A coated milling cutter for finishing glass fiber boards

Abstract

This utility model relates to the field of fiberglass board precision machining technology, specifically a coated milling cutter for fiberglass board precision machining. The coated milling cutter includes: a cutter shank, which includes a cutter body, one end of which is provided with a cutter holder. A blind hole is formed in the cutter holder, and a threaded hole is formed on the cutter body through the blind hole; a cutter head, which is installed in the blind hole and includes a cutter seat. Several cutting blades are provided on the cutter seat, each blade having a clearance surface and a chamfered surface, forming a cutting head between the clearance surface and the chamfered surface; and a screw, which passes through the threaded hole and the blind hole sequentially from the outside in, fixing the cutter head to the cutter shank. This utility model has the advantages of simple structure, reasonable design, and a split structure. It allows for replacement of the cutter head after wear, without replacing the entire coated milling cutter, thus reducing production costs. It is worthy of widespread promotion and application.

Description

Technical Field

[0001] This utility model relates to the field of glass fiberboard finishing technology, specifically a coated milling cutter for glass fiberboard finishing. Background Technology

[0002] A milling cutter is a rotating cutting tool with one or more cutting teeth used for milling operations. During operation, the cutting teeth sequentially and intermittently remove the excess material from the workpiece. Milling cutters are mainly used on milling machines to machine planes, steps, grooves, shaped surfaces, and cut off workpieces. Coated milling cutters are required for the finishing of fiberglass boards.

[0003] Existing coated end mills have complex structures and unreasonable designs. Moreover, coated end mills are usually a single piece of material. After the cutting head of the coated end mill wears out, the entire coated end mill needs to be replaced, resulting in waste and increased production costs. Utility Model Content

[0004] The purpose of this utility model is to provide a coated milling cutter for precision machining of fiberglass boards. It has the advantages of simple structure, reasonable design, and split structure. After the cutter head wears out, the cutter head can be replaced without replacing the entire coated milling cutter, thus reducing production costs and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a coated milling cutter for precision machining of fiberglass board, comprising: a cutter bar, the cutter bar including a cutter body, a cutter holder provided at one end of the cutter body, a blind hole provided in the cutter holder, and a threaded hole through the blind hole provided on the cutter body;

[0006] The cutter head is installed in a blind hole and includes a cutter holder. The cutter holder is provided with a plurality of blades, each of which is provided with a clearance surface and a beveled surface, and a cutting head is formed between the clearance surface and the beveled surface.

[0007] A screw, which passes through a threaded hole and a blind hole from the outside in, fixes the cutting head to the cutting shank.

[0008] Preferably, the end of the tool holder away from the blade has four limiting grooves, and the tool holder is shaped like a frustum. The diameter of the tool holder gradually decreases from the end closest to the blade towards the other end.

[0009] Preferably, each blade is arranged in a spiral shape on the surface of the blade holder, and a spiral guide groove is provided between several blades.

[0010] Preferably, the tool holder is provided with a connecting seat at one end near the tool bar. The connecting seat includes two staggered limiting blocks one and two limiting blocks two. The cross sections of the two limiting blocks one and the two limiting blocks two are all fan-shaped, and each has a guide surface on the side facing the tool bar, and is respectively embedded in four limiting grooves.

[0011] Preferably, the central angle values ​​of the two limiting blocks are both 60° and the central angle values ​​of the two limiting blocks are both 30°.

[0012] Preferably, the connecting seat further includes a short rod, one end of which is connected to the tool holder, and the other end is embedded in the blind hole, and the short rod has a through hole facing the threaded hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a coated milling cutter for precision machining of fiberglass boards. The coated milling cutter includes a cutter shank, a cutter head, and a screw. The overall structure is simple and reasonably designed. By setting the cutter shank, cutter head, and screw, the integrated coated milling cutter can be disassembled. When the cutting edge on the surface of the cutter holder is worn or the cutter holder is broken, the cutter shank and cutter head can be separated by unscrewing the screw, and a new cutter head can be replaced. The split structure can avoid wasting the cutter shank and reduce production costs.

[0015] 2. The connecting seat in this utility model includes two staggered limiting blocks 1 and two limiting blocks 2. The connecting seat also includes a short rod, one end of which is connected to the tool holder, and the other end is embedded in the blind hole. The short rod has a through hole facing the threaded hole. Through the two symmetrically arranged limiting blocks 1 and limiting blocks 2 of different sizes, there are guide surfaces on their surfaces, which can guide the tool head during installation, saving alignment time, improving the efficiency of tool head replacement, and increasing production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This utility model Figure 2 A schematic diagram of the middle tool holder from below;

[0019] Figure 4 This utility model Figure 2 A front view schematic diagram of the middle cutter head.

