Clamping structure for numerical control lathe

Abstract

The utility model relates to the technical field of clamping structures for numerically controlled lathes, in particular to a clamping structure for a numerically controlled lathe, which comprises a worktable, mounting holes are formed in positions, close to four corners, of the upper end of the worktable, a movable plate is arranged on one side of the upper end of the worktable, and a fixed plate is fixedly mounted on the other side of the upper end of the worktable. Clamping assemblies are arranged on the opposite sides of the movable plate and the fixed plate correspondingly, each clamping assembly comprises a disc, six rectangular grooves are annularly formed in the outer surface of one side of each disc, guide rods are arranged in the rectangular grooves, and arc-shaped clamping pads are fixedly mounted at the positions, located outside the discs, of one ends of the guide rods; a driven gear disc is movably installed at the position, close to the center, of the front end of the disc, and six arc-shaped through grooves are formed in one side of the driven gear disc. The clamping structure for the numerical control lathe is good in clamping effect and capable of preventing workpieces from being damaged.

Description

Technical Field

[0001] The present application relates to the technical field of clamping structures for CNC lathes, and in particular to a clamping structure for CNC lathes. Background Art

[0002] Machine tools are not only important tools for human production labor, but also reflect the level of development of social productivity. CNC lathes are widely used CNC processing equipment that automatically and accurately processes objects installed on them through pre-edited programs.

[0003] The clamping device on a CNC lathe generally refers to a fixture, which is used to fix the object to be processed so that it can be accurately processed by the turning tool of the CNC lathe.

[0004] When the existing CNC lathe processes long-axis parts, when the tailstock presses against the long-axis workpiece to be processed, the workpiece to be processed that rotates at high speed will shake eccentrically, resulting in reduced accuracy in processing round tube-like objects. The round tube-like objects may also be squeezed and deformed due to the friction on both sides. Therefore, in order to solve the above-mentioned problems, an adjustable clamping device for a CNC lathe is proposed. Therefore, the technical personnel in this field provide a clamping structure for a CNC lathe to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the present application provides a clamping structure for a CNC lathe.

[0006] The present application provides a clamping structure for a CNC lathe using the following technical solution:

[0007] A clamping structure for a CNC lathe comprises a workbench, wherein mounting holes are provided at the upper end of the workbench near the four corners, a movable plate is provided at the upper end of the workbench near one side, a fixed plate is fixedly installed at the upper end of the workbench near the other side, a clamping assembly is provided at the opposite sides of the movable plate and the fixed plate, the clamping assembly comprises a disc, six rectangular grooves are provided in an annular manner on the outer surface of one side of the disc, a guide rod is provided inside the rectangular groove, an arc-shaped clamping pad is fixedly installed at one end of the guide rod on the outside of the disc, a driven gear disc is movably installed at the front end of the disc near the center, and six arc-shaped through grooves are provided on one side of the driven gear disc.

[0008] Preferably, a limiting guide column is fixedly mounted on one side of the guide rod, and the limiting guide column passes through the interior of the arc-shaped through groove.

[0009] Preferably, a driving gear plate is arranged outside the disc, and the driving gear plate is driven by a servo motor, and the servo motor is fixed outside the disc.

[0010] Preferably, two telescopic cylinders are fixedly mounted on one side of the workbench, an L-shaped pillar is fixedly mounted on one end of the telescopic cylinder, and one end of the L-shaped pillar is fixedly connected to one side of the movable plate.

[0011] Preferably, a rotating motor is fixedly mounted on one side of the movable plate and the fixed plate relative to each other, and a circular groove is formed on one side of the output shaft of the rotating motor.

[0012] Preferably, a mounting post is fixedly mounted on one side of the disc, and a circular hole is fixedly mounted on the outside of the mounting post near one end.

[0013] Preferably, the mounting column passes through the interior of the circular groove, and the mounting column is fixedly connected to the output shaft via a limiting bolt, and the limiting bolt passes through the circular hole.

