Numerical control pneumatic clamping assembly

Abstract

The utility model provides a numerical control pneumatic clamping assembly, and belongs to the technical field of numerical control tools. The fixture solves the problem that the quality of a product is poor due to the fact that an existing fixture cannot well fix a machined part. The numerical control pneumatic clamping assembly comprises a machine tool base, a chuck base is fixedly installed on the machine tool base, a collet body used for clamping a workpiece is arranged in the chuck base, a hand wheel shaft is fixedly arranged at the rear end of the collet body, and a chuck sleeve is arranged in the chuck base and is opposite to the outer portion of the collet body. A driving air cylinder used for driving the collet body to conduct clamping is fixedly arranged at the rear end of the collet base, one end of the collet body extends out of the collet sleeve, and the other end of the collet body extends into the collet sleeve to be connected with a hand wheel shaft. The rear end of the hand wheel shaft is connected with the driving air cylinder and controls the collet chuck body to move back and forth on the chuck sleeve so as to clamp a workpiece. The clamping device has the advantage of being stable in clamping.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control tools and relates to a clamping component, in particular to a numerical control pneumatic clamping component. Background Art

[0002] At present, in the prior art, the tool of the processing device is mainly inserted into the tool handle through a collet. Specifically, the collet is elastically deformed after being inserted into the tool handle to clamp the processing tool. After the collets and tools produced by many manufacturers are inserted into the tool handle, the collets cannot continuously and stably provide elastic force to clamp the tool. Therefore, it often happens that the tool cannot be kept in the collet and the tool handle for a long time during processing, and then the tool and the collet are separated from the tool handle, causing serious processing accidents. Therefore, it is very necessary to reasonably design the collet, so as to ensure sufficient clamping force so that the collet clamps the tool in the tool handle.

[0003] Announcement No. CN217727872U discloses a tool collet and a tool handle, including a collet body, the collet body is provided with a socket and a deformation groove, the socket is opened at the front end of the collet body and extends along its axial direction, the outer wall surface of the collet body is provided with a deformation groove, the deformation groove is connected with the socket and extends along the axial direction of the collet body, and the installation and clamping of the above structure cannot form a stable fixed locking. Summary of the invention

[0004] The purpose of the utility model is to provide a numerically controlled pneumatic clamping component with stable clamping in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a CNC pneumatic clamping assembly, including a machine tool base, characterized in that a chuck base is fixedly installed on the machine tool base, a collet body for clamping a workpiece is arranged in the chuck base, a handwheel shaft is fixedly arranged at the rear end of the collet body, a chuck sleeve is arranged in the chuck base and relative to the outside of the collet body, a driving cylinder for driving the collet body for clamping is fixedly arranged at the rear end of the chuck base, one end of the collet body extends out of the chuck sleeve, the other end of the collet body extends into the chuck sleeve and is connected with the handwheel shaft, the rear end of the handwheel shaft is connected to the driving cylinder and controls the collet body to move back and forth on the chuck sleeve to clamp the workpiece.

[0006] In the above-mentioned CNC pneumatic clamping assembly, a mounting seat is fixedly installed on the machine tool base, and a driving motor for driving the chuck sleeve to rotate is arranged on the machine tool base and located on the mounting seat. The motor shaft of the driving motor extends into the mounting seat and is connected to a gear assembly for driving the handwheel shaft to rotate.

[0007] In the above-mentioned CNC pneumatic clamping assembly, the front end of the collet body is provided with three clamping parts for clamping, the three clamping parts form a clamping space for clamping the workpiece, the diameter of the collet part decreases from front to back, and the three clamping parts are moved forward and backward to respectively abut against the inner wall of the collet sleeve to clamp the workpiece.

[0008] In the above-mentioned CNC pneumatic clamping assembly, two bearing assemblies are arranged outside the chuck sleeve.

