Quick-change reamer with adjustable size

Abstract

The utility model relates to the technical field of reamers, and discloses a size-adjustable quick-change reamer which comprises a reamer handle structure and a reamer head structure installed at the lower end of the reamer handle structure, the reamer head structure comprises a reamer rod, a plurality of reamer tooth assemblies are evenly installed on the outer side of the reamer rod, and the reamer tooth assemblies are connected with the reamer handle structure. Diamond particles are sprayed on the outer surface of each cutter tooth assembly. The tool bit structure can be mounted on the tool holder structure through the spring column and the second spring, so that tool bit structures with different sizes can be mounted; the reamer handle structure can be installed on a machine tool through the button, the first spring, the swing rod, the rotating shaft and the clamping head, and therefore the reamer can be rapidly replaced. Screws are sequentially embedded into the mounting holes, the fastening holes and the threaded holes, the base plate, the cutter tooth assemblies and the cutter bar can be fixedly connected together, then each cutter tooth assembly can be detached, when a certain cutter tooth assembly is abraded too seriously, the cutter tooth assembly can be detached, a new cutter tooth assembly can be replaced, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reamers, in particular to a size-adjustable quick-change reamer. Background Art

[0002] A reamer has one or more teeth, and its main function is to perform cutting operations on metal materials to complete the processing of specific shapes of objects. Common shapes such as internal and external threads, countersunk heads, and planes can be processed using reamers. A reamer is a rotary finishing tool with a straight or spiral edge.

[0003] A Chinese patent discloses a reamer with a quickly replaceable cutter head (authorization announcement number CN219766961U). This patented technology fixes the reamer head to the top of the shank through a connecting pin. When the reamer is damaged, only the reamer head needs to be removed and replaced without replacing the shank. The replacement cost of the reamer head is low, but only the entire cutter head can be replaced, and contamination cannot be caused by replacing a single tooth, which leads to a high cost of use. Utility Model Content

[0004] The purpose of the present invention is to provide a size-adjustable quick-change reamer to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A quick-change reamer with adjustable size comprises a handle structure and a cutter head structure installed at the lower end of the handle structure, the cutter head structure comprises a tool rod, a plurality of tooth assemblies are evenly installed on the outer side of the tool rod, and a through second cooling hole is opened in the middle of the inner side of the tool rod, the outer surface of each of the tooth assemblies is sprayed with diamond particles, the upper end of the tool rod is located on the outer side of the second cooling hole and is embedded with a second sealing ring, and a group of spring columns are slidably connected to the upper ends of the front and rear sides of the tool rod, a second spring is installed between each of the spring columns and the tool rod, a chassis is installed at the lower end of the tool rod, a plurality of mounting holes are evenly opened on the chassis, a plurality of T-shaped slots are opened on the outer side wall of the tool rod, and a threaded hole is opened at the lower end of the inner side of each T-shaped slot.

[0007] As a further solution of the present invention: the blade tooth assembly includes a blade tooth, one side of the blade tooth is fixedly connected to a T-shaped slider, the lower end of the T-shaped slider is fixedly connected to a fastening plate, and a fastening hole is opened on the fastening plate.

[0008] As a further solution of the present invention: the T-shaped slide groove matches the T-shaped slider, the mounting hole, fastening hole and threaded hole correspond to each other, and the chassis, tooth assembly and cutter rod are embedded in the mounting hole, fastening hole and threaded hole in sequence by screws and fixedly connected.

[0009] As a further solution of the present invention: the handle structure includes a handle body, and the front and rear sides of the upper end of the handle body are slidably connected with a clamping head, one end of each of the clamping heads is located on the inner side of the handle body and is fixedly connected to a swing rod, one end of the swing rod is installed with a group of first springs, and a button is provided at the other end of the swing rod passing through the outside of the handle body, and the lower end of the swing rod is rotatably connected to the handle body through a rotating shaft.

[0010] As a further solution of the present invention: a groove matching the spring column is formed on the inner side wall of the lower end of the handle body, and the spring column is embedded in the corresponding groove.

