Tool holder adapter sleeve

Abstract

The utility model relates to the tool holder bar assembly field especially relates to tool holder bar adapter sleeve, including tool holder body, the tool holder body is connected with the adapter sleeve body for connecting tool bit on screw thread, the adapter sleeve body is made by the integral type of connecting sleeve, connecting cone, screw rod part, and the taper C of connecting cone satisfies: 1: 10 less than or equal to C 1: 15, wherein, taper C = (D - d) / L, D is the big end diameter of connecting cone, d is the small end diameter of connecting cone, L is the axial length of connecting cone. In the utility model, only need to replace adapter sleeve after wearing, do not need to replace tool holder, save the cost, the other end of adapter sleeve can butt joint the tool head of many specifications simultaneously, the range of applicability is wide, and through adapter sleeve body, ensure the concentricity and the stability of tool and tool holder assembly.

Description

Technical Field

[0001] This utility model relates to the field of tool holder assembly technology, and in particular to tool holder adapter sleeve. Background Technology

[0002] In the field of mechanical manufacturing, especially in cutting processes, a cutting tool is a replaceable cutting tool used by a machine to remove excess material from a workpiece to obtain the desired geometry, size, and surface quality.

[0003] Most existing cutting tools use an integrated structure between the cutting head and the tool holder. When the cutting head wears out, the entire tool is usually replaced, resulting in high maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a tool holder adapter sleeve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A tool holder adapter sleeve includes a tool holder body, on which an adapter sleeve body for connecting a tool tip is threadedly connected. The adapter sleeve body is integrally formed from a connecting sleeve, a connecting cone, and a screw section, and the taper C of the connecting cone satisfies: 1:10≤C≤1:15; where taper C = (Dd) / L, D is the large end diameter of the connecting cone, d is the small end diameter of the connecting cone, and L is the axial length of the connecting cone.

[0006] Furthermore, a preferred configuration is that the connecting sleeve includes a first blade connecting portion for mounting the blade.

[0007] Furthermore, in a preferred configuration, the connecting sleeve includes a second cutter head connecting portion, wherein a tapered straight groove type threaded cavity is provided at the center of one end face of the second cutter head connecting portion for assembling a cutter with a tapered straight groove type screw.

[0008] Furthermore, in a preferred configuration, the connecting sleeve includes a third cutter head connecting portion, with a flat-end tapered groove type threaded cavity opened at the center of one end face of the third cutter head connecting portion, for assembling a cutter with a flat-end tapered groove type screw.

[0009] Furthermore, in a preferred configuration, the connecting sleeve includes a fourth cutter head connecting portion, wherein a flat-end flat groove type threaded cavity is provided at the center of one end face of the fourth cutter head connecting portion for assembling a cutter with a flat-end flat groove type screw.

[0010] Furthermore, in a preferred configuration, a first internal coolant channel is provided through the middle of the tool holder body.

[0011] Furthermore, in a preferred configuration, a second internal coolant channel is provided through the middle of the connecting sleeve, connecting cone, and screw section, and the inner diameter of the second internal coolant channel is the same as that of the first internal coolant channel.

[0012] The beneficial effects of this utility model are as follows: In this invention, only the adapter sleeve needs to be replaced after wear, without replacing the tool holder, thus saving costs. At the same time, the other end of the adapter sleeve can be connected to various sizes of tool heads, making it widely applicable. Furthermore, the adapter sleeve body ensures the concentricity and stability of the tool and tool holder after assembly. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram showing the disassembled and cross-sectional view of the tool holder body and the connecting sleeve, which is the connecting part of the first tool head; Figure 2 This is a structural schematic diagram showing the disassembled and sectional view of the tool holder body and the connecting sleeve, which is the connecting part of the second tool head; Figure 3 This is a structural schematic diagram showing the disassembled and sectional view of the adapter sleeve body, which is the connecting part of the third cutter head, and the tool holder body. Figure 4 This is a structural schematic diagram showing the disassembled and partially sectional view of the adapter sleeve body, which is the connecting part of the first cutter head, and the tool holder body. Figure 5 This is a structural schematic diagram showing the disassembled and partially sectional view of the adapter sleeve body, which is the connecting part of the fourth cutter head, and the cutter shank body.

