Cutting tool for special-shaped anti-dazzling screen

Abstract

The utility model discloses a cutting tool for a special-shaped anti-dazzling screen, which comprises a cylindrical tool handle and more than one tool bit, and the front end of the cylindrical tool handle is detachably connected with one tool bit. The front end of the tool bit is provided with a special-shaped cutting die blade used for machining an outer ring of the special-shaped anti-dazzling screen and a special-shaped corrugated cutting die blade used for machining an inner hole of the special-shaped anti-dazzling screen, and the special-shaped corrugated cutting die blade is located on the periphery of the special-shaped cutting die blade and is concentric with the special-shaped cutting die blade. When the cutter is installed on an upper die base of a stamping die, the special-shaped anti-dazzling screen is stamped and cut at a time along with downward movement of the upper die base, so that the working efficiency is improved, multiple sets of dies do not need to be arranged, the equipment cost is further reduced, and disassembly is convenient in the later period; and the special-shaped corrugated cutting die blade and the special-shaped cutting die blade are integrally formed, so that the consistency of the centrality can be finally ensured, and the problem that the qualification rate of finished products is influenced due to inconsistent centrality of the two dies at the final stamping cost is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of cutting tools, specifically a cutting tool for an irregularly shaped light-shielding sheet. Background Technology

[0002] like Figure 1 The irregularly shaped light-shielding sheet 1 (also known as a spacer ring) shown is difficult to process. The current method is to set two concentric and interlocking stamping upper die cores. The bottom of the outer stamping upper die core is used to stamp and form the outer contour of the irregularly shaped light-shielding sheet 1, and the inner stamping upper die core is used to stamp and form the inner irregular hole of the irregularly shaped light-shielding sheet 1. However, when using this structure, the two stamping upper die cores must be set concentrically during the processing. If there is a slight deviation, the following problems will easily occur: 1. First, there will be a deviation in the installation, which requires adjustment later; 2. The stamping position of the inner irregular hole will be offset, which will ultimately make the cost unacceptable. Moreover, the current stamping upper die can only stamp one size. Therefore, in order to ensure that products of different sizes can be stamped, multiple sets of stamping upper die sets are required, which leads to high equipment costs. In addition, it is relatively inconvenient to disassemble the upper die set from the upper die lifting mechanism. Therefore, an improvement is needed. Utility Model Content

[0003] The purpose of this utility model is to provide a cutting tool for irregularly shaped light-shielding sheets, so as to solve the problems mentioned in the background art, such as high equipment cost and inconvenient disassembly in the processing of existing irregularly shaped light-shielding sheets.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cutting tool for irregularly shaped light-shielding sheets, comprising a cylindrical tool holder and one or more cutting heads, wherein the front end of the cylindrical tool holder is detachably connected to one of the cutting heads, and the front end of the cutting head is provided with an irregularly shaped die-cutting edge for processing the outer ring of the irregularly shaped light-shielding sheet and an irregularly shaped corrugated die-cutting edge for processing the inner hole of the irregularly shaped light-shielding sheet, wherein the irregularly shaped corrugated die-cutting edge is located on the outer periphery of the irregularly shaped die-cutting edge and is concentrically arranged with the irregularly shaped die-cutting edge.

[0005] Preferably, for ease of disassembly, each cutter head has a rising column on its back. The front end of the cylindrical cutter handle has a mounting groove, and the rising column is inserted into the mounting groove. Set screws are symmetrically arranged on both sides of the cylindrical cutter handle and threadedly connected to the rising column after the cylindrical cutter handle is inserted.

[0006] Preferably, in order to improve the fixing effect and prevent the cutting head from separating from the cylindrical handle after the screws loosen, thus affecting the cutting effect, a magnet is provided on both sides of the mounting groove relative to the rising column, and a metal plate that cooperates with the magnet is provided on the back of the cutting head.

[0007] Preferably, in order to serve as a guide during installation, the front end of the cylindrical tool holder is provided with a positioning hole, and the back of each tool head is provided with a positioning rod that mates with the positioning hole.

[0008] Preferably, in order to fix the device on the stamping die, a positioning groove is provided at the end of the cylindrical tool holder away from the tool head, and an internal thread is provided in the positioning groove.

[0009] Preferably, the irregular corrugated die has a triangular blade tip, and the clamp formed by the two sides of the irregular corrugated die has a 48° angle.

[0010] Preferably, the cutting edge of the irregular-shaped die is a triangular cutting edge, and the clamp formed by the two sides of the cutting edge is 42°.

