Face milling cutter disc with wedge-shaped block fixed blade structure

Abstract

The utility model relates to the technical field of face milling cutter discs, in particular to a face milling cutter disc of a wedge-shaped block fixed blade structure, which comprises a cutter body, a cutter disc seat is formed at the bottom of the cutter body, a plurality of cutter structures are annularly arranged at the bottom of the cutter disc seat at equal intervals, and each cutter structure comprises a milling cutter block and a milling cutter groove used for installing the milling cutter block. The milling cutter groove is communicated with a wedge-shaped groove, and the wedge-shaped groove is provided with a wedge-shaped block for fixing the milling cutter block; a plurality of milling cutter surfaces are formed on the periphery of the outer ring of the milling cutter block; during mounting, the milling cutter block is embedded into the milling cutter groove, and then the milling cutter block is compressed and mounted through matching of the wedge-shaped block and the wedge-shaped groove, so that the risk that the milling cutter block falls off during milling is prevented; in addition, when one milling cutter face of the milling cutter block is abraded greatly and needs to be replaced, the milling cutter block can be detached and then rotated, the other unused milling cutter face is exposed downwards for milling, a new milling cutter block does not need to be replaced, the original milling cutter block can be continuously used, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of face milling cutter head technology, and in particular to a face milling cutter head with a wedge block fixed insert structure. Background Technology

[0002] Face milling cutters have cutting edges on both the end face perpendicular to the cutter shank and the outer diameter, and are mainly used for milling flat surfaces. The cutting edge on the outer diameter is the main cutting edge, while the cutting edge on the end face functions similarly to a scraper. Compared to end mills with inserts, face milling cutters have shorter cutting edges. Face milling cutters are divided into two main categories: one type uses brazing to fix carbide inserts to the cutting teeth, which are then mounted on the cutter body; this is called a toothed face milling cutter. The second type directly mounts carbide inserts to the cutter body and then secures them with screws, etc.; this is called an indexable clamp-on end mill.

[0003] Currently, face milling cutter heads typically include a trumpet-shaped cutter head body and a insert slot at one end of the cutter head body. The insert slot is used to fix the face milling inserts onto the face milling cutter head. Existing face milling cutters usually only have one milling face. When the face milling cutter has been used for a long time, it needs to be replaced with a new face milling cutter, which can easily lead to waste. Utility Model Content

[0004] The purpose of this invention is to provide a face milling cutter disc with a wedge-shaped block fixed blade structure to address the shortcomings of existing technologies.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A face milling cutter head with a wedge block fixing insert structure includes a cutter body, a cutter head seat formed at the bottom of the cutter body, and multiple cutter structures arranged in a ring at equal intervals at the bottom of the cutter head seat. Each cutter structure includes a milling cutter block and a milling cutter groove for mounting the milling cutter block. The milling cutter groove is connected to a wedge groove, and a wedge block for fixing the milling cutter block is installed in the wedge groove.

[0007] The cross-section of the milling cutter block is an equal polygon. Multiple milling cutter surfaces are formed around the outer circumference of the milling cutter block. The included angle between two adjacent milling cutter surfaces is the same. Multiple positioning surfaces that cooperate with the milling cutter block are formed on the inner wall of the milling cutter groove. The included angle between two adjacent positioning surfaces is the same as the included angle between two adjacent milling cutter surfaces.

[0008] Furthermore: the cross-section of the milling cutter block is an equal heptagon.

[0009] Furthermore, the inner wall of the milling cutter groove is formed with three positioning surfaces that mate with the milling cutter block.

[0010] Furthermore, the wedge block has an inclined surface formed on the side near the milling cutter block that contacts the side end face of the milling cutter block.

[0011] Furthermore: the wedge-shaped block is formed through an external connecting hole, and the wedge-shaped groove is formed with an internal connecting hole that is coaxially fitted with the external connecting hole. A locking bolt is provided between the external connecting hole and the internal connecting hole.

[0012] Furthermore: the positioning surface is provided with a positioning block that elastically contacts the milling cutter surface of the milling cutter block.

[0013] Furthermore: the positioning surface is formed with a concave positioning groove, the positioning block is installed in the positioning groove, and the positioning block can be elastically popped out from the positioning groove.

[0014] Furthermore, the end face of the positioning block facing the milling cutter block is provided with abrasive particles for polishing.

[0015] Furthermore: the positioning groove is provided with an inner elastic hole, and a compression spring is installed in the inner elastic hole. The outer end of the compression spring is connected to the back of the positioning block.