[0014] To summarize, the present application includes the following beneficial technical effects: through the setting of the clamping assembly, after the limiting guide column moves inside the arc-shaped through groove, it drives the guide rod and the arc-shaped clamping pad to expand outward, thereby making the arc-shaped clamping pad contact the inner wall of the circular tube for tensioning, thereby completing the fixation of the circular tube. The setting of the limiting bolt makes it easy to remove the entire disc, so that discs of different diameters can be replaced, thereby more effectively matching circular tubes of different inner diameters for fixation. Compared with the traditional positioning method of contacting the two sides of the circular tube, the positioning assembly has a better protective effect on the workpiece, and the workpiece will not rotate eccentrically, and the processing accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a clamping structure for a CNC lathe in an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the structure of a clamping assembly of a clamping structure for a CNC lathe in an embodiment of the present application;

[0017] Figure 3 It is a partial structural schematic diagram of a clamping structure for a CNC lathe in an embodiment of the present application.

[0018] Explanation of the accompanying drawings: 1. Workbench; 2. Mounting hole; 3. Telescopic cylinder; 4. L-shaped pillar; 5. Movable plate; 6. Clamping assembly; 7. Fixed plate; 8. Disc; 9. Rectangular groove; 10. Guide rod; 11. Arc-shaped clamping pad; 12. Driven gear plate; 13. Arc-shaped through groove; 14. Limit guide column; 15. Driving gear plate; 16. Mounting column; 17. Rotating motor; 18. Circular groove; 19. Limit bolt; 20. Circular hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-Figure 3 As shown, a clamping structure for a CNC lathe comprises a workbench 1, wherein mounting holes 2 are provided at the upper end of the workbench 1 near the four corners, a movable plate 5 is provided near one side of the upper end of the workbench 1, a fixed plate 7 is fixedly installed near the other side of the upper end of the workbench 1, a clamping assembly 6 is provided on the opposite sides of the movable plate 5 and the fixed plate 7, the clamping assembly 6 comprises a disc 8, six rectangular grooves 9 are provided in an annular manner on the outer surface of one side of the disc 8, a guide rod 10 is provided inside the rectangular groove 9, one end of the guide rod 10 is located outside the disc 8 and an arc-shaped clamping pad 11 is fixedly installed, a driven gear disc 12 is movably installed near the center position of the front end of the disc 8, and six arc-shaped through grooves 13 are provided on one side of the driven gear disc 12, firstly, the workbench 1 and the CNC machine tool are fixed through the mounting holes 2, when processing round tube objects, the round tube is sleeved on the outside of the two discs 8 through the provided clamping assembly 6, the telescopic cylinder 3 is started, and the movable plate 5 and the fixed plate 7 are in suitable positions.

[0021] In this embodiment, a limiting guide post 14 is fixedly mounted on one side of the guide rod 10 , and the limiting guide post 14 passes through the interior of the arc-shaped through groove 13 .

[0022] In this embodiment, a driving gear plate 15 is provided on the outside of the disc 8. The driving gear plate 15 is driven by a servo motor, and the servo motor is fixed on the outside of the disc 8. After the servo motor is started to rotate the driving gear plate 15, the driving gear plate 15 is engaged with the driven gear plate 12, thereby rotating the driven gear plate 12. After the limiting guide column 14 moves inside the arc-shaped through groove 13, it drives the guide rod 10 and the arc-shaped clamping pad 11 to expand outward, thereby causing the arc-shaped clamping pad 11 to contact the inner wall of the circular tube for tensioning, thereby completing the fixation of the circular tube.

[0023] In this embodiment, two telescopic cylinders 3 are fixedly installed on one side of the workbench 1 , an L-shaped pillar 4 is fixedly installed on one end of the telescopic cylinder 3 , and one end of the L-shaped pillar 4 is fixedly connected to one side of the movable plate 5 .

[0024] In this embodiment, a rotary motor 17 is fixedly mounted on one side of the movable plate 5 and the fixed plate 7 , and a circular groove 18 is formed on one side of the output shaft of the rotary motor 17 .

[0025] In this embodiment, a mounting column 16 is fixedly installed on one side of the disc 8, and a circular hole 20 is fixedly installed on the outside of the mounting column 16 near one end. When the rotating motor 17 is started, the disc 8 is driven to rotate, thereby completing the rotation of the circular tube, so that the CNC machine tool can process the circular tube.

