equidistant spacing around the outer surface of the cutter head 3 to help optimize the rotational dynamic balance of the milling cutter, and the five layered cutting edge assemblies 4 sequentially penetrate the surface of the workpiece for cutting.

[0032] As a preferred embodiment, the outer surface of the limiting ring 403 abuts the inner surface of the limiting groove 405, and the inner cavities of the five mounting grooves 404 are in communication with each other, and one side of the inner cavity of one of the mounting grooves 404 has a space for accommodating the plug 8; further, the five mounting grooves 404 are in communication with each other, and one side of the inner cavity of one of the mounting grooves 404 has a space for accommodating the plug 8, which cooperates with the limiting reinforcing column 7 to prevent the layered cutting edge assembly 4 from moving radially, the plug 8 is placed in the reserved space, and after the limiting reinforcing column 7 penetrates the mounting groove 404, the layered cutting edge assembly 4 is limited in the axial direction by the abutment of the plug 8 and the cutter head 3.

[0033] As a preferred embodiment, the limiting reinforcing column 7 is made of titanium alloy, the limiting reinforcing column 7, the plug 8 and the mounting groove 404 are all hexagonal in shape, and the end of the limiting reinforcing column 7 away from the plug 8 abuts the inner cavity of the cutter head 3 after penetrating the inner cavities of the five mounting grooves 404 in turn; further, the limiting reinforcing column 7, the plug 8 and the mounting groove 404 are all hexagonal in shape, which makes their cooperation more compact, and the edges of the hexagons fit together to provide more contact area and better positioning effect, and during the rotation of the milling cutter, the limiting reinforcing column 7 and the mounting groove 404 will not rotate relative to each other, ensuring the position of the five layered cutting edge assemblies 4 fixed in the circumferential direction.

[0034] As a preferred embodiment, the two bolts 6 enter the inner cavities of the two limiting holes 5 and are connected with the threaded holes 9, and the end of the limiting reinforcing column 7 away from the plug 8 enters the five mounting grooves 404 and is fixed by the bolts 6; further, the two bolts 6 are connected with the threaded holes 9 and cooperate with the limiting reinforcing column 7 to fix the layered cutting edge assembly 4, and this double fixation greatly enhances the stability of the connection and prevents the limiting reinforcing column 7 from falling off.

[0035] The working process of the utility model is as follows: firstly, the power output system of the machine tool is tightly matched with the driving cavity 21 in the inner cavity of the driving rod 2, the rotary power is transmitted to the milling cutter shaft body 1, when the machine tool starts to run, the power is stably and efficiently conducted to the milling cutter shaft body 1 through the driving cavity 21, so that the whole milling cutter device starts to rotate, and then the layered blade assembly 4 located at the left end of the tool head 3 carries out cutting action, the five layered blade assemblies 4 abut each other, they abut on the inner surface of the limiting groove 405 of the adjacent mounting blade body 401 through the outer surface of the limiting ring 403 on the mounting blade body 401, the accurate fitting and positioning between each other are realized, the mutual fitting mode makes the layered blade assemblies 4 keep the relative fixed positional relationship in the circumferential direction, and the mounting blade bodies 401 are equidistantly spaced around the outer surface of the tool head 3, the dynamic balance and stability of the whole tool head structure during rotary cutting are guaranteed, meanwhile, the inner cavities between the five mounting grooves 404 are communicated, a convenient channel is provided for the penetration installation of the limiting reinforcing column 7, and the limiting reinforcing column 7 is the key supporting structure, the hexagonal shape is matched with the mounting groove 404 which is also hexagonal;

