High-precision W25 chuck

Abstract

The high-precision W25 chuck comprises a chuck body, a cutter mounting hole is formed in the middle of the chuck body, the chuck body is provided with a front conical section, an inverted conical section, a straight pipe section and a threaded section, and the diameter of the chuck body in the front conical section is gradually reduced towards the front end of the chuck body. The diameter of the chuck body is gradually reduced from the inverted cone section to the rear end of the chuck body, the diameter of the straight pipe section and the diameter of the threaded section of the chuck body are smaller than the diameter of the inverted cone section, and a plurality of evenly-distributed through grooves are formed in the chuck body. The double-cone sharp-end-shaped clamp is simple in structure and reasonable in design, interference is prevented when a workpiece is machined due to the adoption of the double-cone sharp-end-shaped structure, high-precision super-strong clamping can be achieved due to the adoption of a powerful clamping structure, stress is even, a cutter does not shrink or fall off, deviation is extremely small, and the double-cone sharp-end-shaped clamp can be installed on a chuck to be used in a matched mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool holder technical field more specifically, it is a kind of high-precision W25 chuck. BACKGROUND

[0002] Machine tool spindle as one of the core components of machine tool (for example numerical control milling machine), directly influence machine tool processing. The existing machine tool spindle generally is equipped with chuck, chuck can clamp tool. However, existing chuck is generally set as single cone, such as patent authorized announcement No. CN217071629U a kind of new YER elastic chuck, it adopts plane contact compression, make the compression force that chuck is more uniform, the uniformity of compression force to realize the clamping precision of tool in chuck is higher, but this kind of chuck is prone to shrink sword and drop sword situation, interference is prone to occur when processing workpiece. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned defects in prior art, provide a kind of high-precision W25 chuck with double-tapered tip structure, it is favorable to prevent interference, with strong clamping structure, can realize high-precision super-strong clamping, stress uniform, not shrink sword not drop sword, deviation is minimal.

[0004] To achieve the above object, the utility model provides a kind of high-precision W25 chuck, including chuck body, the middle part of chuck body is equipped with the tool mounting hole passing through both ends of chuck body, chuck body is equipped with the front taper section, the reverse taper section, straight pipe section and thread section connected in sequence, the diameter of chuck body in front taper section gradually decreases to the front end direction of chuck body, the diameter of chuck body in reverse taper section gradually decreases to the rear end direction of chuck body, the diameter of chuck body in straight pipe section and thread section is less than the diameter of reverse taper section respectively, chuck body is equipped with several evenly distributed through grooves, each through groove is arranged along the length direction of chuck body, each through groove extends from the front end surface of front taper section of chuck body to straight pipe section, each through groove is communicated with tool mounting hole of chuck body and the outside of chuck body.

[0005] As preferred, the chuck body is further provided with a straight transition section between the front taper section and the reverse taper section, and the diameter of the chuck body in the straight transition section is greater than the diameter of the straight pipe section and the thread section, respectively.

[0006] As preferred, the through grooves are three and symmetrically distributed.

[0007] As preferred, the external thread of the thread section of the chuck body is provided in a reverse thread shape.

[0008] As preferred, the external thread of the thread section of the chuck body is a zigzag thread.

[0009] As preferred, the cutter mounting hole is provided with a first straight hole section, a hole expanding section and a second straight hole section arranged in sequence, the hole diameter of the first straight hole section is smaller than that of the second straight hole section, the first straight hole section is located at the front taper section to the inverted taper section area of the chuck body, and the second straight hole section is located at the straight pipe section to the thread section area of the chuck body.

[0010] As preferred, the two end opening edges of the cutter mounting hole are respectively provided with chamfers.

[0011] Compared with the prior art, the high-precision W25 chuck has the advantages of:

[0012] The high-precision W25 chuck has the advantages of simple structure, reasonable design, high-precision super-strong clamping, uniform stress, no tool shrinkage or tool drop, small deviation, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0014] Figure 1 is a structural schematic view of the high-precision W25 chuck provided by the embodiments of the present application;

[0015] Figure 2 is a sectional view of the high-precision W25 chuck provided by the embodiments of the present application. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] Please refer to Figure 1 and Figure 2The utility model discloses an embodiment provides a kind of high-precision W25 chuck, including chuck body 1, the middle part of chuck body 1 is equipped with the cutter installation hole 2 that passes through both ends of chuck body 1, the following detailed description of each component of the present embodiment is combined with the drawing.