[0011] As a further solution of the present invention: a first cooling hole connected to the second cooling hole is opened on the inner side of the handle body, and a first sealing ring is embedded and installed on the upper end of the handle body, which is located outside the first cooling hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model can install the cutter head structure on the cutter handle structure through the spring column and the second spring, thereby realizing the installation of cutter head structures of different sizes; the cutter handle structure can be installed on the machine tool through the button, the first spring, the swing rod, the rotating shaft and the clamping head, thereby realizing the rapid replacement of the reamer; the chassis, the cutter tooth assembly and the cutter rod can be fixedly connected together by screws being embedded in the mounting hole, the fastening hole and the threaded hole in sequence, thereby realizing that each cutter tooth assembly can be detachable. When a cutter tooth assembly is too severely worn, the cutter tooth assembly can be removed and replaced with a new one, thereby reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of a quick-change reamer with adjustable size;

[0015] Figure 2 The figure is a schematic diagram of the structure of a cutter head in a quick-change reamer with adjustable size;

[0016] Figure 3 The figure is a schematic diagram of an exploded top view of a cutter head structure in a size-adjustable quick-change reamer;

[0017] Figure 4 The figure is a schematic cross-sectional view of a spring column in a quick-change reamer with adjustable size;

[0018] Figure 5 The figure is a partial structural diagram of a tool bar in a quick-change reamer with adjustable size;

[0019] Figure 6 The figure is a partial structural diagram of a tooth assembly in a quick-change reamer with adjustable size;

[0020] Figure 7 The figure is a schematic diagram of the structure of a handle in a quick-change reamer with adjustable size;

[0021] Figure 8 The present invention is a schematic diagram of the partial cross-sectional structure of a handle body of a quick-change reamer with adjustable size.

[0022] In the figure: 1. Handle structure; 11. Handle body; 12. Button; 13. Chuck; 14. First sealing ring; 15. First cooling hole; 16. First spring; 17. Swing rod; 18. Rotating shaft; 2. Cutting head structure; 21. Cutting rod; 22. Second cooling hole; 23. Second sealing ring; 24. Spring column; 25. Tooth assembly; 251. Tooth; 252. T-shaped slider; 253. Fastening plate; 254. Fastening hole; 26. Diamond particles; 27. Chassis; 28. Mounting hole; 29. ​​Second spring; 210. Threaded hole; 211. T-shaped slide. DETAILED DESCRIPTION

[0023] See also Figures 1 to 7 In an embodiment of the present invention, a size-adjustable quick-change reamer includes a handle structure 1 and a cutter head structure 2 installed at the lower end of the handle structure 1.

[0024] exist Figures 2 to 5 In the embodiment, the cutter head structure 2 includes a cutter bar 21, a plurality of cutter tooth assemblies 25 are evenly installed on the outside of the cutter bar 21, and a through second cooling hole 22 is opened in the middle of the inner side of the cutter bar 21. The outer surface of each cutter tooth assembly 25 is sprayed with diamond particles 26. The diamond particles 26 increase the hardness of the surface of the cutter tooth assembly 25 and improve the service life of the cutter tooth assembly 25. The upper end of the cutter bar 21 is located on the outside of the second cooling hole 22 and is embedded with a second sealing ring 23. The coolant flows out from the lower end of the second cooling hole 22 to cool the cutter tooth assembly 25. The second sealing ring 23 can prevent the cooling Liquid leaks from the connection between the knife rod 21 and the handle structure 1; and a group of spring columns 24 are slidably connected to the upper ends of the front and rear sides of the knife rod 21, and a second spring 29 is installed between each spring column 24 and the knife rod 21. The knife head structure 2 can be installed on the handle structure 1 through the spring column 24 and the second spring 29, and the installation of knife head structures 2 of different sizes can be realized at the same time; a chassis 27 is installed at the lower end of the knife rod 21, and a number of mounting holes 28 are evenly opened on the chassis 27, and a number of T-shaped grooves 211 are opened on the outer wall of the knife rod 21, and a threaded hole 210 is opened at the lower end of the inner side of each T-shaped groove 211.

[0025] exist Figures 2 to 6In the figure, the tooth assembly 25 includes a tooth 251, one side of the tooth 251 is fixedly connected to a T-shaped slider 252, the lower end of the T-shaped slider 252 is fixedly connected to a fastening plate 253, the fastening plate 253 is provided with a fastening hole 254, the T-shaped slide 211 matches the T-shaped slider 252, the mounting hole 28, the fastening hole 254 and the threaded hole 210 correspond to each other, the chassis 27, the tooth assembly 25 and the knife rod 21 are sequentially embedded in the mounting hole 28, the fastening hole 254 and the threaded hole 210 by screws and fixedly connected, so that each tooth assembly 25 can be disassembled. Therefore, when a tooth assembly 25 is worn too seriously, the tooth assembly 25 can be removed and replaced with a new tooth assembly 25, thereby reducing the cost of use.

