Ball end mill

Abstract

The utility model discloses a ball end mill, which relates to the technical field of ball end mills, and comprises a motor connecting rod and a milling cutter base, the lower end of the motor connecting rod is fixedly connected with a sliding rod, the outer side wall of the sliding rod is provided with a plurality of fixing holes, and the outer side wall of the sliding rod is sleeved with a sliding sleeve rod; a fixed clamping rod is arranged on the outer side wall of the sliding sleeve rod in a penetrating mode, the lower end face of the sliding sleeve rod is sleeved with a limiting block, the lower end of the limiting block is sleeved with a fixed buckle, the two sides of the outer side wall of the milling cutter base are both fixedly connected with fixed blocks, and the inner side walls of the two fixed blocks are both rotationally connected with connecting plates. The ball end mill disclosed by the utility model has the advantages that vibration is buffered, so that the ball end mill can mill materials more stably and accurately, the precision is better and higher, and the ball end mill also has the functions of adjusting the length of the ball end mill and enabling the ball end mill to be more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of ball end mills, in particular to a ball end mill Background Art

[0002] A ball end mill is a tool with a cutting edge similar to a ball head, which is assembled on a milling machine and used for milling various curved surfaces and arc grooves. The ball end mill is also called an R cutter. The ball end mill can mill die steel, cast iron, carbon steel, alloy steel, tool steel, and general iron materials, and belongs to an end mill. The ball end mill can operate normally in a high-temperature environment.

[0003] Most of the existing ball end mills tend to vibrate to a certain extent due to the properties of the material during milling. After long-term use, it may cause deviation during milling of the ball end mill, resulting in insufficient accuracy of the manufactured product. Moreover, most of the existing ball end mills cannot adjust their own length for milling materials, which is inconvenient to use. Content of the Utility Model

[0004] Technical Problem to be Solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a ball end mill.

[0006] Technical Solution

[0007] To achieve the above purpose, the utility model provides the following technical solution: a ball end mill, including a motor connecting rod and a milling cutter base. The lower end of the motor connecting rod is fixedly connected with a sliding rod. A plurality of fixing holes are arranged on the outer side wall of the sliding rod. A sliding sleeve rod is sleeved on the outer side wall of the sliding rod. A fixing clamping rod penetrates through the outer side wall of the sliding sleeve rod. A limiting block is sleeved on the lower end face of the sliding sleeve rod. A fixing buckle is sleeved on the lower end of the limiting block;

[0008] Both sides of the outer side wall of the milling cutter base are fixedly connected with fixing blocks. The inner side walls of the two fixing blocks are both rotatably connected with connecting plates. The ends of the two connecting plates away from the fixing blocks are rotatably connected with rotating shafts. The inner side walls of the two rotating shafts away from the connecting plates are rotatably connected with rotating blocks. One side of the two rotating blocks is fixedly connected with a spring rod.

[0009] Above-mentioned, one end of the two spring rods away from the rotating block is rotatably connected with a connecting block. One side of the two connecting blocks is fixedly connected with the milling cutter base.

[0010] Above-mentioned, the lower end face of the milling cutter base is fixedly connected with a ball end mill. A fixing buckle is sleeved on the upper end face of the milling cutter base.

[0011] As described above, a threaded groove is provided on the inner side wall of the milling cutter base, and a connecting rod is threadedly connected to the inner side wall of the threaded groove.

[0012] As described above, a limiting block is fixedly connected to the upper end surface of the connecting rod, and the connecting rod is located within the fixed buckle.

[0013] As described above, two limiting grooves are provided on the inner side wall of the fixed buckle, and an anti-slip layer is laid on the inner side walls of the two limiting grooves.

[0014] As described above, a limiting block is fixedly connected to the inner side wall of the upper limiting groove, and the milling cutter base is rotatably connected to the inner side wall of the lower limiting groove. Beneficial Effects

[0015] Compared with the prior art, this ball-end milling cutter has the following beneficial effects:

[0016] First, through the fixed block, connecting plate, rotating shaft, rotating block, spring rod, connecting block and milling cutter base provided by the present utility model, when the device uses the ball-end milling cutter to mill materials, the generated vibration is transmitted to the fixed block through the milling cutter base. The connecting plate is driven by the fixed block to swing, the vibration is transmitted to the rotating block and the spring rod through the rotating shaft, and the connecting plate is pushed back to its original position by the elastic force of the spring rod, thereby buffering the vibration, enabling the device to mill the material more stably and precisely with better and higher precision.

[0017] Second, through the motor connecting rod, sliding rod, fixed hole, sliding sleeve rod, fixed clamping rod, limiting block and fixed buckle provided by the present utility model, by sliding the sliding rod within the sliding sleeve rod, the length of the motor connecting rod is adjusted, enabling the overall length of the ball-end milling cutter to be adjusted. By screwing the fixed clamping rod into the fixed hole, the length of the device is fixed, enabling the device to adjust the length of the ball-end milling cutter, making the ball-end milling cutter more convenient to use.

[0018] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. Brief Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 It is a left-view sectional structural schematic diagram of the present utility model;

[0021] Figure 3 It is a structural schematic diagram of the length adjustment mechanism of the present utility model;

[0022] Figure 4 For the present utility model Figure 1 is a schematic enlarged structure diagram of part A in the present utility model.