[0014] In the figure: 1. Tool holder body; 11. Connecting cavity; 12. Threaded cavity; 13. First internal coolant channel; 2. Adapter sleeve body; 21. Screw part; 22. Connecting cone; 23. Connecting sleeve; 231. First tool head connecting part; 232. Second tool head connecting part; 233. Third tool head connecting part. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example 1 Reference Figure 1 , 4A tool holder adapter sleeve includes a tool holder body 1, on which an adapter sleeve body 2 for connecting a tool tip is threadedly connected. The adapter sleeve body 2 is integrally formed from a connecting sleeve 23, a connecting cone 22, and a screw part 21. The taper C of the connecting cone 22 satisfies: 1:10 ≤ C ≤ 1:15; where taper C = (Dd) / L, D is the large end diameter of the connecting cone, d is the small end diameter of the connecting cone, and L is the axial length of the connecting cone. The tapered surface fit has a self-centering function, ensuring automatic alignment between the adapter sleeve and the tool holder body, ensuring concentricity after assembly. Furthermore, the tapered surface fit of the connecting cone provides a very large contact area, ensuring the stability of the adapter sleeve body after assembly with the tool holder body.

[0017] The connecting sleeve 23 includes a first cutting head connecting portion 231 for mounting a cutting blade. The first cutting head connecting portion 231 can directly mount a standard cutting blade, and the standard cutting blade is fixed to the first cutting head connecting portion 231 by screws.

[0018] A first internal coolant channel 13 is formed through the center of the tool holder body 1. A second internal coolant channel is formed through the center of the connecting sleeve 23, the connecting cone 22, and the screw part 21, and the inner diameter of the second internal coolant channel is the same as the inner diameter of the first internal coolant channel 13. At the same time, a threaded cavity 12 for mounting the screw part 21 and a connecting cavity for inserting the connecting cone 22 are formed inside the tool holder body 1.

[0019] Example 2 Reference Figure 2 A tool holder adapter sleeve includes a tool holder body 1, on which an adapter sleeve body 2 for connecting a tool tip is threadedly connected. The adapter sleeve body 2 is integrally formed from a connecting sleeve 23, a connecting cone 22, and a screw part 21, and the taper C of the connecting cone 22 satisfies: 1:10≤C≤1:15; where taper C = (Dd) / L, D is the large end diameter of the connecting cone, d is the small end diameter of the connecting cone, and L is the axial length of the connecting cone.

[0020] The connecting sleeve 23 includes a second cutter head connecting part 232. A tapered end straight groove type threaded cavity is opened at the center of one end face of the second cutter head connecting part 232 for assembling a cutter with a tapered end straight groove type screw.

[0021] A first internal coolant channel 13 is formed through the middle of the tool holder body 1. A second internal coolant channel is formed through the middle of the connecting sleeve 23, the connecting cone 22, and the screw part 21, and the inner diameter of the second internal coolant channel is the same as the inner diameter of the first internal coolant channel 13.

[0022] Example 3 Reference Figure 3The tool holder adapter sleeve includes a tool holder body 1, on which an adapter sleeve body 2 for connecting the tool tip is threadedly connected. The adapter sleeve body 2 is integrally made of a connecting sleeve 23, a connecting cone 22, and a screw part 21, and the taper C of the connecting cone 22 satisfies: 1:10≤C≤1:15; where taper C = (Dd) / L, D is the large end diameter of the connecting cone, d is the small end diameter of the connecting cone, and L is the axial length of the connecting cone.

[0023] The connecting sleeve 23 includes a third cutter head connecting part 233. A flat-end tapered groove type threaded cavity is opened at the center of one end face of the third cutter head connecting part 233 for assembling a cutter with a flat-end tapered groove type screw.

[0024] A first internal coolant channel 13 is formed through the middle of the tool holder body 1. A second internal coolant channel is formed through the middle of the connecting sleeve 23, the connecting cone 22, and the screw part 21, and the inner diameter of the second internal coolant channel is the same as the inner diameter of the first internal coolant channel 13.

[0025] Example 4 Reference Figure 5 The tool holder adapter sleeve includes a tool holder body 1, on which an adapter sleeve body 2 for connecting the tool tip is threadedly connected. The adapter sleeve body 2 is integrally made of a connecting sleeve 23, a connecting cone 22, and a screw part 21, and the taper C of the connecting cone 22 satisfies: 1:10≤C≤1:15; where taper C = (Dd) / L, D is the large end diameter of the connecting cone, d is the small end diameter of the connecting cone, and L is the axial length of the connecting cone.

