Combined T-shaped cutter

Abstract

The utility model belongs to the technical field of T-shaped knives, and particularly relates to a combined T-shaped knife, which aims at solving the problem that a single knife edge cannot be replaced when the knife edge is damaged, and adopts the following scheme that the combined T-shaped knife comprises a knife holder, and four groups of knife edge assembling components are arranged on the annular end surface of the knife holder; and the cutting edge assembling assembly comprises four cutting edge assembling grooves formed in the annular end face of the tool apron, cutting edges are detachably installed in the cutting edge assembling grooves, second bolt holes matched with each other are formed in the cutting edges and the tool apron, and second assembling bolts are installed in the second bolt holes in a threaded mode. Due to the design that the cutting edge and the tool apron can be detached, assembled and replaced through the second bolt hole and the second assembly bolt, and the cutting edge and the tool apron can be detached and replaced, when the cutting edge is abraded or damaged, only the cutting edge needs to be replaced, the service life of the tool apron is greatly prolonged, and the overall use cost is reduced.

Description

Technical Field

[0001] This utility model relates to a T-shaped knife, specifically a combined T-shaped knife, and belongs to the technical field of T-shaped knives. Background Technology

[0002] A T-slot cutter is a common cutting tool used in milling operations. Also known as a T-slot milling cutter, half-circle milling cutter, or keyway milling cutter, it is a tool mounted on a milling machine for milling T-shaped grooves and side grooves on workpieces. Besides T-shaped grooves, T-slot cutters can also be used to machine side grooves, which may be used for specific assembly requirements, lubrication channels, or other functions. Due to its special shape and design, a T-slot cutter can complete the machining of multiple surfaces in a single cutting operation, thus improving machining efficiency. T-slot cutters are suitable for various machining methods, such as milling, side milling, and contour milling, making them more flexible and convenient for machining complex shapes and contours.

[0003] In existing technology, such as the combined T-shaped knife with announcement number 201922358935.8, a combination T-shaped knife includes a handle, a fastening cap, a retaining ring, a mating screw hole, a first threaded post, a retaining groove, a fixing post, a retaining block, a connecting hole, a cutting edge, and a second threaded post. The connecting hole is located at the top of the fixing post, and the cutting edge is fixedly connected to the top of the fixing post. The second threaded post is vertically fixed at the bottom center of the cutting edge. The included angle of the two sides of the fastening cap is 60 degrees, which meets the angle requirements of the T-shaped knife. The diameter of the retaining ring is larger than that of the fixing post and smaller than that of the mating screw hole, making it easy for the retaining ring to pass through the fixing post. The fixing post is clamped in the retaining groove by the retaining block and mates with the first threaded post to prevent misalignment, thereby achieving precise mating. The fixing post is screwed to the first threaded post by the fastening cap and fixed by the retaining ring pressing the retaining block to ensure that the fixing post is firmly fixed. The cutting edge is screwed and locked to the connecting hole by the second threaded post.

[0004] In the above technical solution, the connecting hole is located at the top of the fixed post, the blade is fixedly connected to the top of the fixed post, and the second threaded post is vertically fixed at the bottom center of the blade. However, in actual use, most of the damage to the T-shaped knife is to the blade. In the above solution, when the blade is damaged, it is impossible to replace a single blade. Therefore, a combined T-shaped knife is provided to overcome the above defects. Utility Model Content

[0005] This utility model addresses the problem in the above-mentioned technical solutions where the connecting hole is located at the top of the fixed post, the blade is fixedly connected to the top of the fixed post, and the second threaded post is vertically fixed at the bottom center of the blade. However, in actual use, most of the damage to the T-shaped knife is to the blade itself, and the above solutions cannot replace a single blade when it is damaged. Therefore, this utility model provides a combined T-shaped knife.

[0006] The present invention achieves the above objectives through the following technical solution: a combined T-shaped knife, including a knife holder, wherein four sets of blade assembly components are provided on the annular end face of the knife holder;

[0007] The blade assembly includes four blade mounting slots on the annular end face of the blade holder. Blades are detachably installed inside the blade mounting slots. The blades and the blade holder have matching second bolt holes inside them. Second mounting bolts are installed in the internal threads of the second bolt holes.

[0008] As a further embodiment of this utility model: the blade assembly assembly further includes a positioning block that can be detachably installed inside the blade assembly groove, and the positioning block, the blade and the blade holder are provided with matching first bolt holes inside.