[0011] Compared with the prior art, the beneficial effects of this utility model are: when this tool is installed on the upper die holder of the stamping die, it can stamp and cut the irregular light-shielding sheet in one go as the upper die holder moves down, thereby improving work efficiency. Moreover, it eliminates the need to set up multiple sets of dies, further reducing equipment costs. It is also easy to disassemble later. Furthermore, the irregular corrugated die blade and the irregular die blade are integrally formed, which can ensure that the center degree is consistent. Finally, the stamping cost will not be affected by the problem of the finished product qualification rate due to the inconsistency of the center degree of the two dies. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the existing irregularly shaped light-shielding sheet disclosed in Example 1;

[0013] Figure 2 This is a schematic diagram of the connection structure between a cutting head and a cylindrical cutting shank disclosed in Example 1;

[0014] Figure 3 for Figure 2 Enlarged view of point B;

[0015] Figure 4 This is a front view of a tool head and a cylindrical tool holder combined as disclosed in Example 1;

[0016] Figure 5 for Figure 4 Sectional view of AA;

[0017] Figure 6 This is a schematic diagram of the structure of another cutting head disclosed in Example 1;

[0018] Figure 7 This is a schematic diagram of the structure of another cutting head disclosed in Example 1;

[0019] Figure 8 This is a cross-sectional view of a cutting head and a cylindrical tool holder combined as disclosed in Example 2;

[0020] Figure 9 This is a cross-sectional view of a cutting head and a cylindrical tool holder combined as disclosed in Example 3;

[0021] Figure 10 This is a cross-sectional view of a cutting head and a cylindrical tool holder combined as disclosed in Example 4.

[0022] In the figure: 1. Irregular light shield; 2. Cutting head; 3. Irregular die cutting edge; 4. Irregular corrugated die cutting edge; 5. Cylindrical handle; 6. Lifting column; 7. Mounting groove; 8. Set screw; 9. Magnet; 10. Metal sheet; 11. Positioning hole; 12. Positioning rod; 13. Positioning groove; 14. Internal thread. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1:

[0025] Please see Figures 2-7 This embodiment discloses a cutting tool for a non-circular light-shielding sheet, including a cylindrical handle 5 and one or more cutting heads 2. The front end of the cylindrical handle 5 is detachably connected to one of the cutting heads 2. The front end of the cutting head 2 is provided with a non-circular cutting die edge 3 for processing the outer ring of the non-circular light-shielding sheet and a non-circular corrugated cutting die edge 4 for processing the inner hole of the non-circular light-shielding sheet. The non-circular corrugated cutting die edge 4 is located on the outer periphery of the non-circular cutting die edge 3 and is concentrically arranged with the non-circular cutting die edge 3. In this embodiment, a positioning groove 13 is provided at the end of the cylindrical handle 5 away from the cutting head 2.

[0026] Preferably, for ease of disassembly, each cutter head 2 has a rising column 6 on its back. The front end of the cylindrical cutter handle 5 has a mounting groove 7. The rising column 6 is inserted into the mounting groove 7. Set screws 8 are symmetrically arranged on both sides of the cylindrical cutter handle 5 and threadedly connected to the rising column 6 after being inserted into the cylindrical cutter handle 5. The installation method of this structure is as follows: First, select a suitable cutter head 2, insert the rising column 6 into the mounting groove 7, and then quickly pass the set screw 8 through the through hole on the cylindrical cutter handle 5 and thread it into the threaded hole on the rising column 6 to quickly lock the cutter head 2 onto the cylindrical cutter handle 5, which facilitates disassembly later.

[0027] Preferably, the irregular corrugated die blade 4 has a triangular blade peak, and the clamping angle formed by the two sides of the irregular corrugated die blade 4 is 48°.

[0028] Preferably, the irregular-shaped die-cutting edge 3 is a triangular edge, and the clamp formed by the two sides of the irregular-shaped die-cutting edge 3 is 42°.

[0029] In this embodiment, the irregular corrugated die cutting edge 4 and irregular die cutting edge 3 at the front end of the cutter head 2 are processed in the following way: after normal NC milling, the NC machine tool replaces the milling cutter with a precision grinding rod and grinding head for grinding. This ensures that the cutting edges of the irregular corrugated die cutting edge 4 and irregular die cutting edge 3 are sharp and without nicks, while improving the accuracy of the die. Ultimately, the accuracy is controlled within 1μm. Finally, it ensures that the irregular corrugated die cutting edge 4 and irregular die cutting edge 3 move down with the upper die. After the cutting edge stamping completes the product processing, the product is smooth inside and out without burrs, further improving the smoothness of the irregular light shield 1. Moreover, the irregular corrugated die cutting edge 4 and irregular die cutting edge 3 work simultaneously to form the irregular light shield 1 in one go, further improving work efficiency.

[0030] This structure features several cutting heads 2, each with different sizes of irregularly shaped corrugated die-cutting edges 4 and 3. The cutting heads 2 are detachably connected to the cylindrical handle 5, allowing for easy selection of the appropriate cutting head 2 to cut different sizes of the irregularly shaped light-shielding sheets 1. Furthermore, the irregularly shaped corrugated die-cutting edges 4 and 3 are integrally formed on the cutting head 2, enabling the irregularly shaped light-shielding sheets 1 to be stamped and cut in one go as the upper die base moves down when the cutting tool is installed on it. This improves work efficiency, eliminates the need for multiple sets of dies, further reducing equipment costs, and facilitates disassembly. The integral forming of the irregularly shaped corrugated die-cutting edges 4 and 3 ensures consistent centering, preventing issues with the finished product yield due to inconsistent centering between the two dies.