[0023] In the figure: 1, motor connecting rod; 2, sliding rod; 3, fixing hole; 4, sliding sleeve rod; 5, fixing clamping rod; 6, limiting block; 7, fixing buckle; 8, limiting groove; 9, connecting block; 10, fixing block; 11, connecting plate; 12, rotating shaft; 13, rotating block; 14, spring rod; 15, connecting block; 16, milling cutter base; 17, ball nose milling cutter; 18, connecting rod; 19, anti-slip layer. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1-4 shown, the present utility model provides a technical solution: a ball nose end mill, including a motor connecting rod 1 and a milling cutter base 16. The lower end of the motor connecting rod 1 is fixedly connected with a sliding rod 2. A plurality of fixing holes 3 are arranged on the outer side wall of the sliding rod 2. A sliding sleeve rod 4 is sleeved on the outer side wall of the sliding rod 2. A fixing clamping rod 5 penetrates through the outer side wall of the sliding sleeve rod 4. A limiting block 6 is sleeved on the lower end surface of the sliding sleeve rod 4. A fixing buckle 7 is sleeved on the lower end of the limiting block 6;

[0026] Both sides of the outer side wall of the milling cutter base 16 are fixedly connected with fixing blocks 10. Connecting plates 11 are rotatably connected to the inner side walls of the two fixing blocks 10. Rotating shafts 12 are rotatably connected to the ends of the two connecting plates 11 away from the fixing blocks 10. Rotating blocks 13 are rotatably connected to the sides of the two rotating shafts 12 away from the connecting plates 11. A spring rod 14 is fixedly connected to one side of the two rotating blocks 13.

[0027] One end of two spring rods 14 away from the rotating block 13 is rotatably connected with a connecting block 15. One side of the two connecting blocks 15 is fixedly connected with a milling cutter base 16. The lower end face of the milling cutter base 16 is fixedly connected with a ball-end milling cutter 17. A fixing buckle 7 is sleeved on the upper end face of the milling cutter base 16. A threaded groove 9 is opened on the inner side wall of the milling cutter base 16. The inner side wall of the threaded groove 9 is threadedly connected with a connecting rod 18. The upper end face of the connecting rod 18 is fixedly connected with a limiting block 6. The connecting rod 18 is located inside the fixing buckle 7. Two limiting grooves 8 are opened on the inner side wall of the fixing buckle 7. An anti-slip layer 19 is laid on the inner side wall of the two limiting grooves 8. The inner side wall of the upper limiting groove 8 is fixedly connected with the limiting block 6. The inner side wall of the lower limiting groove 8 is rotatably connected with the milling cutter base 16.

[0028] Working principle: When the device is in use, by sliding the sliding rod 2 in the sliding sleeve rod 4, the length of the motor connecting rod 1 is adjusted, so that the overall length of the ball-end milling cutter 17 can be adjusted. By screwing the fixed clamping rod 5 into the fixing hole 3, the length of the device is fixed, so that the device can adjust the length of the ball-end milling cutter 17, making the ball-end milling cutter 17 more convenient to use. The motor connecting rod 1 is clamped into the motor. When using the ball-end milling cutter 17 to mill materials, the generated vibration is transmitted to the fixed block 10 through the milling cutter base 16. The connecting plate 11 is driven to swing by the fixed block 10. The vibration is transmitted to the rotating block 13 and the spring rod 14 through the rotating shaft 12. The connecting plate 11 is pushed back to its original position by the elastic force of the spring rod 14, so as to buffer the vibration.

[0029] It should be noted that in this article, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixedly installed", "installed", "connected", "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

[0030] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A ball end mill, comprising a motor connecting rod (1) and a milling cutter base (16), characterized in that: The lower end of the motor connecting rod (1) is fixedly connected to a sliding rod (2), the outer wall of the sliding rod (2) is provided with a plurality of fixing holes (3), the outer wall of the sliding rod (2) is sleeved with a sliding sleeve rod (4), the outer wall of the sliding sleeve rod (4) is penetrated by a fixing clamping rod (5), the lower end surface of the sliding sleeve rod (4) is sleeved with a limit block (6), and the lower end of the limit block (6) is sleeved with a fixing buckle (7); Both sides of the outer wall of the milling cutter base (16) are fixedly connected to fixed blocks (10), the inner walls of the two fixed blocks (10) are rotatably connected to connecting plates (11), the ends of the two connecting plates (11) away from the fixed blocks (10) are rotatably connected to rotating shafts (12), the inner walls of the two rotating shafts (12) away from the connecting plates (11) are rotatably connected to rotating blocks (13), and one side of the two rotating blocks (13) is fixedly connected to a spring rod (14).

2. A ball end mill according to claim 1, characterized in that: One end of the two spring rods (14) away from the rotating block (13) is rotatably connected to a connecting block (15), and one side of the two connecting blocks (15) is fixedly connected to a milling cutter base (16).

3. A ball end mill according to claim 1, characterized in that: A ball-end milling cutter (17) is fixedly connected to the lower end surface of the milling cutter base (16), and a fixing buckle (7) is sleeved on the upper end surface of the milling cutter base (16).

4. A ball end mill according to claim 1, characterized in that: The inner side wall of the milling cutter base (16) is provided with a threaded groove (9), and the inner side wall of the threaded groove (9) is threadedly connected to a connecting rod (18).

5. A ball end mill according to claim 4, characterized in that: The upper end surface of the connecting rod (18) is fixedly connected to the limiting block (6), and the connecting rod (18) is located in the fixing buckle (7).

6. A ball end mill according to claim 1, characterized in that: The inner side wall of the fixing buckle (7) is provided with two limiting grooves (8), and the inner side walls of the two limiting grooves (8) are paved with an anti-slip layer (19).

7. A ball end mill according to claim 6, characterized in that: The inner side wall of the limiting groove (8) near the upper end is fixedly connected to the limiting block (6), and the inner side wall of the limiting groove (8) near the lower end is rotatably connected to the milling cutter base (16).

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