[0009] Compared with the prior art, the numerically controlled pneumatic clamping assembly controls the movement of a chuck sleeve connected to the collet body by driving an air cylinder, thereby clamping the workpiece on the collet body, making the workpiece clamping more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0012] In the figure, 1, machine tool base; 2, chuck base; 3, collet body; 4, handwheel shaft; 5, chuck sleeve; 6, drive cylinder; 7, mounting base; 8, drive motor; 9, gear assembly; 10, chuck head; 11, clamping space; 12, bearing assembly. DETAILED DESCRIPTION

[0013] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0014] like Figure 1 , Figure 2 As shown, the present CNC pneumatic clamping assembly comprises a machine tool base 1, on which a chuck base 2 is fixedly mounted, a collet body 3 for clamping a workpiece is arranged in the collet base 2, a handwheel shaft 4 is fixedly arranged at the rear end of the collet body 3, a collet sleeve 5 is arranged in the collet base 2 and outside the collet body 3, a driving cylinder 6 for driving the collet body 3 for clamping is fixedly arranged at the rear end of the collet base 2, one end of the collet body 3 extends out of the collet sleeve 5, and the other end of the collet body 3 extends into the collet sleeve 5 and is connected with the handwheel shaft 4, and the rear end of the handwheel shaft 4 is connected with the driving cylinder 6 and controls the collet body 3 to move back and forth on the collet sleeve 5 to clamp the workpiece.

[0015] In further detail, a mounting seat 7 is fixedly mounted on the machine tool base 1, and a driving motor 8 for driving the chuck sleeve 5 to rotate is arranged on the machine tool base 1 and on the mounting seat 7, and the motor shaft of the driving motor 8 extends into the mounting seat 7 and is connected to a gear assembly 9 for driving the handwheel shaft 4 to rotate. The driving motor 8 drives the gear assembly 9 to rotate, thereby driving the handwheel shaft 4 to rotate, and the rotation of the handwheel shaft 4 drives the workpiece on the collet body 3 to rotate.

[0016] To further explain the clamping of the workpiece, the handwheel shaft 4 is moved backward by driving the air cylinder 6. Since the collet body 3 is provided at the front end of the handwheel shaft 4, the collet body 3 is driven to move backward. The three chuck parts 10 are subjected to the pressure of the chuck sleeve 5, and the three chuck parts 10 move into the clamping space 11, thereby clamping the workpiece set in the chuck parts 10.

[0017] In further detail, the front end of the collet body 3 is provided with three chuck parts 10 for clamping, and the three chuck parts 10 form a clamping space 11 for clamping the workpiece. The diameter of the collet part decreases from front to back, and the three chuck parts 10 move forward and backward to respectively abut against the inner wall of the chuck sleeve 5 to clamp the workpiece.

[0018] To be more specific, two bearing assemblies 12 are disposed outside the chuck sleeve 5 .

[0019] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0020] Although the terms such as machine tool base 1, chuck base 2, collet body 3, handwheel shaft 4, chuck sleeve 5, drive cylinder 6, mounting base 7, drive motor 8, gear assembly 9, chuck head 10, clamping space 11, bearing assembly 12 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A CNC pneumatic clamping assembly, comprising a machine tool base (1), characterized in that: A chuck seat (2) is fixedly mounted on the machine tool seat (1), a collet body (3) for clamping a workpiece is arranged in the collet seat (2), a handwheel shaft (4) is fixedly arranged at the rear end of the collet body (3), a collet sleeve (5) is arranged in the collet seat (2) and relative to the outside of the collet body (3), a driving cylinder (6) for driving the collet body (3) for clamping is fixedly arranged at the rear end of the collet seat (2), one end of the collet body (3) extends out of the collet sleeve (5), the other end of the collet body (3) extends into the collet sleeve (5) and is connected to the handwheel shaft (4), the rear end of the handwheel shaft (4) is connected to the driving cylinder (6) and controls the collet body (3) to move forward and backward on the collet sleeve (5) to clamp the workpiece.

2. A CNC pneumatic clamping assembly according to claim 1, characterized in that: A mounting seat (7) is fixedly mounted on the machine tool base (1); a driving motor (8) for driving the chuck sleeve (5) to rotate is arranged on the machine tool base (1) and located on the mounting seat (7); a motor shaft of the driving motor (8) extends into the mounting seat (7) and is connected to a gear assembly (9) for driving the handwheel shaft (4) to rotate.

3. A CNC pneumatic clamping assembly according to claim 1, characterized in that: The front end of the collet body (3) is provided with three chuck parts (10) for clamping. The three chuck parts (10) form a clamping space (11) for clamping a workpiece. The diameter of the chuck parts (10) decreases from front to back. The three chuck parts (10) move forward and backward to respectively abut against the inner wall of the chuck sleeve (5) to clamp the workpiece.

4. A CNC pneumatic clamping assembly according to claim 1, characterized in that: Two bearing assemblies (12) are arranged outside the chuck sleeve (5).

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