[0020] The reference numerals and names in the figure are as follows:

[0021] 1. Tool holder; 11. Tool body; 12. Tool holder; 13. Blind hole; 14. Limiting groove; 15. Threaded hole; 2. Tool head; 21. Tool holder; 22. Blade; 221. Avoidance surface; 222. Beveled surface; 223. Cutting head; 23. Material guide groove; 24. Connecting seat; 241. Limiting block one; 242. Limiting block two; 243. Short rod; 244. Through hole; 3. Screw. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] Please see Figures 1 to 4 One embodiment of this utility model provides: a coated milling cutter for precision machining of fiberglass boards, comprising:

[0026] The tool holder 1 includes a tool body 11. A tool holder 12 is provided at one end of the tool body 11. A blind hole 13 is provided in the tool holder 12. A threaded hole 15 is provided on the tool body 11 through the blind hole 13. Four limiting grooves 14 are provided at the end of the tool holder 12 away from the tool body 11. The tool holder 12 is shaped like a frustum. The diameter of the tool holder 12 gradually decreases from the end closer to the tool body 11 toward the other end.

[0027] The cutter head 2 is installed inside the blind hole 13 and includes a cutter holder 21. The cutter holder 21 is provided with several blades 22, each blade 22 having a clearance surface 221 and a chamfered surface 222. A cutting head 223 is formed between the clearance surface 221 and the chamfered surface 222. Each blade 22 is spirally arranged on the surface of the cutter holder 21, and a spiral guide groove 23 is provided between the blades 22. A connecting seat 24 is provided at one end of the cutter holder 21 near the cutter bar 1. The connecting seat 24 includes two staggered limiting blocks 24. The connecting seat 24 also includes two limiting blocks 241 and two limiting blocks 242. The cross-sections of the two limiting blocks 241 and two limiting blocks 242 are all fan-shaped, and each has a guide surface on the side facing the tool holder 1. They are respectively embedded in four limiting grooves 14. The central angle of the two limiting blocks 241 is 60° and the central angle of the two limiting blocks 242 is 30°. The connecting seat 24 also includes a short rod 243. One end of the short rod 243 is connected to the tool holder 21, and the other end is embedded in the blind hole 13. The short rod 243 has a through hole 244 facing the threaded hole 15.

[0028] Screw 3 passes through threaded hole 15 and blind hole 13 from the outside to the inside, fixing the cutter head 2 onto the cutter shank 1.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A coated milling cutter for finishing fiberglass boards, characterized in that, include: A tool holder (1) includes a tool body (11), a tool holder (12) is provided at one end of the tool body (11), a blind hole (13) is provided in the tool holder (12), and a threaded hole (15) is provided on the tool body (11) through the blind hole (13); The cutting head (2) is installed in the blind hole (13) and includes a cutting head (21). The cutting head (2) is provided with a plurality of blades (22). Each blade (22) is provided with a clearance surface (221) and a chamfered surface (222). A cutting head (223) is formed between the clearance surface (221) and the chamfered surface (222). The screw (3) passes through the threaded hole (15) and the blind hole (13) from the outside to the inside, and fixes the cutting head (2) on the cutting rod (1).

2. The coated milling cutter for precision machining of fiberglass board according to claim 1, characterized in that: The tool holder (12) has four limiting grooves (14) at the end away from the blade (11), and the tool holder (12) is shaped like a frustum. The diameter of the tool holder (12) gradually decreases from the end closest to the blade (11) toward the other end.

3. The coated milling cutter for finishing fiberglass boards according to claim 1, characterized in that: Each blade (22) is spirally arranged on the surface of the blade holder (21), and a spiral guide groove (23) is provided between several blades (22).

4. The coated milling cutter for finishing fiberglass boards according to claim 1, characterized in that: The tool holder (21) is provided with a connecting seat (24) at one end near the tool bar (1). The connecting seat (24) includes two staggered limiting blocks one (241) and two limiting blocks two (242). The cross sections of the two limiting blocks one (241) and the two limiting blocks two (242) are all fan-shaped, and each has a guide surface on the side facing the tool bar (1), and is respectively embedded in four limiting grooves (14).

5. A coated milling cutter for finishing fiberglass boards according to claim 4, characterized in that: The central angle values ​​of the two limiting blocks (241) are both 60°, and the central angle values ​​of the two limiting blocks (242) are both 30°.

6. The coated milling cutter for finishing fiberglass boards according to claim 4, characterized in that: The connecting seat (24) also includes a short rod (243), one end of which is connected to the tool holder (21), and the other end is embedded in the blind hole (13). The short rod (243) has a through hole (244) facing the threaded hole (15).

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