[0031] Example 2:

[0032] Please see Figure 8 The general structure of the cutting tool for the irregularly shaped light-shielding sheet disclosed in this embodiment is the same as that in Embodiment 1. The difference is that, as a preferred embodiment, in order to improve the fixing effect and avoid the cutting effect from the separation of the cutting head and the cylindrical handle after the screw loosens, a magnet 9 is provided on both sides of the mounting groove 7 relative to the rising column 6. A metal sheet 10 that cooperates with the magnet 9 is provided on the back of the cutting head 2. In this embodiment, by setting the magnet 9 and the metal sheet 10 to cooperate, the fixing groove is further improved, and the cutting effect is avoided from the separation of the cutting head 2 and the cylindrical handle 5 after the set screw 8 loosens.

[0033] Example 3:

[0034] Please see Figure 9The general structure of the cutting tool for the irregularly shaped light-shielding sheet disclosed in this embodiment is the same as that in Embodiment 1. The difference is that, preferably, in order to play a guiding role in installation, the front end of the cylindrical handle 5 is also provided with a positioning hole 11, and the back of each cutter head 2 is also provided with a positioning rod 12 that cooperates with the positioning hole 11. In this embodiment, by providing a positioning hole 11 at the front end of the cylindrical handle 5 and a positioning rod 12 at the corresponding position of the cutter head 2, when the positioning rod 12 is inserted into the positioning hole 11, it is ensured that the through hole on the cylindrical handle 5 for inserting the set screw 8 is aligned with the threaded hole on the rising column 6 for threaded connection with the set screw 8. This makes it convenient for the user to assemble. The set screw 8 can be quickly passed through the through hole on the cylindrical handle 5 and threadedly connected to the threaded hole on the rising column 6 to quickly lock the cutter head 2 onto the cylindrical handle 5. There will be no situation where the installation position is offset or misaligned, which will affect the installation of the set screw 8. The positioning rod 12 can also play a guiding role in installation.

[0035] Example 4:

[0036] Please see Figure 10 The general structure of the cutting tool for the irregular light-shielding sheet disclosed in this embodiment is the same as that in embodiment 1. The difference is that, preferably, in order to fix the device on the stamping die, an internal thread 14 is provided in the positioning groove 13. In this embodiment, the internal thread 14 is provided in the positioning groove 13. When the device is installed on the upper die of the stamping die later, the installation can be achieved by connecting the internal thread 14 with the corresponding external thread of the upper die of the stamping die.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cutting tool for an irregularly shaped light-shielding sheet, comprising a cylindrical tool holder (5), characterized in that, It also includes one or more cutting heads (2), and the front end of the cylindrical tool holder (5) is detachably connected to one of the cutting heads (2). The front end of the cutting head (2) is provided with a shaped cutting die edge (3) for processing the outer ring of the shaped light shield and a shaped corrugated cutting die edge (4) for processing the inner hole of the shaped light shield. The shaped corrugated cutting die edge (4) is located on the outer periphery of the shaped cutting die edge (3) and is concentrically arranged with the shaped cutting die edge (3).

2. The cutting tool for cutting a profiled shade according to claim 1, characterized in that, Each cutter head (2) has a rising column (6) on its back side. The front end of the cylindrical cutter handle (5) is provided with a mounting groove (7). The rising column (6) is inserted into the mounting groove (7). Set screws (8) are symmetrically arranged on both sides of the cylindrical cutter handle (5) and threadedly connected to the rising column (6) after being inserted into the cylindrical cutter handle (5).

3. The cutting tool for cutting a profiled shade according to claim 2, characterized in that, A magnet (9) is provided on both sides of the mounting groove (7) relative to the lifting column (6), and a metal sheet (10) that cooperates with the magnet (9) is provided on the back of the cutter head (2).

4. A cutting tool for cutting a profiled shade according to claim 2 or 3, characterized in that, The cylindrical tool holder (5) is also provided with a positioning hole (11) at the front end, and each tool head (2) is also provided with a positioning rod (12) that cooperates with the positioning hole (11) on the back.

5. The cutting tool for cutting a shaped shade according to claim 1 or 2 or 3, wherein The cylindrical tool holder (5) is provided with a positioning groove (13) at one end away from the tool head (2), and an internal thread (14) is provided in the positioning groove (13).

6. The cutting tool for cutting a shaped shade according to claim 1 or 2 or 3, wherein The irregular corrugated die cutter edge (4) is a triangular blade peak, and the clamp formed by the two sides of the irregular corrugated die cutter edge (4) is 48°.

7. The cutting tool for cutting a shaped shade according to claim 1 or 2 or 3, wherein The irregular die-cutting edge (3) is a triangular edge, and the clamp formed by the two sides of the irregular die-cutting edge (3) is 42°.

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