[0016] The beneficial effects of this utility model are as follows: During installation, the milling cutter block is embedded into the milling cutter groove, and then the wedge block and the wedge groove cooperate to achieve the clamping installation of the milling cutter block, preventing the risk of falling off during milling; in addition, when one of the milling cutter faces of the milling cutter block is worn too much and needs to be replaced, the milling cutter block can be removed and rotated to expose the other unused milling cutter face downwards for milling, without the need to replace the new milling cutter block, and the original milling cutter block can continue to be used, reducing the cost of use.

[0017] During installation, since the included angle between two adjacent milling cutter faces is the same, the milling cutter groove is also designed with multiple corresponding positioning surfaces to cooperate with multiple milling cutter faces, increasing the contact area and facilitating better positioning and installation of the milling cutter block, thus preventing the milling cutter block from shifting during milling. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the face milling cutter disc.

[0019] Figure 2 This is a schematic diagram of the face milling cutter head from another perspective.

[0020] Figure 3 This is an enlarged schematic diagram of the milling cutter groove.

[0021] The reference numerals in the figures include:

[0022] 1-Tool body,

[0023] 10-Tool structure, 11-Tool holder, 12-Milling cutter groove, 13-Wedge groove, 14-Milling cutter block,

[0024] 15-End mill face, 16-Wedge block, 17-Inner connecting hole, 18-Outer connecting hole, 19-Locking bolt

[0025] 2-Positioning surface

[0026] 21-Positioning block, 22-Positioning groove, 23-Inner elastic hole, 24-Compression spring, 25-Ceiling surface,

[0027] 26 - Frosted particles. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings.

[0029] like Figure 1-3 As shown, a face milling cutter with a wedge-shaped block fixed insert structure includes a cutter body 1. A cutter head seat 11 is formed at the bottom of the cutter body 1. Multiple cutter structures 10 are arranged in a ring at equal intervals at the bottom of the cutter head seat 11. Each cutter structure 10 includes a milling cutter block 14 and a milling cutter groove 12 for mounting the milling cutter block 14. The milling cutter groove 12 is connected to a wedge-shaped groove 13. A wedge-shaped block 16 for fixing the milling cutter block 14 is mounted in the wedge groove 13. The cross-section of the milling cutter block 14 is an equal polygon. Multiple milling cutter faces 15 are formed around the outer circumference of the milling cutter block 14. The included angle between two adjacent milling cutter faces 15 is the same. Multiple positioning surfaces 2 that cooperate with the milling cutter block 14 are formed on the inner wall of the milling cutter groove 12. The included angle between two adjacent positioning surfaces 2 is the same as the included angle between two adjacent milling cutter faces 15.

[0030] During installation, the milling cutter block 14 is embedded into the milling cutter groove 12. Then, the wedge block 16 and the wedge groove 13 cooperate to press the milling cutter block 14 into place, preventing the risk of it falling off during milling. In addition, when one of the milling cutter faces 15 of the milling cutter block 14 is worn and needs to be replaced, the milling cutter block 14 can be removed and rotated to expose the other unused milling cutter face 15 for milling. There is no need to replace the milling cutter block 14 with a new one, and the original milling cutter block 14 can continue to be used, reducing the cost of use.

[0031] During installation, since the included angle between two adjacent milling cutter surfaces 15 is the same, the milling cutter groove 12 is also designed with multiple corresponding positioning surfaces 2 to cooperate with multiple milling cutter surfaces 15, increasing the contact area and facilitating better positioning and installation of the milling cutter block 14, preventing the milling cutter block 14 from shifting during milling.

[0032] Preferably, the cross-section of the milling cutter block 14 is an equal hexagon or equal heptagon; using more than five milling cutter faces 15, the entire milling cutter block 14 can be recycled more than five times, which greatly reduces replacement costs and consumable expenses.

[0033] Preferably, the cross-section of the milling cutter block 14 is an equal heptagon, and the inner wall of the milling cutter groove 12 is formed with three positioning surfaces 2 that cooperate with the milling cutter block 14; in this embodiment, when the milling cutter block 14 is installed, three adjacent milling cutter surfaces 15 are in contact with the positioning surfaces 2 of the milling cutter groove 12 to achieve positioning, while the other four adjacent milling cutter surfaces 15 are exposed outward.