[0009] As a further embodiment of this utility model: a first assembly bolt is installed in the internal thread of the first bolt hole, and the positioning block, the cutting edge and the tool holder are detachably installed through the first bolt hole, the first assembly bolt and the tool holder.

[0010] As a further improvement of this utility model: the tool holder has a insertion hole in the middle, and the top surface of the tool holder has an assembly cavity that communicates with the insertion hole.

[0011] As a further improvement of this utility model: a bolt head is inserted into the insertion hole and the interior of the assembly cavity, and a locking cap is threaded onto the top of the bolt head.

[0012] As a further improvement of this utility model, an assembly tool holder is fixedly installed at the bottom end of the bolt head.

[0013] As a further embodiment of this utility model: a snap-fit ​​block is fixedly installed at the connection between the assembly tool bar and the bolt head, and a snap-fit ​​groove is opened on the end face of the tool holder away from the assembly cavity. The assembly tool bar is snapped with the tool holder through the snap-fit ​​block and the snap-fit ​​groove.

[0014] The beneficial effects of this utility model are as follows: the cutting edge can be disassembled and replaced with the tool holder through the second bolt hole and the second mounting bolt. The design of the cutting edge and the tool holder being detachable and replaceable means that when the cutting edge is worn or damaged, only the cutting edge needs to be replaced, which greatly extends the service life of the tool holder and reduces the overall operating cost. The detachable and replaceable cutting edge and tool holder allows for the selection of appropriate materials and models of cutting edges according to specific processing requirements, improving the adaptability and durability of the tool. The detachable design of the cutting edge and the tool holder facilitates the maintenance and upkeep of the tool, allowing for separate inspection, cleaning, and lubrication of the cutting edge and the tool holder, thus improving maintenance efficiency and effectiveness.

[0015] The positioning block can be installed on the tool holder through a bolt hole and the first mounting bolt. This positioning block can fix the blade to be installed, thus ensuring the stability of the blade during installation and the convenience of installation positioning. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the tool holder connection of this utility model;

[0018] Figure 3 This is a schematic diagram of the back structure of the tool holder of this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting blade assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection between the blade holder and the blade of the connector of this utility model.

[0021] In the diagram: 1. Tool holder; 2. Tool blade assembly assembly; 201. Tool blade assembly groove; 202. Tool blade; 203. Positioning block; 204. First assembly bolt; 205. Second assembly bolt; 206. First bolt hole; 207. Second bolt hole; 3. Assembly tool holder; 4. Assembly cavity; 5. Locking cap; 6. Bolt head; 7. Snap-fit ​​block; 8. Insertion hole; 9. Snap-fit ​​groove. 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. Example 1

[0023] like Figures 1 to 5 As shown, a combined T-shaped knife includes a knife holder 1, and four sets of blade assembly components 2 are provided on the annular end face of the knife holder 1.

[0024] The blade assembly 2 includes four blade assembly slots 201 formed on the annular end face of the blade holder 1. Blades 202 are detachably installed inside the blade assembly slots 201. The blades 202 and the blade holder 1 have matching second bolt holes 207. Second assembly bolts 205 are threaded into the second bolt holes 207. The blade assembly 2 also includes a positioning block 203 detachably installed inside the blade assembly slots 201. The positioning block 203, the blades 202 and the blade holder 1 have matching first bolt holes 206. First assembly bolts 204 are threaded into the first bolt holes 206. The positioning block 203, the blades 202 and the blade holder 1 are detachably installed through the first bolt holes 206 and the first assembly bolts 204. The cutting edge 202 can be disassembled and replaced with the tool holder 1 via the second bolt hole 207 and the second mounting bolt 205. This detachable design allows for easy replacement of the cutting edge 202 when it wears or is damaged, significantly extending the service life of the tool holder 1 and reducing overall operating costs. The detachable design also allows for selection of appropriate materials and models of the cutting edge 202 based on specific machining requirements, improving the tool's adaptability and durability. Furthermore, the detachable design facilitates tool maintenance, enabling separate inspection, cleaning, and lubrication of both the cutting edge 202 and the tool holder 1, improving maintenance efficiency and effectiveness. Simultaneously, the positioning block 203 can be installed on the tool holder 1 via the first bolt hole 206 and the first mounting bolt 204. This positioning block 203 effectively positions and fixes the cutting edge 202, ensuring stability and ease of installation. Example 2

