Clamping head locking mechanism of numerical control machine tool

Abstract

The utility model provides a clamping head locking mechanism of a numerical control machine tool, and belongs to the technical field of numerical control machining. In the prior art, a connector and a clamping body are included, the connector and the clamping body are of an integrated structure, the interior of the connector and the interior of the clamping body are of a hollow structure, a locking ring is formed in the connecting position of the connector and the clamping body, the clamping body is of a cone-like structure, and a clamping face is formed on the outer end face of the clamping body; the end portion of the clamping body extends outwards to form an extending clamping head, a plurality of avoiding grooves are formed in the surface of the extending clamping head, a plurality of clamping grooves are formed in the clamping body, the clamping grooves penetrate through the extending clamping head, the clamping body and the locking ring, and a key hole is formed in the connecting body and communicated with the clamping grooves. The clamping device has the advantages of no interference with a cutter, good clamping effect and stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to numerical control processing technical field relates to a numerical control machine tool chuck locking mechanism. BACKGROUND

[0002] The chuck of numerical control machine tool is mainly used for fixed and clamped workpiece, ensures workpiece to keep stable in the processing process, thereby guaranteeing the machining accuracy and efficiency.

[0003] The Chinese patent with patent publication number CN209272515U discloses a numerical control machine tool chuck locking device, which comprises a connecting arm, the top of the connecting arm is connected with the main shaft of the machine tool, a groove is arranged in the center of the bottom of the connecting arm along its axial direction, a sleeve is protruded downward at the center position of the groove, an elastic chuck is arranged at the bottom of the sleeve and opens downward, the connecting arm, the sleeve and the elastic chuck are integrally formed, a hollow locking cover is arranged at the bottom of the connecting arm, the top of the locking cover is arranged in the groove, the top of the locking cover is sleeved on the sleeve, the inner wall of the top of the locking cover is pressed against the outer wall of the elastic chuck, the inner diameter of the top of the locking cover decreases from bottom to top, the outer wall of the top of the locking cover is threadedly connected with the inner wall of the groove, a receiving groove is arranged on the outer wall of the connecting arm, a gear ring is arranged on the outer wall of the bottom of the locking cover along its circumferential direction, a clamping strip is arranged in the receiving groove, and the clamping strip is slidingly arranged in the receiving groove and is provided with teeth at the lower end, which are engaged with the gear ring.

[0004] In the numerical control machine tool chuck locking device provided by the patent, if a circular saw blade is used, the shape of the circular saw blade is special, and when the circular saw blade is installed on the chuck, the chuck is prone to interference with the circular saw blade, which may cause damage to the equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems existing in the prior art and provides a numerical control machine tool chuck locking mechanism.

[0006] The utility model discloses a numerical control machine tool chuck locking mechanism, including connecting body and clamping body, the connecting body and clamping body are integrated structure and the connecting body and clamping body inside are hollow structure, the connecting body and clamping body connection place inside form has locking ring, the clamping body is conical body structure and the clamping body outer end surface forms has clamping surface, the clamping body end portion extends outward and forms has extension chuck, the extension chuck surface is equipped with a plurality of avoids the groove, the clamping body is equipped with a plurality of clamping grooves, the clamping groove penetrates the extension chuck, clamping body and locking ring, the connecting body is equipped with key hole, the key hole is connected with clamping groove.

[0007] In the numerical control machine tool chuck locking mechanism, the avoiding groove extends to both ends of the extension chuck and is connected with the clamping surface.

[0008] In the chuck locking mechanism of the numerical control machine tool, the outer end part of the connecting body is a reinforcing body, and the reinforcing body has an outer diameter greater than the connecting body.

[0009] In the chuck locking mechanism of the numerical control machine tool, a limiting groove is formed in the inner part of the contact part of the reinforcing body and the connecting body.