[0026] The connecting sleeve 23 includes a fourth cutter head connecting part 234. A flat-end flat groove type threaded cavity is opened at the center of one end face of the fourth cutter head connecting part 234 for assembling a cutter with a flat-end flat groove type screw.

[0027] A first internal coolant channel 13 is formed through the middle of the tool holder body 1. A second internal coolant channel is formed through the middle of the connecting sleeve 23, the connecting cone 22, and the screw part 21, and the inner diameter of the second internal coolant channel is the same as the inner diameter of the first internal coolant channel 13.

[0028] In this embodiment, the screw portion 21 of the adapter sleeve is aligned with the threaded cavity at the front end of the tool holder body 1, and the adapter sleeve is screwed into the tool holder body, and the adapter sleeve is finally screwed tight and locked. The connecting sleeve 23 includes a first tool head connecting portion 231 for directly mounting a standard cutting tool, and the standard cutting tool is fixed to the first tool head connecting portion 231 by a screw. The connecting sleeve 23 includes a second tool head connecting portion 232, with a tapered straight groove threaded cavity at the center of one end face for assembling a tool with a tapered straight groove screw. The connecting sleeve 23 includes a third tool head connecting portion 233, with a flat tapered groove threaded cavity at the center of one end face for assembling a tool with a flat tapered groove screw. A fourth tool head connecting portion 234 has a flat flat groove threaded cavity at the center of one end face for assembling a tool with a flat flat groove screw.

[0029] During the screw connection between the screw and the threaded cavity, the conical surface of the connecting cone 22 is forced to contact and fit tightly with the conical surface inside the connecting cavity of the tool holder body 1, thereby completing the assembly of the adapter sleeve body and the tool holder body. The end face of the connecting sleeve near the connecting cone fits tightly with the end face of the tool holder body 1 near the connecting cavity to form a first positioning surface. The end face of the connecting cone near the screw fits tightly with the end face of the connecting cavity inside the tool holder body 1 near the threaded cavity to form a second positioning end face. The end face of the screw away from the connecting cone fits tightly with the end face inside the threaded cavity to form a third positioning end face, ensuring the concentricity and stability of the tool and tool holder after assembly.

[0030] In this invention, only the adapter sleeve needs to be replaced after wear, without replacing the tool holder, thus saving costs. At the same time, the other end of the adapter sleeve can be connected to various sizes of tool heads, making it widely applicable. Furthermore, the adapter sleeve body ensures the concentricity and stability of the tool and tool holder after assembly.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tool holder adapter sleeve, comprising a tool holder body (1), characterized in that, The tool holder body (1) is threaded with an adapter sleeve body (2) for connecting the tool head. The adapter sleeve body (2) is integrally made of a connecting sleeve (23), a connecting cone (22), and a screw part (21). The taper C of the connecting cone (22) satisfies: 1:10≤C≤1:15; where taper C = (Dd) / L, D is the large end diameter of the connecting cone, d is the small end diameter of the connecting cone, and L is the axial length of the connecting cone.

2. The tool holder adapter sleeve according to claim 1, characterized in that, The connecting sleeve (23) includes a first blade connecting part (231) for mounting the blade.

3. The tool holder adapter sleeve according to claim 1, characterized in that, The connecting sleeve (23) includes a second cutter head connecting part (232), and a tapered end straight groove type threaded cavity is opened at the center of one end face of the second cutter head connecting part (232) for assembling a cutter with a tapered end straight groove type screw.

4. The tool holder adapter sleeve according to claim 1, characterized in that, The connecting sleeve (23) includes a third cutter head connecting part (233), and a flat-end tapered groove type threaded cavity is opened at the center of one end face of the third cutter head connecting part (233) for assembling a cutter with a flat-end tapered groove type screw.

5. The tool holder adapter sleeve according to claim 1, characterized in that, The connecting sleeve (23) includes a fourth cutter head connecting part (234), and a flat-end flat groove type threaded cavity is opened at the center of one end face of the fourth cutter head connecting part (234) for assembling a cutter with a flat-end flat groove type screw.

6. The tool holder adapter sleeve according to claim 1, characterized in that, The tool holder body (1) has a first internal coolant channel (13) that runs through the middle of its interior.

7. The tool holder adapter sleeve according to claim 1, characterized in that, The connecting sleeve (23), connecting cone (22), and screw part (21) have a second internal coolant channel through the middle, and the inner diameter of the second internal coolant channel is the same as the inner diameter of the first internal coolant channel (13).

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