[0034] Specifically, the wedge block 16 has a bevel 25 formed on the side near the milling cutter block 14, which contacts the side end face of the milling cutter block 14. The wedge block 16 moves into the wedge groove 13, and with the cooperation of the bevel 25, the milling cutter block 14 can be pressed into the milling cutter groove 12, thus installing and fixing the milling cutter block 14. The wedge block 16 has an external connecting hole 18 formed through it, and the wedge groove 13 has an internal connecting hole 17 that is coaxially fitted with the external connecting hole 18. A locking bolt 19 is provided between the external connecting hole 18 and the internal connecting hole 17. During installation, the locking bolt 19 can be tightened by turning the knob. Through the cooperation of the internal connecting hole 17 and the external connecting hole 18, the wedge block 16 can move in and out of the wedge groove 13, thereby realizing the installation, fixing or disassembly of the milling cutter block 14.

[0035] The positioning surface 2 is provided with a positioning block 21 that elastically contacts the milling cutter surface 15 of the milling cutter block 14; after the milling cutter block 14 is installed in place, the positioning block 21 located on the positioning surface 2 will fit against the milling cutter surface 15 of the milling cutter block 14, so that multiple milling cutter surfaces 15 are positioned twice, further improving the stability of the installation. During milling, the milling cutter block 14 is not easy to fall off or loosen.

[0036] Preferably, the positioning surface 2 is formed with a concave positioning groove 22, and the positioning block 21 is installed in the positioning groove 22. The positioning block 21 can elastically pop out from the positioning groove 22. The end face of the positioning block 21 facing the milling cutter block 14 is provided with abrasive particles 26 for polishing. The positioning groove 22 is provided with an inner elastic hole 23, and a compression spring 24 is installed in the inner elastic hole 23. The outer end of the compression spring 24 is connected to the back of the positioning block 21. After the milling cutter block 14 is installed in place, the positioning block 21 located in the positioning groove 22 will pop outward under the elastic drive of the compression spring 24, so that the end face with abrasive particles 26 will contact the milling cutter surface 15. During milling, vibration will be generated, so the milling cutter surface 15 will rub against the end face of the abrasive particles 26, thereby polishing the milling cutter surface 15, which is convenient for subsequent milling and improves the accuracy and quality of milling.

[0037] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0038] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A face milling cutter head with a wedge-shaped block fixed insert structure, comprising a cutter body, a cutter head seat formed at the bottom of the cutter body, and a plurality of cutter structures arranged in a ring at equal intervals at the bottom of the cutter head seat, characterized in that: The tool structure includes a milling cutter block and a milling cutter groove for mounting the milling cutter block. The milling cutter groove is connected to a wedge-shaped groove, and a wedge-shaped block for fixing the milling cutter block is mounted in the wedge-shaped groove. The cross-section of the milling cutter block is an equal polygon. Multiple milling cutter surfaces are formed around the outer circumference of the milling cutter block. The included angle between two adjacent milling cutter surfaces is the same. Multiple positioning surfaces that cooperate with the milling cutter block are formed on the inner wall of the milling cutter groove. The included angle between two adjacent positioning surfaces is the same as the included angle between two adjacent milling cutter surfaces.

2. The face milling cutter head with a wedge-shaped block fixed insert structure according to claim 1, characterized in that: The cross-section of the milling cutter block is an equal heptagon.

3. A face milling cutter disc with a wedge-shaped block fixed insert structure according to claim 2, characterized in that: The inner wall of the milling cutter groove is formed with three positioning surfaces that cooperate with the milling cutter block.

4. A face milling cutter head with a wedge-shaped block fixed insert structure according to claim 3, characterized in that: The wedge block has an inclined surface formed on the side near the milling cutter block that contacts the side end face of the milling cutter block.

5. A face milling cutter head with a wedge-shaped block fixed insert structure according to claim 4, characterized in that: The wedge-shaped block is formed through an external connecting hole, and the wedge-shaped groove is formed with an internal connecting hole that is coaxially fitted with the external connecting hole. A locking bolt is provided between the external connecting hole and the internal connecting hole.

6. A face milling cutter head with a wedge-shaped block fixed insert structure according to claim 5, characterized in that: The positioning surface is provided with a positioning block that elastically contacts the milling cutter surface of the milling cutter block.

7. A face milling cutter disc with a wedge-shaped block fixed insert structure according to claim 6, characterized in that: The positioning surface is formed with a concave positioning groove, the positioning block is installed in the positioning groove, and the positioning block can be elastically popped out from the positioning groove.

8. A face milling cutter disc with a wedge-shaped block fixed insert structure according to claim 7, characterized in that: The positioning block has abrasive particles for polishing on its end face facing the milling cutter block.

9. A face milling cutter disc with a wedge-shaped block fixed insert structure according to claim 8, characterized in that: The positioning groove is provided with an inner elastic hole, and a compression spring is installed in the inner elastic hole. The outer end of the compression spring is connected to the back of the positioning block.

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