Novel adjustable finish milling cutter structure

Abstract

The utility model discloses a novel adjustable finish milling cutter structure which comprises a finish milling cutter disc, a plurality of supporting and placing blocks are evenly distributed on the outer edge of the finish milling cutter disc, adjustable supporting grooves and placing grooves which are obliquely arranged are formed in the supporting and placing blocks, the adjustable supporting grooves are communicated with the placing grooves, adjustable supporting assemblies are arranged in the adjustable supporting grooves, and the placing grooves are communicated with the adjustable supporting assemblies. Cutter grains are arranged in the placing grooves; the adjustable supporting assembly comprises an adjustable supporting block and an adjusting bolt, a first threaded hole inclining upwards is formed in the inner side of the adjustable supporting groove, and the adjusting bolt penetrates through the adjustable supporting block and is in threaded connection with the interior of the first threaded hole; the adjustable supporting block is obliquely placed in the adjustable supporting groove upwards, the adjustable supporting block is in sliding connection with the adjustable supporting groove, the contact face between the lower end face of the cutter blade and the upper end face of the adjustable supporting block inclines downwards, and the back face of the cutter blade is in sliding connection with the containing groove. The structure of the adjustable supporting assembly of the cutter blade is simplified, and the overall structural complexity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of finish milling cutter technology, and in particular to a novel adjustable finish milling cutter structure. Background Technology

[0002] A finish milling cutter is defined as a rotary cutting tool used for precision milling, designed to achieve high precision and high surface quality. A finish milling cutter typically consists of a cutter head, inserts, and a clamping mechanism. The cutter head is the main body of the finish milling cutter, used to support and fix the inserts, and to connect to the machine tool. The inserts are the key working part of the finish milling cutter, directly participating in the cutting process. Depending on different machining requirements, the inserts can be designed with different shapes and sizes. The clamping mechanism is used to mount the finish milling cutter to the machine tool, ensuring the stability and accuracy of the tool during machining.

[0003] During the machining and assembly of finish milling cutters, insufficient assembly precision between the cutting inserts and the cutter head often results in an uneven surface on the finish milling cutter. Traditional finish milling cutters have fixed, non-adjustable cutting inserts and cutter heads after assembly, which cannot meet the high-precision assembly requirements of finish milling cutters. Existing technology adjusts the height of the cutting inserts on the cutter head by installing an adjusting seat; however, the existing adjusting seat has a complex and large overall structure, thus increasing the overall structural complexity of the finish milling cutter. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a novel adjustable finish milling cutter structure, which simplifies the adjustment structure of the cutting inserts and reduces the structural complexity of the finish milling cutter.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel adjustable milling cutter structure, comprising a milling cutter disc, wherein a plurality of support placement blocks are evenly distributed along the outer edge of the milling cutter disc, and the support placement blocks are provided with an inclined adjustable support groove and a placement groove, wherein the adjustable support groove and the placement groove are interconnected, wherein an adjustable support component is provided in the adjustable support groove, and a cutting insert is provided in the placement groove;

[0006] The adjustable support assembly includes an adjustable support block and an adjusting bolt. The inner side of the adjustable support groove is provided with an upwardly inclined first threaded hole. The adjusting bolt passes through the adjustable support block and is threaded into the first threaded hole.

[0007] The shape of the adjustable support groove is adapted to the shape of the adjustable support block. The adjustable support block is placed obliquely upward in the adjustable support groove. A sliding gap is left between the adjustable support block and the adjustable support groove. The adjustable support block is slidably connected to the adjustable support groove. The contact surface between the lower end face of the blade and the upper end face of the adjustable support block is obliquely downward. The back side of the blade is slidably connected to the placement groove.

[0008] When the adjusting bolt is turned, the adjustable support block is driven to rise or fall along the inclined direction of the adjustable support groove, thereby causing the blade to rise or fall along the inclined direction of the placement groove.

[0009] Furthermore, a second threaded hole is provided on the inner side of the placement groove, and a tightening bolt is provided through the cutting tool. After the cutting tool is adjusted, the tightening bolt is screwed to connect with the second threaded hole so that the cutting tool and the milling cutter head are relatively fixed.

[0010] Furthermore, the adjustable support assembly includes a springback auxiliary component, which is sleeved on the outside of the adjusting bolt. One end of the springback auxiliary component abuts against the outside of the adjustable support block, and the other end abuts against the outer end face of the first threaded hole.