[0025] In addition to all the technical features in Embodiment 1, this embodiment also includes: a insertion hole 8 is provided in the middle of the tool holder 1; an assembly cavity 4 communicating with the insertion hole 8 is provided on the top surface of the tool holder 1; a bolt head 6 is inserted into the insertion hole 8 and the assembly cavity 4; a locking cap 5 is threaded onto the top of the bolt head 6; an assembly tool rod 3 is fixedly installed at the bottom of the bolt head 6; a snap-fit ​​block 7 is fixedly installed at the connection between the assembly tool rod 3 and the bolt head 6; a snap-fit ​​groove 9 is provided on the side of the tool holder 1 facing away from the assembly cavity 4; and the assembly tool rod 3 is snapped into the tool holder 1 through the snap-fit ​​block 7 and the snap-fit ​​groove 9. When installing the tool holder 1 and the assembly tool shank 3, unscrew the locking cap 5 on the top bolt head 6 of the assembly tool shank 3. Then, insert the top of the assembly tool shank 3 into the snap-fit ​​groove 9, the insertion hole 8 and the assembly cavity 4 of the tool holder 1 in sequence. After insertion, the snap-fit ​​block 7 can be snapped into the snap-fit ​​groove 9. When fully inserted, the locking cap 5 can be screwed back onto the bolt head 6. This will fix the assembly tool shank 3 to the tool holder 1 through the locking cap 5, thus completing the connection between the tool holder 1 and the assembly tool shank 3.

[0026] Working principle: Before using this combined T-shaped cutter, when installing the cutter holder 1 and the assembly cutter shank 3, unscrew the locking cap 5 on the top bolt head 6 of the assembly cutter shank 3. Then, insert the top of the assembly cutter shank 3 into the snap-fit ​​groove 9, the insertion hole 8, and the assembly cavity 4 of the cutter holder 1 in sequence. After insertion, the snap-fit ​​block 7 can be snapped into the snap-fit ​​groove 9. When fully inserted, the locking cap 5 can be screwed back onto the bolt head 6. This fixes the assembly cutter shank 3 to the cutter holder 1 through the locking cap 5, thus completing the connection between the cutter holder 1 and the assembly cutter shank 3. The blade 202 can be disassembled and replaced with the cutter holder 1 through the second bolt hole 207 and the second assembly bolt 205. At the same time, the positioning block 203 can be installed on the cutter holder 1 through the first bolt hole 206 and the first assembly bolt 204. This positioning block 203 can fix the blade 202 to be installed, thus ensuring the stability of the blade 202 during installation and the convenience of installation positioning.

[0027] 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.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combined T-shaped cutter, comprising a cutter holder (1), characterized in that: Four sets of blade assembly components (2) are provided on the annular end face of the blade holder (1). The blade assembly assembly (2) includes four blade assembly slots (201) on the annular end face of the blade holder (1). Blades (202) are detachably installed inside the blade assembly slots (201). The blades (202) and the blade holder (1) are provided with matching second bolt holes (207). Second assembly bolts (205) are installed in the internal threads of the second bolt holes (207).

2. The combined T-shaped blade according to claim 1, characterized in that: The blade assembly assembly (2) also includes a positioning block (203) that can be detachably installed inside the blade assembly slot (201). The positioning block (203), the blade (202) and the blade holder (1) are provided with matching first bolt holes (206).

3. A combined T-shaped blade according to claim 2, characterized in that: The first bolt hole (206) is threaded with a first assembly bolt (204), and the positioning block (203) and the blade (202) are detachably installed between the first bolt hole (206), the first assembly bolt (204) and the tool holder (1).

4. A combined T-shaped blade according to claim 1, characterized in that: The tool holder (1) has a insertion hole (8) in the middle interior, and the top surface of the tool holder (1) has an assembly cavity (4) that communicates with the insertion hole (8).

5. A combined T-shaped blade according to claim 4, characterized in that: The insertion hole (8) is connected to the interior of the assembly cavity (4) with a bolt head (6), and a locking cap (5) is threaded onto the top of the bolt head (6).

6. A combined T-shaped blade according to claim 5, characterized in that: The bottom end of the bolt head (6) is fixedly installed with an assembly tool bar (3).

7. A combined T-shaped blade according to claim 6, characterized in that: A snap-fit ​​block (7) is fixedly installed at the connection between the assembly tool bar (3) and the bolt head (6). A snap-fit ​​groove (9) is opened on the end face of the tool holder (1) away from the assembly cavity (4). The assembly tool bar (3) is snapped with the tool holder (1) through the snap-fit ​​block (7) and the snap-fit ​​groove (9).

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