Fixing device for CNC machine tool

Abstract

The utility model relates to the field of CNC machine tools, in particular to a fixing device for a CNC machine tool. Comprising a mounting table, a fixed circular ring plate mounted on the mounting table, four square clamping plates sequentially mounted in the fixed circular ring plate, vertical clamping rods mounted between every two adjacent square clamping plates, and vertical clamping rods connected with the four square clamping plates and used for clamping the square clamping plates, the first driving assembly is used for driving the four square clamping plates to draw close to each other so as to contract the square clamping area, and the second driving assembly is connected with the vertical clamping rods and used for driving the vertical clamping rods to move towards the middle of the fixed annular plate. Through the arrangement, the clamping mode can be adjusted according to the types of workpieces as required, the practicability of the fixing device is greatly improved, and the increasing industrial requirements are effectively met.

Description

Technical Field

[0001] The utility model relates to the field of CNC machine tools, in particular to a fixing device for CNC machine tools. Background Art

[0002] CNC machine tools, also known as numerically controlled machine tools, are automated machine tools equipped with a program control system. The control system within the machine tool can logically process programs specified by control codes or other symbolic instructions and compile them, so that the machine tool can process parts.

[0003] The workpieces to be processed by existing CNC machine tools are mostly square or round, and the fixing devices used by CNC machine tools to fix the workpieces to be processed have a single fixing method and can only fix square or round workpieces. When the workpiece to be processed needs to be changed, the fixing devices need to be frequently replaced, which makes the work cumbersome and the production efficiency low.

[0004] Therefore, it is necessary to propose a technical means to solve the above defects. Utility Model Content

[0005] The utility model adopts the following technical solutions:

[0006] A fixing device for a CNC machine tool comprises a mounting platform, a fixed circular ring plate mounted on the mounting platform, four square clamps mounted in sequence in the fixed circular ring plate, and the four square clamps are surrounded to form a square clamping area, a vertical clamping rod mounted between two adjacent square clamps, a first driving component connected to the four square clamps and used to drive the four square clamps to move closer to each other to shrink the square clamping area, and a second driving component connected to the vertical clamping rod and used to drive each vertical clamping rod to move toward the middle of the fixed circular ring plate.

[0007] Preferably, the first driving assembly includes a power cylinder mounted on the fixed circular plate and connected to the square clamping plate, for driving the square clamping plate to move toward the middle of the fixed circular plate.

[0008] Preferably, the second driving assembly includes a rotating annular plate, a driving module, a connecting block, a first pushing block, a second pushing block and a reset module; the rotating annular plate is installed on the outer circumference of the fixed annular plate and can rotate along the fixed annular plate; the driving module is connected to the rotating annular plate for driving the rotating annular plate to rotate; the connecting block is installed in the fixed annular plate and is connected to the vertical clamping rod, and the connecting block moves in the fixed annular plate toward the middle of the fixed annular plate; the first pushing block is installed at one end of the connecting block extending outward from the outside of the fixed annular plate; the second pushing block is installed in the first One side of the pushing block is connected to the rotating circular ring plate; the first pushing block and the second pushing block are respectively provided with a corresponding first pushing surface and a second pushing surface, so that when the rotating circular ring plate rotates, the first pushing surface and the second pushing surface are driven to abut against each other, so that the first pushing block drives the connecting block to move in the fixed circular ring plate toward the center of the fixed circular ring plate, and then drives the vertical clamping rod to move toward the fixed circular ring plate; the reset module is installed on the fixed circular ring plate and connected to the connecting block, so as to drive the connecting block to reset after the first pushing block contacts and pushes with the second pushing block.

[0009] Preferably, an escape groove for movement of the connecting block is provided in the fixed circular ring plate, and the escape groove is arranged toward the center of the fixed circular ring plate.

[0010] Preferably, the driving module includes a ring gear annularly mounted on the outer periphery of the rotating annular plate, a transmission gear meshing with the ring gear, and a driving motor connected to the transmission gear for driving the transmission gear to rotate.