[0011] Furthermore, the springback auxiliary component includes a spring.

[0012] Furthermore, the side end of the support block is horizontally inclined with a tightening groove, and the tightening groove is in the same direction as the second threaded hole.

[0013] Furthermore, the angle between the adjusting bolt and the cutting plane of the milling cutter disc is between 8° and 15°, the angle between the lower inclined surface of the adjustable support groove and the cutting plane of the milling cutter disc is between 60° and 70°, and the angle between the inclined surface of the placement groove and the cutting plane of the milling cutter disc is between 85° and 90°.

[0014] Furthermore, an anti-cavity groove is provided at the contact position between the blade and the placement groove on the support block.

[0015] Furthermore, a cooling port is provided between adjacent support blocks, and the cooling port connects the inner and outer sides of the milling cutter head.

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

[0017] This invention simplifies the adjustable support assembly into an upward-sloping adjusting bolt and an adjustable support block. By adjusting the relative positional relationship between the adjusting bolt, the adjustable support block, and the cutting insert, the adjusting bolt, when turned, drives the adjustable support block to rise or fall along the inclined direction of the adjustable support groove, thereby causing the cutting insert to rise or fall along the inclined direction of the placement groove. This allows for convenient and quick height adjustment of each cutting insert on the milling cutter head. At the same time, the adjustable support assembly has fewer components and a simpler structure, reducing manufacturing and usage costs, and significantly reducing the structural complexity of the milling cutter. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the novel adjustable finish milling cutter in this utility model;

[0019] Figure 2 This is a partial enlarged view of the adjustable support groove and the placement groove in this utility model;

[0020] Figure 3 This is a schematic diagram of the adjustable support component in this utility model.

[0021] Reference numerals: 1. Milling cutter head; 2. Support placement block; 21. Adjustable support groove; 22. Placement groove; 23. First threaded hole; 24. Second threaded hole; 3. Adjustable support assembly; 31. Adjustable support block; 32. Adjusting bolt; 33. Springback auxiliary component; 4. Cutting insert; 5. Tightening machining groove; 6. Clearance groove; 7. Cooling port; 8. Tightening bolt. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] Example 1, referring to Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides a novel adjustable milling cutter structure, which can significantly reduce the structural complexity of the milling cutter structure. It includes a milling cutter disc 1, and multiple support placement blocks 2 are evenly distributed on the outer edge of the milling cutter disc 1. The support placement blocks 2 are provided with an inclined adjustable support groove 21 and a placement groove 22. The adjustable support groove 21 and the placement groove 22 are interconnected. An adjustable support component 3 is provided in the adjustable support groove 21, and a cutting insert 4 is provided in the placement groove 22.

[0024] The adjustable support assembly 3 includes an adjustable support block 31 and an adjusting bolt 32. The inner side of the adjustable support groove 21 is provided with an upwardly inclined first threaded hole 23. The adjusting bolt 32 passes through the adjustable support block 31 and is threaded into the first threaded hole 23.

[0025] The shape of the adjustable support groove 21 is adapted to the shape of the adjustable support block 31. The adjustable support block 31 is placed obliquely upward in the adjustable support groove 21. There is a sliding gap between the adjustable support block 31 and the adjustable support groove 21. The adjustable support block 31 and the adjustable support groove 21 are slidably connected. The contact surface between the lower end face of the blade 4 and the upper end face of the adjustable support block 31 is obliquely downward. The back of the blade 4 is slidably connected to the placement groove 22.

[0026] When the adjusting bolt 32 is turned, the adjustable support block 31 is driven to rise or fall along the inclined direction of the adjustable support groove 21, thereby driving the blade 4 to rise or fall along the inclined direction of the placement groove 22.

[0027] Working principle of Example 1:

[0028] In this embodiment, the adjustable support assembly 3 is simplified to an upward-sloping adjusting bolt 32 and an adjustable support block 31. By adjusting the relative positional relationship between the adjusting bolt 32, the adjustable support block 31 and the cutting insert 4, the adjusting bolt 32 drives the adjustable support block 31 to rise or fall along the inclined direction of the adjustable support groove 21 when it is turned, thereby driving the cutting insert 4 to rise or fall along the inclined direction of the placement groove 22. This conveniently and quickly achieves the height adjustment of each cutting insert 4 on the milling cutter head 1. At the same time, the adjustable support assembly 3 has fewer components and a simpler structure, reducing manufacturing and usage costs, and significantly reducing the structural complexity of the milling cutter.