[0010] Compared with the prior art, the chuck locking mechanism of the numerical control machine tool has the following beneficial effects: 1. By means of the structure of the extension chuck and the avoiding groove, the extension chuck is used to extend the clamping distance and the avoiding groove when the circular saw cutter is clamped, so that the circular saw cutter does not interfere with the utility model and does not affect normal use; 2. By means of the structure of the clamping groove, the clamping groove penetrates through the extension chuck, the clamping body and the locking ring, so that stable locking and quick release of the utility model can be realized, and the utility model has good stability and practicability. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 is a schematic diagram of the overall structure of the utility model;

[0012] Fig. 2 is a schematic diagram of the internal structure of the utility model.

[0013] In the drawing: 1, connecting body; 11, key hole; 12, reinforcing body; 13, limiting groove; 2, clamping body; 21, clamping surface; 22, clamping groove; 3, locking ring; 4, extension chuck; 41, avoiding groove. DETAILED DESCRIPTION

[0014] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0015] As shown in the drawing, Figs. 1-2 The embodiment includes a connecting body 1 and a clamping body 2, the connecting body 1 and the clamping body 2 are integrally formed, the inner parts of the connecting body 1 and the clamping body 2 are hollow structures and are in communication with each other, the connecting body 1 is used to be connected with the connecting shaft of the numerical control machine tool, the clamping body 2 is used to clamp a cutter or a workpiece, the inner part of the connecting part of the connecting body 1 and the clamping body 2 is integrally formed with a locking ring 3, the clamping body 2 is a conical structure, the radius of the outer end part of the clamping body 2 is greater than the radius of the inner end part of the clamping body 2,

[0016] As shown in the drawing, Figs. 1-2As shown, the outer end side of the clamping body 2 is a clamping surface 21, and the end of the clamping body 2 extends outward to form an extension chuck 4, the radius of the extension chuck 4 is smaller than that of the outer end of the clamping body 2, and the surface of the extension chuck 4 is provided with three circumferentially arranged avoidance grooves extending to both ends of the extension chuck 4 and connected with the clamping surface 21, the number of clamping grooves 22 is three and arranged in a circle, and the three clamping grooves 22 all penetrate the extension chuck 4, the clamping body 2 and the locking ring 3, and the connecting body 1 is provided with three key holes 11, each key hole 11 is connected with the end of the clamping groove 22.

[0017] Further details, such as Figs. 1-2 As shown, the outer end part of the connecting body 1 is a reinforcing body 12, and the outer diameter of the reinforcing body 12 is larger than that of the connecting body 1, so that when the connecting shaft of the numerical control machine tool is connected, the stability is higher and it is not easy to be damaged due to the larger thickness of the reinforcing body 12, and the inside of the contact part of the reinforcing body 12 and the connecting body 1 is provided with a limiting groove 13, which usually limits the connecting shaft of the numerical control machine tool, preventing the connecting shaft from contacting and damaging the locking ring 3.

[0018] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0019] Although various terms are used herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A chuck locking mechanism of a numerical control machine tool, comprising a connecting body (1) and a clamping body (2), characterized in that: The connector (1) and the clamping body (2) are integrated structure and the connector (1) and the clamping body (2) are hollow structure, the connector (1) and the clamping body (2) are formed with locking ring (3) inside the connection, the clamping body (2) is conical structure and the clamping body (2) outer end surface is formed with clamping surface (21), the clamping body (2) end extends outward and is formed with extension chuck (4), the extension chuck (4) surface is provided with a plurality of avoiding grooves, the clamping body (2) is provided with a plurality of clamping grooves (22), the clamping groove (22) penetrates extension chuck (4), clamping body (2) and locking ring (3), the connector (1) is provided with key hole (11), the key hole (11) is communicated with clamping groove (22).

2. A chuck locking mechanism for a numerically controlled machine tool according to claim 1, characterized in that: The avoiding groove extends to both ends of the extension chuck (4) and is connected with the clamping surface (21).

3. A chuck locking mechanism for a numerically controlled machine tool according to claim 1, characterized in that: The outer end part of the connector (1) is a reinforcing body (12), and the outer diameter of the reinforcing body (12) is greater than that of the connector (1).

4. A chuck locking mechanism for a numerically controlled machine tool according to claim 3, wherein: The inside of the contact part of the reinforcing body (12) and the connector (1) is provided with a limiting groove (13).

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