[0026] In this embodiment, the mounting column 16 passes through the interior of the circular groove 18, and the mounting column 16 is fixedly connected to the output shaft by a limiting bolt 19, and the limiting bolt 19 passes through the circular hole 20. The setting of the limiting bolt 19 facilitates the removal of the entire disc 8, so that the disc 8 of different diameters can be replaced, and then the circular tubes of different inner diameters can be more effectively matched for fixation.

[0027] The implementation principle of the clamping structure for a CNC lathe in the embodiment of the present application is as follows: first, the workbench 1 is fixed to the CNC machine tool through the mounting hole 2. When processing a round tube object, the round tube is sleeved on the outside of the two discs 8 through the provided clamping assembly 6, and the telescopic cylinder 3 is started to make the movable plate 5 and the fixed plate 7 in a suitable position. After the servo motor is started to rotate the active gear plate 15, the active gear plate 15 is meshed with the driven gear plate 12, thereby rotating the driven gear plate 12, and the limiting guide column After 14 moves inside the arc-shaped through groove 13, it drives the guide rod 10 and the arc-shaped clamping pad 11 to expand outward, so that the arc-shaped clamping pad 11 is pressed against the inner wall of the circular tube for tensioning, and the circular tube is fixed. The rotating motor 17 is started, and after driving the disc 8 to rotate, the rotation of the circular tube is completed, so that the CNC machine tool can process the circular tube. The setting of the limit bolt 19 makes it easy to remove the entire disc 8, so that the disc 8 of different diameters can be replaced, and then the circular tubes of different inner diameters can be more effectively matched for fixation.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0029] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A clamping structure for a CNC lathe, comprising a workbench (1), wherein mounting holes (2) are provided at the upper end of the workbench (1) near four corners, a movable plate (5) is provided near one side of the upper end of the workbench (1), a fixed plate (7) is fixedly installed near the other side of the upper end of the workbench (1), and clamping components (6) are provided on opposite sides of the movable plate (5) and the fixed plate (7), characterized in that: The clamping assembly (6) comprises a disc (8), one side of the outer surface of which is provided with six rectangular grooves (9) in an annular shape, a guide rod (10) is arranged inside the rectangular groove (9), one end of the guide rod (10) is located outside the disc (8) and is fixedly mounted with an arc-shaped clamping pad (11), a driven gear disc (12) is movably mounted near the center position at the front end of the disc (8), and one side of the driven gear disc (12) is provided with six arc-shaped through grooves (13).

2. The clamping structure for a CNC lathe according to claim 1, characterized in that: A limiting guide column (14) is fixedly mounted on one side of the guide rod (10), and the limiting guide column (14) passes through the interior of the arc-shaped through groove (13).

3. The clamping structure for a CNC lathe according to claim 1, characterized in that: A driving gear plate (15) is arranged outside the circular disc (8), and the driving gear plate (15) is driven by a servo motor, which is fixed outside the circular disc (8).

4. The clamping structure for a CNC lathe according to claim 1, characterized in that: Two telescopic cylinders (3) are fixedly mounted on one side of the workbench (1), an L-shaped support (4) is fixedly mounted on one end of the telescopic cylinder (3), and one end of the L-shaped support (4) is fixedly connected to one side of a movable plate (5).

5. The clamping structure for a CNC lathe according to claim 1, characterized in that: A rotating motor (17) is fixedly mounted on one side of the movable plate (5) and the fixed plate (7) opposite to each other, and a circular groove (18) is provided on one side of the output shaft of the rotating motor (17).

6. The clamping structure for a CNC lathe according to claim 1, characterized in that: A mounting post (16) is fixedly mounted on one side of the disk (8), and a circular hole (20) is fixedly mounted on the outside of the mounting post (16) near one end.

7. The clamping structure for a CNC lathe according to claim 6, characterized in that: The mounting column (16) passes through the interior of the circular groove (18), and the mounting column (16) is fixedly connected to the output shaft via a limiting bolt (19), and the limiting bolt (19) passes through the circular hole (20).

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