[0036] During installation, the end of the limiting reinforcing column 7 away from the plug 8 abuts on the inner cavity of the tool head 3 after penetrating the inner cavities of the five mounting grooves 404 in sequence, the edges of the hexagon are abutted, the displacement of the layered blade assembly 4 in the circumferential direction and the axial direction is effectively limited, after the two bolts 6 enter the inner cavities of the two limiting holes 5 of the tool head 3, the threaded holes 9 on the right side upper and lower ends of the limiting reinforcing column 7 are engaged and connected, so that the limiting reinforcing column 7 is firmly fixed in the mounting groove 404 of the five layered blade assemblies 4 and on the tool head 3, at the same time, the plug 8 is placed in the space reserved in the inner cavity of one of the mounting grooves 404, plays the role of plugging and auxiliary limiting, prevents unnecessary movement of the layered blade assembly 4 in the axial direction, then only needs to unscrew the bolt 6 to easily disassemble and reassemble;

[0037] When the milling cutter rotates to cut, the cutter 402 rotates synchronously with the mounting blade body 401, starts to cut the workpiece, since there are five layered blade assemblies 4, they participate in cutting work in turn according to the set order, realize the layered progressive machining effect, the outermost layered blade assembly 4 first contacts the workpiece, processes with relatively large cutting depth and feed rate, quickly removes a large amount of material allowance, then the inner layered blade assembly 4 further finishes the rough machined surface, the above is the working principle of the multi-blade staggered tooth milling cutter device for aluminum.

Claims

1. A multi-blade staggered tooth aluminum milling cutter device, comprising a milling cutter shaft body (1), a layered blade assembly (4) and a limiting reinforcing column (7), characterized in that: The right end of the milling cutter shaft body (1) is provided with a driving rod (2), the inner cavity of the driving rod (2) is provided with a driving cavity (21), the left end of the milling cutter shaft body (1) is provided with a tool bit (3), the layered blade assembly (4) is arranged at the left end of the tool bit (3), the tool bit (3) is provided with five groups, the center of the upper and lower ends of the tool bit (3) is provided with a limiting hole (5), the inner cavity of the limiting hole (5) is provided with a bolt (6). The limiting reinforcing column (7) is installed in the inner cavity of the five groups of layered blade assemblies (4), the left side of the limiting reinforcing column (7) is provided with a plug (8), the upper and lower ends of the right side of the limiting reinforcing column (7) are provided with threaded holes (9).

2. A multi-tooth staggered tooth cutter device for aluminum according to claim 1, characterized in that: The layered blade assembly (4) comprises an installation blade body (401), the installation blade body (401) is sleeved on the outer surface of the limiting reinforcing column (7), the outer surface of the installation blade body (401) is provided with a tool (402), the tool (402) is provided with several groups, the edge of the right side of the installation blade body (401) is provided with a limiting ring (403), the edge of the left side of the installation blade body (401) is provided with a limiting groove (405), and the inner cavity of the installation blade body (401) is provided with an installation groove (404).

3. A multi-tooth staggered tooth cutter device for aluminum according to claim 2, characterized in that: The five groups of layered blade assemblies (4) abut each other, and the several groups of installation blade bodies (401) are circumferentially arranged on the outer surface of the installation blade body (401) in an equidistant spacing manner.

4. A multi-tooth staggered tooth cutter device for milling aluminum as defined in claim 2, wherein: The outer surface of the limiting ring (403) abuts the inner surface of the limiting groove (405), the inner cavities of the five groups of installation grooves (404) are in communication with each other, and one side of the inner cavity of one group of installation grooves (404) is provided with a space for accommodating the plug (8).

5. A multi-tooth staggered tooth cutter device for milling aluminum as defined in claim 4, wherein: The limiting reinforcing column (7) is made of titanium alloy, the limiting reinforcing column (7), the plug (8) and the installation groove (404) are all hexagonal in shape, and the end of the limiting reinforcing column (7) away from the plug (8) penetrates the inner cavities of the five groups of installation grooves (404) in sequence and then abuts the inner cavity of the tool bit (3).

6. A multi-tooth staggered tooth cutter device for milling aluminum as defined in claim 5, wherein: The two groups of bolts (6) penetrate the inner cavities of the two groups of limiting holes (5) and are engaged with the threaded holes (9), and the end of the limiting reinforcing column (7) away from the plug (8) penetrates the five groups of installation grooves (404) and is fixed by the bolts (6).

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