[0029] When the adjusting bolt 32 is tightened inward, the adjustable support block 31 rises along the inclined direction of the adjustable support groove 21, causing the blade 4 to rise along the inclined direction of the placement groove 22; when the adjusting bolt 32 is loosened inward, the adjustable support block 31 falls along the inclined direction of the adjustable support groove 21, causing the blade 4 to fall along the inclined direction of the placement groove 22.

[0030] Preferably, a second threaded hole 24 is provided on the inner side of the placement groove 22, and a tightening bolt 8 is provided through the cutting tool 4. After the cutting tool 4 is adjusted, the tightening bolt 8 is screwed to connect with the second threaded hole 24 so that the cutting tool 4 is fixed relative to the milling cutter head 1.

[0031] Specifically, in this embodiment, when the height position of the cutting tool 4 on the milling cutter head 1 has not been adjusted, the tightening bolt 8 and the second threaded hole 24 are in a pre-tightened state to facilitate the height adjustment of the cutting tool 4; when the height position of the cutting tool 4 on the milling cutter head 1 has been adjusted, the tightening bolt 8 and the second threaded hole 24 are threaded together to fix the cutting tool 4.

[0032] Example 2, refer to Figure 3 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a springback auxiliary component 33, which can further improve the height adjustment effect of the blade 4. The adjustable support component 3 includes the springback auxiliary component 33, which is sleeved on the outside of the adjusting bolt 32. One end of the springback auxiliary component 33 abuts against the outside of the adjustable support block 31, and the other end abuts against the outer end face of the first threaded hole 23.

[0033] Preferably, the springback aid 33 includes a spring.

[0034] Working principle of Example 2:

[0035] In Example 1, the descent of the cutting tool 4 requires the adjusting bolt 32 to be loosened inwards. The adjustable support block 31 descends along the inclined direction of the adjustable support groove 21 under its own weight, while the cutting tool 4 descends along the inclined direction of the placement groove 22 under its own weight. When the frictional force between the adjustable support block 31 and the adjustable support groove 21 increases, the cutting tool 4 may be unable to slide down along the placement groove 22, affecting the height adjustment of the cutting tool 4 on the milling cutter head 1. By attaching a spring-loaded auxiliary component 33 to the adjusting bolt 32, when the adjusting bolt 32 is tightened inwards, the spring-loaded auxiliary component 33 is compressed by the adjustable support block 31, generating elastic potential energy. When the adjusting bolt 32 is loosened inwards, the elastic potential energy of the spring-loaded auxiliary component 33 is released and converted into mechanical energy, pushing the adjustable support block 31 down along the inclined direction of the adjustable support groove 21, thereby driving the cutting tool 4 down along the inclined direction of the placement groove 22. This achieves assisted descent of the cutting tool 4, further improving the height adjustment effect of the cutting tool 4.

[0036] Preferably, the side end of the support block 2 is provided with a tightening groove 5 at a horizontal angle, and the tightening groove 5 is in the same direction as the second threaded hole 24.

[0037] Specifically, in this embodiment, by opening a tightening processing groove 5, the processing component passes through the tightening processing groove 5 to loosen or tighten the tightening bolt 8 during assembly, thereby improving the ease of assembly.

[0038] Preferably, the angle between the adjusting bolt 32 and the cutting plane of the milling cutter 1 is between 8° and 15°, the angle between the lower inclined surface of the adjustable support groove 21 and the cutting plane of the milling cutter 1 is between 60° and 70°, and the angle between the inclined surface of the placement groove 22 and the cutting plane of the milling cutter 1 is between 85° and 90°.

[0039] Specifically, in this embodiment, the angle between the adjusting bolt 32 and the cutting plane of the milling cutter 1 is preferably 10°, the angle between the lower inclined surface of the adjustable support groove 21 and the cutting plane of the milling cutter 1 is preferably 63.03°, and the angle between the inclined surface of the placement groove 22 and the cutting plane of the milling cutter 1 is preferably 86.17°. By setting the above angles, the optimal lifting and lowering adjustment effect among the adjusting bolt 32, the adjustable support block 31, and the cutting tool 4 can be ensured.

[0040] Preferably, a clearance groove 6 is provided at the contact position between the blade 4 on the support block 2 and the placement groove 22.