[0018] Chuck body 1 can be sequentially connected with front taper section 11, straight transition section 12, reverse taper section 13, straight pipe section 14 and thread section 15, the diameter of chuck body 1 gradually decreases in the front end direction of chuck body 1 in front taper section 11, the diameter of chuck body 1 gradually decreases in the rear end direction of chuck body 1 in reverse taper section 13, the diameter of chuck body 1 in straight transition section 12 is greater than the diameter of straight pipe section 14 and thread section 15 respectively, the diameter of chuck body 1 in straight pipe section 14 and thread section 15 is less than the diameter of reverse taper section 13 respectively.

[0019] Chuck body 1 is provided with a plurality of evenly distributed through grooves 3, each through groove 3 is arranged along the length direction of chuck body 1, each through groove 3 extends from the front end face of front taper section 11 of chuck body 1 to straight pipe section 14, and each through groove 3 communicates the cutter installation hole 2 of chuck body 1 with the outside of chuck body 1.

[0020] In the present embodiment, the through groove 3 can preferably be provided with three, and the three through grooves 3 are centrally symmetrically distributed, so that the chuck can form a geometric triangular cooperation type structure, so that the clamping rigidity is stronger, and the accuracy is more stable.

[0021] In the embodiment, the external thread of the thread section 15 of the chuck body 1 can be provided in the form of reverse thread, and the external thread can be preferably provided in the form of sawtooth thread.

[0022] As shown in Figure 2 The cutter installation hole 2 can be provided with a first straight hole section 21, a counterbore section 22 and a second straight hole section 23 arranged in sequence, the hole diameter of the first straight hole section 21 is smaller than the hole diameter of the second straight hole section 23, the first straight hole section 21 is located in the front taper section 11 to the reverse taper section 13 region of the chuck body 1, and the second straight hole section 23 is located in the straight pipe section 14 to the thread section 15 region of the chuck body 1.

[0023] In addition, the two end opening edges of the cutter installation hole 2 can also be respectively provided with chamfers, which facilitate the installation of the cutter.

[0024] Specific use, the chuck of the present embodiment can be installed on various w25 chucks, as long as the W25 chuck works, this chuck will cooperate with the chuck to form a tensioning mechanism.

[0025] In summary, the utility model discloses simple structure, reasonable in design, and the chuck body adopts double cone tip, when processing workpiece is favorable to prevent interference, and adopts strong clamping structure, can realize high-precision superstrong clamping, even stress, not shrink the knife and drop the knife, and the deviation is extremely small, and the overall clamping can realize 0.001 high accuracy, can be installed on chuck and cooperate with each other.

[0026] The above embodiment is the preferred embodiment of the utility model, but the embodiment of the utility model is not limited by the above embodiment, and any change, modification, replacement, combination, simplification, which does not deviate from the spirit and principle of the utility model, should be equivalent replacement mode, and all are included in the protection scope of the utility model.

Claims

1. A high-precision W25 chuck, characterized by: It includes a chuck body, a middle part of which is provided with a tool mounting hole passing through both ends of the chuck body, the chuck body is provided with a front cone section, an inverted cone section, a straight pipe section and a threaded section which are connected in sequence, the diameter of the chuck body in the front cone section gradually decreases toward the front end direction of the chuck body, the diameter of the chuck body in the inverted cone section gradually decreases toward the rear end direction of the chuck body, the diameters of the chuck body in the straight pipe section and the threaded section are respectively smaller than the diameter of the inverted cone section, a plurality of evenly distributed through grooves are provided on the chuck body, each through groove is arranged along the length direction of the chuck body, each through groove extends from the front end face of the front cone section of the chuck body to the straight pipe section, and each through groove connects the tool mounting hole of the chuck body and the outside of the chuck body.

2. A high-precision W25 chuck according to claim 1, characterized in that: The chuck body is further provided with a straight transition section between the front cone section and the inverted cone section. The diameter of the chuck body in the straight transition section is larger than the diameters of the straight pipe section and the threaded section.

3. A high-precision W25 chuck according to claim 1, characterized in that: There are three through grooves, which are distributed symmetrically around the center.

4. A high-precision W25 chuck according to claim 1, characterized in that: The external thread of the threaded section of the chuck body is configured as an inverted thread.

5. The high-precision W25 chuck according to claim 1, characterized in that: The external thread of the threaded section of the chuck body is a sawtooth thread.

6. The high-precision W25 chuck according to claim 1, characterized in that: The tool mounting hole is provided with a first straight hole section, an expanded hole section and a second straight hole section arranged in sequence. The aperture of the first straight hole section is smaller than the aperture of the second straight hole section. The first straight hole section is located in the area from the front cone section to the inverted cone section of the chuck body, and the second straight hole section is located in the area from the straight pipe section to the threaded section of the chuck body.

7. The high-precision W25 chuck according to claim 1, characterized in that: The opening edges at both ends of the tool mounting hole are respectively provided with chamfers.

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