[0011] Preferably, the reset module includes a reset spring mounted on the fixed annular plate, connected to the reset spring and the connecting block, and is used to compress the pressure block of the reset spring when the connecting block moves toward the center of the fixed annular plate.

[0012] The utility model relates to a fixing device for a CNC machine tool. By fixing the circular ring plate, the square clamping plate, the vertical clamping plate, the first drive assembly and the second drive assembly, the clamping mode can be adjusted as needed according to the type of workpiece, thereby greatly improving the practicality of the fixing device and effectively meeting the growing industrial needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an overall schematic diagram of a fixing device for a CNC machine tool according to the present invention;

[0014] Figure 2 for Figure 1The overall schematic diagram after removing the mounting platform, transmission gear, drive motor, rotating circular plate, and fixed circular plate. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0018] See also Figure 1 and Figure 2 A fixing device for a CNC machine tool includes a mounting platform 10, a fixed circular plate 20 mounted on the mounting platform 10, four square clamps 30 sequentially mounted in the fixed circular plate 20, and the four square clamps 30 are surrounded to form a square clamping area, a vertical clamping rod 40 installed between two adjacent square clamps 30, a first driving component 50 connected to the four square clamps 30 and used to drive the four square clamps 30 to move closer to each other to shrink the square clamping area, and a second driving component 60 connected to the vertical clamping rod 40 and used to drive each vertical clamping rod 40 to move toward the middle of the fixed circular plate 20.

[0019] Specifically, during operation, the workpiece to be processed is placed in the fixed circular ring plate 20. When the workpiece to be processed is square, the first drive assembly 50 drives the four square clamps 30 to move closer to each other to clamp and fix the workpiece; when the workpiece is circular, the second drive assembly 60 drives the vertical clamping rod 40 to move toward the middle of the fixed circular ring plate 20 to clamp and fix the workpiece.

[0020] The utility model relates to a fixing device for a CNC machine tool. By fixing the circular ring plate 20, the square clamping plate 30, the vertical clamping plate, the first drive assembly 50 and the second drive assembly 60, the clamping mode can be adjusted as needed according to the type of workpiece, thereby greatly improving the practicality of the fixing device and effectively meeting the growing industrial needs.

[0021] In a specific embodiment, the first driving assembly includes a power cylinder 501 mounted on the fixed annular plate 20 and connected to the square clamping plate 30 for driving the square clamping plate 30 to move toward the middle of the fixed annular plate 20 .

[0022] In a specific embodiment, the second driving assembly 60 includes a rotating annular plate 601, a driving module, a connecting block 602, a first pushing block 603, a second pushing block 604 and a reset module; the rotating annular plate 601 is installed on the outer periphery of the fixed annular plate 20 and can rotate along the fixed annular plate 20; the driving module is connected to the rotating annular plate 601 and is used to drive the rotating annular plate 601 to rotate; the connecting block 602 is installed in the fixed annular plate 20 and is connected to the vertical clamping rod 40, and the connecting block 602 moves in the fixed annular plate 20 toward the middle of the fixed annular plate 20; the first pushing block 603 is installed at one end of the connecting block 602 extending outward from the fixed annular plate 20; the second pushing block 604 is installed on one side of the first push block 603 and is connected to the rotating circular plate 601; the first push block 603 and the second push block 604 are respectively provided with corresponding first push surfaces and second push surfaces, so that when the rotating circular plate 601 rotates, the first push surface and the second push surface are driven to abut against each other, so that the first push block 603 drives the connecting block 602 to move in the fixed circular plate 20 toward the center of the fixed circular plate 20, and then drives the vertical clamping rod 40 to move toward the fixed circular plate 20; the reset module is installed on the fixed circular plate 20 and connected to the connecting block 602, which is used to drive the connecting block 602 to reset after the first push block 603 and the second push block 604 contact and push.

[0023] In a specific embodiment, an escape groove for movement of the connecting block 602 is provided in the fixed annular plate 20 , and the escape groove is arranged toward the center of the fixed annular plate 20 so that the connecting block 602 can move directionally toward the fixed annular plate 20 .

