High-strength chuck

Abstract

The high-strength chuck comprises a chuck body, a cutter mounting hole penetrating through the two ends of the chuck body is formed in the middle of the chuck body, the chuck body is divided into a clamping section and a threaded section, the clamping section of the chuck body is of a conical structure, and the diameter of the chuck body is gradually reduced in the direction from the clamping section to the threaded section. A plurality of evenly-distributed through grooves are formed in the clamping section of the chuck body, each through groove is formed in the length direction of the chuck body, each through groove extends to the starting end of the threaded section from the end face of the end of the clamping section of the chuck body, and each through groove communicates with the cutter mounting hole of the chuck body and the exterior of the clamping section of the chuck body. The powerful clamping device is simple in structure and reasonable in design, adopts a powerful clamping structure, can achieve high-precision and super-strong clamping, does not shrink or fall off, and can be installed on a driven powerful cutter handle to be used in a matched mode.

Description

Technical Field

[0001] This utility model relates to the field of tool clamping technology, and more specifically, to a high-strength chuck. Background Technology

[0002] As one of the core components of a machine tool (such as a CNC milling machine), the machine tool spindle directly affects the machining process. Existing machine tool spindles generally have a chuck to clamp the cutting tool. However, existing chucks typically use a double-cone shape, such as the elastic chuck for clamping cutting tools described in patent publication number CN201217091Y. While this type of chuck has advantages such as light weight, low cost, and ease of manufacturing, the clamping force of such chucks still needs improvement, as they are prone to tool retraction and slippage. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a high-strength chuck that adopts a strong clamping structure, can achieve high-precision and ultra-strong clamping, and does not shrink or fall off the tool.

[0004] To achieve the above objectives, this utility model provides a high-strength chuck, including a chuck body. The chuck body has a tool mounting hole in the middle that extends through both ends of the chuck body. The chuck body is divided into a clamping section and a threaded section. The clamping section of the chuck body is configured with a conical structure. The diameter of the chuck body gradually decreases from the clamping section towards the threaded section. The clamping section of the chuck body has several evenly distributed through slots. Each through slot is arranged along the length of the chuck body and extends from the end face of the clamping section to the starting end of the threaded section. Each through slot connects the tool mounting hole of the chuck body and the outside of the clamping section of the chuck body.

[0005] Preferably, the through groove has four grooves, which are centrally symmetrically distributed, and the four through grooves divide the clamping section of the chuck body into four spaced arc-shaped blocks.

[0006] Preferably, the external thread of the threaded section of the chuck body is a T-type thread.

[0007] Preferably, the diameter of the tool mounting hole at one end of the threaded section area of ​​the chuck body is larger than the diameter of the rest of the hole, and the tool mounting hole forms a through hole with a T-shaped cross-section.

[0008] Preferably, the two ends of the tool mounting hole are chamfered.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This utility model has a simple structure and reasonable design. The chuck body is divided into a clamping section and a threaded section. The clamping section of the chuck body is set into a conical structure. The diameter of the chuck body gradually decreases from the clamping section to the threaded section. The clamping section of the chuck body has several evenly distributed through slots. This utility model adopts a strong clamping structure, which can achieve high-precision and ultra-strong clamping, without tool shrinkage or falling off. It can be installed on a driven strong tool holder for use. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the high-strength chuck provided in this embodiment of the utility model;

[0013] Figure 2 This is a cross-sectional view of the high-strength chuck provided in an embodiment of this utility model. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] Please refer to Figure 1 and Figure 2 This utility model provides a high-strength chuck, including a chuck body 1. The chuck body 1 has a tool mounting hole 14 extending through both ends of the chuck body 1 in the middle. The chuck body 1 is divided into a clamping section 11 and a threaded section 12. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0016] The clamping section 11 of the chuck body 1 can be configured as a conical structure. The diameter of the clamping section 11 of the chuck body 1 gradually decreases towards the threaded section 12. The clamping section 11 of the chuck body 1 has several evenly distributed through grooves 13. Each through groove 13 is arranged along the length direction of the chuck body 1. Each through groove 13 extends from the end face of the clamping section 11 of the chuck body 1 to the starting end of the threaded section 12. Each through groove 13 connects the tool mounting hole 14 of the chuck body 1 and the outside of the clamping section 11 of the chuck body 1.

[0017] In this embodiment, four through slots 13 are preferably provided. The four through slots 13 are centrally symmetrically distributed and divide the clamping section 11 of the chuck body 1 into four spaced arc-shaped blocks.

[0018] In this embodiment, preferably, the external thread of the threaded section 12 of the chuck body 1 can be a T-type thread.

[0019] like Figure 2 As shown, the diameter of the tool mounting hole 14 at one end of the threaded section area of ​​the chuck body 1 is larger than that of the rest of the hole, and the tool mounting hole 14 forms a through hole with a T-shaped cross-section.

[0020] To facilitate tool mounting, the edges of the openings at both ends of the tool mounting hole 14 can be chamfered.

[0021] During operation, the high-strength chuck of this embodiment can be installed on various existing driven heavy-duty tool holders. As long as the driving part of the tool holder starts to work, the chuck will retract into the tool holder to achieve radial clamping. Because the chuck is one degree on one side, the smaller the angle, the stronger the clamping force. Therefore, this chuck is a very powerful heavy-duty machining tool.

[0022] In summary, this utility model has a simple structure and reasonable design. It adopts a strong clamping structure, which can achieve high-precision and ultra-strong clamping, without the tool shrinking or falling off. It can be installed on a driven strong tool holder for use.

[0023] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A high-strength chuck, characterized in that: The chuck body includes a chuck body with a tool mounting hole extending through both ends of the chuck body in the middle. The chuck body is divided into a clamping section and a threaded section. The clamping section of the chuck body is designed with a conical structure. The diameter of the chuck body gradually decreases from the clamping section towards the threaded section. The clamping section of the chuck body has several evenly distributed through slots. Each through slot is arranged along the length of the chuck body and extends from the end face of the clamping section to the beginning end of the threaded section. Each through slot connects the tool mounting hole of the chuck body and the outside of the clamping section of the chuck body.

2. The high-strength chuck according to claim 1, characterized in that: The passage has four grooves, which are centrally symmetrically distributed. The four grooves divide the clamping section of the chuck body into four spaced arc-shaped blocks.

3. A high-strength chuck according to claim 1, characterized in that: The external thread of the threaded section of the chuck body is a T-type thread.

4. A high-strength chuck according to claim 1, characterized in that: The diameter of the tool mounting hole at one end of the threaded section area of ​​the chuck body is larger than that at the other end, and the tool mounting hole forms a through hole with a T-shaped cross-section.

5. A high-strength chuck according to claim 1, characterized in that: The two ends of the tool mounting hole are chamfered.

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