[0041] Specifically, in this embodiment, by setting the clearance groove 6, the collision between the cutting edge 4 and the surface of the milling cutter head 1 during the lifting and lowering adjustment can be avoided, which would cause damage to the cutting edge 4 and effectively improve the durability of the cutting edge 4 during the lifting and lowering adjustment process.

[0042] Preferably, a cooling port 7 is provided between adjacent support blocks 2, and the cooling port 7 connects the inner and outer sides of the milling cutter disc 1.

[0043] Specifically, in this embodiment, by providing a cooling port 7, the milling cutter 1 is cooled down through the cooling port 7 during the cutting process, thereby improving the cooling performance of the milling cutter 1.

[0044] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A novel adjustable finishing cutter structure, characterized by, The application relates to a precision milling cutter head (1), which is uniformly provided with a plurality of supporting and placing blocks (2) on the outer edge, the supporting and placing blocks (2) are provided with an adjustable supporting groove (21) and a placing groove (22) which are arranged in an inclined manner, the adjustable supporting groove (21) and the placing groove (22) are in communication with each other, the adjustable supporting groove (21) is provided with an adjustable supporting assembly (3), and the placing groove (22) is provided with a cutter grain (4). The adjustable supporting assembly (3) comprises an adjustable supporting block (31) and an adjusting bolt (32), the inner side of the adjustable supporting groove (21) is provided with an upwardly inclined first threaded hole (23), and the adjusting bolt (32) penetrates through the adjustable supporting block (31) and is threadedly connected in the first threaded hole (23). The shape of the adjustable supporting groove (21) is matched with the shape of the adjustable supporting block (31), the adjustable supporting block (31) is arranged in an upwardly inclined manner in the adjustable supporting groove (21), a sliding gap is left between the adjustable supporting block (31) and the adjustable supporting groove (21), the adjustable supporting block (31) and the adjustable supporting groove (21) are in sliding connection, the contact surface between the lower end surface of the cutter grain (4) and the upper end surface of the adjustable supporting block (31) is inclined downwardly, and the back surface of the cutter grain (4) is in sliding connection with the placing groove (22). When the adjusting bolt (32) is screwed, the adjustable supporting block (31) is driven to ascend or descend along the inclined direction of the adjustable supporting groove (21), so as to drive the cutter grain (4) to ascend or descend along the inclined direction of the placing groove (22).

2. The novel adjustable finishing cutter structure according to claim 1, wherein: The inner side of the placing groove (22) is provided with a second threaded hole (24), a tightening bolt (8) penetrates through the cutter grain (4), and when the cutter grain (4) is adjusted, the tightening bolt (8) is screwed and threadedly connected with the second threaded hole (24), so that the cutter grain (4) is relatively fixed with the precision milling cutter head (1).

3. The novel adjustable finishing cutter structure according to claim 1, wherein: The adjustable supporting assembly (3) comprises a rebounding auxiliary part (33), the rebounding auxiliary part (33) is sleeved on the outer side of the adjusting bolt (32), one end of the rebounding auxiliary part (33) abuts against the outer side of the adjustable supporting block (31), and the other end abuts against the outer end surface of the first threaded hole (23).

4. The novel adjustable finishing cutter structure according to claim 3, wherein: The rebounding auxiliary part (33) comprises a spring.

5. The novel adjustable finishing cutter structure according to claim 2, wherein: The side end of the supporting and placing block (2) is horizontally and obliquely provided with a tightening machining groove (5), and the tightening machining groove (5) is in the same direction as the second threaded hole (24).

6. The novel adjustable finishing cutter structure according to claim 1, wherein: The included angle between the adjusting bolt (32) and the cutting plane of the precision milling cutter head (1) ranges from 8 to 15 degrees, the included angle between the lower inclined surface of the adjustable supporting groove (21) and the cutting plane of the precision milling cutter head (1) ranges from 60 to 70 degrees, and the included angle between the inclined surface of the placing groove (22) and the cutting plane of the precision milling cutter head (1) ranges from 85 to 90 degrees.

7. The novel adjustable finishing cutter structure as claimed in claim 1, wherein: The supporting and placing block (2) is provided with an emptying groove (6) at the contact position of the cutter grain (4) and the placing groove (22).

8. The novel adjustable finishing cutter structure according to claim 1, wherein: Cooling through holes (7) are arranged between the adjacent support placement blocks (2) and communicate the inner side and the outer side of the finishing milling cutter head (1).

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