[0024] In one specific embodiment, the drive module includes a ring gear 605 mounted around the outer periphery of a rotating annular plate 601, a transmission gear 606 meshing with the ring gear 605, and a drive motor 607 connected to the transmission gear 606 for driving the transmission gear. In this embodiment, the drive motor 607 drives the transmission gear 606 to rotate, thereby driving the rotating annular plate 601 to rotate.

[0025] In a specific embodiment, the reset module includes a reset spring 608 mounted on the fixed annular plate 20, and a pressure block 609 connected to the reset spring 608 and the connecting block 602, for compressing the reset spring 608 when the connecting block 602 moves toward the center of the fixed annular plate 20. In this embodiment, when the first push block 603 drives the connecting block 602 to move toward the center of the fixed annular plate 20, the pressure block 609 is driven to compress the reset spring 608. After the first push block 603 and the second push block 604 release their push, the reset spring 608 passes through the pressure block 609, driving the connecting block 602 to reset.

[0026] The utility model relates to a fixing device for a CNC machine tool. By fixing the circular ring plate 20, the square clamping plate 30, the vertical clamping plate, the first drive assembly 50 and the second drive assembly 60, the clamping mode can be adjusted as needed according to the type of workpiece, thereby greatly improving the practicality of the fixing device and effectively meeting the growing industrial needs.

[0027] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A fixing device for a CNC machine tool, characterized in that: It includes a mounting platform, a fixed circular plate mounted on the mounting platform, four square clamps mounted in sequence in the fixed circular plate, and the four square clamps are surrounded to form a square clamping area, a vertical clamping rod mounted between two adjacent square clamps, a first driving component connected to the four square clamps and used to drive the four square clamps to move closer to each other to shrink the square clamping area, and a second driving component connected to the vertical clamping rod and used to drive each vertical clamping rod to move toward the middle of the fixed circular plate.

2. A fixing device for a CNC machine tool according to claim 1, characterized in that: The first driving assembly includes a power cylinder installed on the fixed circular plate and connected to the square clamping plate, and is used to drive the square clamping plate to move toward the middle of the fixed circular plate.

3. The fixing device for a CNC machine tool according to claim 1, wherein: The second driving assembly includes a rotating annular plate, a driving module, a connecting block, a first pushing block, a second pushing block and a reset module; the rotating annular plate is installed on the outer circumference of the fixed annular plate and can rotate along the fixed annular plate; the driving module is connected to the rotating annular plate for driving the rotating annular plate to rotate; the connecting block is installed in the fixed annular plate and is connected to the vertical clamping rod, and the connecting block moves in the fixed annular plate toward the middle of the fixed annular plate; the first pushing block is installed at one end of the connecting block extending outward from the fixed annular plate; the second pushing block is installed in the first pushing block One side of the pushing block is connected to the rotating circular ring plate; the first pushing block and the second pushing block are respectively provided with corresponding first pushing surfaces and second pushing surfaces, so that when the rotating circular ring plate rotates, the first pushing surface and the second pushing surface are driven to abut against each other, so that the first pushing block drives the connecting block to move in the fixed circular ring plate toward the center of the fixed circular ring plate, and then drives the vertical clamping rod to move toward the fixed circular ring plate; the reset module is installed on the fixed circular ring plate and connected to the connecting block, so as to drive the connecting block to reset after the first pushing block contacts and pushes with the second pushing block.

4. The fixing device for a CNC machine tool according to claim 3, characterized in that: An escape groove for the connection block to move is provided in the fixed circular ring plate, and the escape groove is arranged toward the center of the fixed circular ring plate.

5. The fixing device for a CNC machine tool according to claim 3, wherein: The driving module includes a gear ring mounted on the outer periphery of the rotating annular plate, a transmission gear meshed with the gear ring, and a driving motor connected to the transmission gear for driving the transmission gear to rotate.

6. The fixing device for a CNC machine tool according to claim 3, wherein: The reset module includes a reset spring installed on the fixed circular ring plate, and is connected to the reset spring and the connecting block, so as to compress the pressure block of the reset spring when the connecting block moves toward the center of the fixed circular ring plate.

Images