[0026] exist Figure 7 and Figure 8 In the figure, the tool handle structure 1 includes a tool handle body 11, and the front and rear sides of the upper end of the tool handle body 11 are slidably connected with a clamping head 13. One end of each clamping head 13 is located on the inner side of the tool handle body 11 and is fixedly connected to a swing rod 17. A group of first springs 16 are installed at one end of the swing rod 17, and a button 12 is provided on the outside of the tool handle body 11 through the other end of the swing rod 17. The lower end of the swing rod 17 is rotatably connected to the tool handle body 11 through a rotating shaft 18. The tool handle structure 1 is installed on the machine tool by clamping the clamping head 13 at the corresponding position on the machine tool. When the button 12 is pressed by hand, the first spring 16 is squeezed, and the swing rod 17 rotates with the rotating shaft 18 as the center. The clamping head 13 is stored in the tool handle body 11, and the tool handle structure 1 can be removed from the machine tool.

[0027] exist Figure 1 、 Figure 2 and Figure 7 In the figure, a groove matching the spring column 24 is formed on the inner side wall of the lower end of the handle body 11, and the spring column 24 is embedded in the corresponding groove, so that the handle structure 1 and the cutter head structure 2 are installed together. The cutter head structure 2 is pulled downward with force, and the second spring 29 is squeezed, and the spring column 24 slides out of the groove, so that the handle structure 1 can be quickly removed to achieve the installation of cutter head structures 2 of different sizes.

[0028] exist Figure 1 、 Figure 2 and Figure 7 In the figure, a first cooling hole 15 connected to the second cooling hole 22 is opened on the inner side of the handle body 11. The upper end of the handle body 11 is located on the outer side of the first cooling hole 15 and is embedded with a first sealing ring 14. The coolant flows from the first cooling hole 15 into the second cooling hole 22 and then flows out from the second cooling hole 22 to cool the tooth assembly 25. The first sealing ring 14 can prevent the coolant from leaking from the connection between the handle body 11 and the machine tool.

[0029] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A quick-change reamer with adjustable size, comprising a handle structure (1) and a cutter head structure (2) mounted at the lower end of the handle structure (1), characterized in that: The cutter head structure (2) includes a cutter bar (21), a plurality of cutter tooth assemblies (25) are evenly installed on the outside of the cutter bar (21), and a through second cooling hole (22) is opened in the middle of the inner side of the cutter bar (21), and the outer surface of each cutter tooth assembly (25) is sprayed with diamond particles (26), and the upper end of the cutter bar (21) is located outside the second cooling hole (22) and is embedded with a second sealing ring (23), and the front and rear of the cutter bar (21) are provided with a plurality of cutter tooth assemblies (25). A group of spring columns (24) are slidably connected to the upper end of the side, a second spring (29) is installed between each of the spring columns (24) and the knife rod (21), a chassis (27) is installed at the lower end of the knife rod (21), a plurality of mounting holes (28) are evenly opened on the chassis (27), a plurality of T-shaped slots (211) are opened on the outer side wall of the knife rod (21), and a threaded hole (210) is opened at the lower end of the inner side of each T-shaped slot (211).

2. The size-adjustable quick-change reamer according to claim 1, characterized in that: The blade tooth assembly (25) comprises a blade tooth (251), one side of the blade tooth (251) is fixedly connected to a T-shaped slider (252), the lower end of the T-shaped slider (252) is fixedly connected to a fastening plate (253), and a fastening hole (254) is provided on the fastening plate (253).

3. The size-adjustable quick-change reamer according to claim 2, characterized in that: The T-shaped slide groove (211) matches the T-shaped slider (252), the mounting hole (28), the fastening hole (254) and the threaded hole (210) correspond to each other, and the chassis (27), the cutter tooth assembly (25) and the cutter rod (21) are fixedly connected by being sequentially embedded in the mounting hole (28), the fastening hole (254) and the threaded hole (210) by screws.

4. The size-adjustable quick-change reamer according to claim 1, characterized in that: The handle structure (1) includes a handle body (11), and the front and rear sides of the upper end of the handle body (11) are slidably connected to a clamping head (13), one end of each clamping head (13) is located on the inner side of the handle body (11) and is fixedly connected to a swing rod (17), one end of the swing rod (17) is installed with a group of first springs (16), and the other end of the swing rod (17) is provided with a button (12) passing through the outer side of the handle body (11), and the lower end of the swing rod (17) is rotatably connected to the handle body (11) through a rotating shaft (18).

5. The size-adjustable quick-change reamer according to claim 4, characterized in that: The inner side wall of the lower end of the knife handle body (11) is provided with a groove matching the spring column (24), and the spring column (24) is embedded in the corresponding groove.

6. The size-adjustable quick-change reamer according to claim 4, characterized in that: A first cooling hole (15) communicating with the second cooling hole (22) is provided on the inner side of the handle body (11); a first sealing ring (14) is embedded and installed on the upper end of the handle body (11) outside the first cooling hole (15).

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