Clamp for numerical control machine tool

Abstract

The clamp for the numerical control machine tool comprises a box body and a connecting plate, one side of the connecting plate is fixedly connected with a support, a vertical rod penetrates through the support, one end of the vertical rod is rotatably connected with the support, the upper end of the vertical rod is fixedly connected with a vertical plate, the outer side of the vertical plate is sleeved with a square pipe, and one end of the square pipe is fixedly connected with a transverse plate. A limiting rod is fixedly connected to the lower end of the transverse plate, a first limiting hole is formed in the connecting plate, a second limiting hole is formed in the support, a rotating disc is fixedly connected to the upper end of the vertical plate, a first magnet block is arranged at the upper end of the transverse plate, a second magnet block is arranged on the rotating disc, and two fixing plates are fixedly connected to the vertical rod. A square clamping plate and an arc-shaped clamping plate are fixedly connected to the two fixing plates correspondingly, blocky workpieces can be fixed through the device, tubular workpieces can be well fixed, a numerical control machine tool and a clamp do not need to be replaced, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures for numerically controlled machine tools, in particular to a fixture for numerically controlled machine tools. Background Art

[0002] With the rapid development of industry, the number and types of mechanical processing are becoming more and more. In the process of industrial production, CNC machine tools are often used to process some products. When machine tools are used to process products, machine tool fixtures are used to clamp the workpiece products to facilitate processing operations.

[0003] As disclosed in the utility model with authorization announcement number CN212286750U, a clamp for CNC machine tools includes a base, a first slide groove is provided inside the base, a cross bar is installed inside the first slide groove, a first slider is sleeved on the outside of the cross bar, a spring is installed on one side of the first slider, a telescopic rod is installed on the front of the first slider, a moving block is installed on the outside of the telescopic rod, a clamping block is installed on the top of the moving block, a groove is provided on one side of the base, a clamping strip is installed on the top of the inner wall of the groove, a first clamping rod is fixedly installed on the top of the first slider, a second clamping rod is fixedly installed on one end of the top of the base, and second slide grooves are provided inside the first clamping rod and the second clamping rod. The clamp for CNC machine tools has the advantages of being able to adjust the clamping position according to the size of the workpiece and not having to always replace the clamp according to the size of the workpiece, solving the problem that common CNC machine tool clamps cannot be adjusted according to the size of the object and that replacing the clamps wastes a lot of time. However, when the device is in use, when it is necessary to clamp a tubular workpiece, the clamping effect of the clamping plate on the device is not good enough, and it is even necessary to replace the machine tool and the clamp, which is time-consuming and labor-intensive. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a clamp for a CNC machine tool, which can solve the technical problem that when the device is in use, when it is necessary to clamp a tubular workpiece, the clamping effect of the clamping plate on the device is not good enough, and even the machine tool and the clamp need to be replaced, which is time-consuming and labor-intensive.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a clamp for a CNC machine tool, comprising a box body and a connecting plate, one side of the connecting plate is fixedly connected to a bracket, the bracket is penetrated by a vertical rod, and one end of the vertical rod is rotatably connected to the bracket, the upper end of the vertical rod is fixedly connected to the vertical plate, the outer side of the vertical plate is sleeved with a square tube, one end of the square tube is fixedly connected to a horizontal plate, the lower end of the horizontal plate is fixedly connected to a limiting rod, a first limiting hole is provided on the connecting plate, a second limiting hole is provided on the bracket, and the upper end of the vertical plate is fixedly connected to a turntable, a first magnet block is arranged on the upper end of the horizontal plate, a second magnet block is arranged on the turntable, and two fixing plates are fixedly connected to the vertical rod, and a square clamp and an arc clamp are respectively fixedly connected to the two fixing plates.

[0006] As a preferred technical solution of the utility model, one side of the square clamping plate and the arc clamping plate are both provided with an anti-slip layer.

[0007] As a preferred technical solution of the present utility model, the angle formed by the first limiting hole and the second limiting hole with respect to the vertical rod is ninety degrees.

[0008] As a preferred technical solution of the utility model, a motor is arranged on one side of the box body, the output end of the motor passes through the box body and is fixedly connected to a bidirectional screw rod, and one end of the bidirectional screw rod is rotatably connected to the inner wall of the box body.

[0009] As a preferred technical solution of the present utility model, a limiting groove is provided at the upper end of the box body.

[0010] As a preferred technical solution of the utility model, a pair of limit plates are threadedly connected to the bidirectional screw rod, the limit plates penetrate the limit slots and extend to the outside of the box body, and one end of the limit plates is fixedly connected to a connecting plate.

[0011] Compared with the prior art, the beneficial effect that the utility model can achieve is: by pulling the horizontal plate upwards, the limiting rod at the lower end of the horizontal plate leaves the first limiting hole, and at the same time the square tube moves upward along the vertical plate until the first magnet block at the upper end of the horizontal plate and the second magnet block on the turntable are attracted to each other, thereby fixing the horizontal plate, and then by rotating the turntable, the turntable drives the vertical plate and the vertical rod to rotate ninety degrees, thereby causing the two arc-shaped clamping plates to rotate ninety degrees, so that the two arc-shaped clamping plates are face to face, and then the horizontal plate is pulled downwards, so that the first magnet block at the upper end of the horizontal plate is separated from the second magnet block on the turntable, so that the limiting rod at the lower end of the horizontal plate moves downwards and is inserted into the second limiting hole, and the vertical plate and the vertical rod are fixed. Through this device, not only the block-shaped workpiece can be fixed, but also the tubular workpiece can be well fixed, without the need to replace the CNC machine tool and the fixture, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1This is a schematic diagram of the internal structure of the box of the utility model;

[0013] Figure 2 This is a schematic diagram of the top view of the box structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the overall structure of the connecting plate and the bracket of the utility model;

[0015] Figure 4 This is a schematic diagram of the side view structure of the connecting plate and the bracket of the utility model;

[0016] Among them: 1. Box body; 2. Connecting plate; 3. Bracket; 4. Vertical rod; 5. Vertical plate; 6. Square tube; 7. Horizontal plate; 8. Limit rod; 9. First limit hole; 10. Second limit hole; 11. Turntable; 12. First magnet block; 13. Second magnet block; 14. Fixed plate; 15. Square clamping plate; 16. Arc clamping plate; 17. Anti-slip layer; 18. Motor; 19. Bidirectional screw rod; 20. Limit plate; 21. Limit groove. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0018] Example

[0019] Please refer to Figure 1-Figure 3 As shown, the utility model provides a clamp for a CNC machine tool, one side of the square clamp plate 15 and the arc clamp plate 16 are both provided with an anti-skid layer 17, and the anti-skid layer 17 can better clamp and fix the workpiece, the angle between the first limiting hole 9 and the second limiting hole 10 with respect to the vertical rod 4 is ninety degrees, and the first limiting hole 9 and the second limiting hole 10 are the same size, a motor 18 is provided on one side of the box body 1, the output end of the motor 18 passes through the box body 1 and is fixedly connected to a bidirectional screw rod 19, one end of the bidirectional screw rod 19 is rotatably connected to the inner wall of the box body 1, a limiting groove 21 is provided at the upper end of the box body 1, a pair of limiting plates 20 are threadedly connected to the bidirectional screw rod 19, the limiting plate 20 passes through the limiting groove 21 and extends to the outside of the box body 1, and one end of the limiting plate 20 is fixedly connected to the connecting plate 2.

[0020] When in use, start the motor 18, the motor 18 drives the bidirectional screw 19 to rotate, and the rotation of the bidirectional screw 19 drives the limit plate 20 to move. The limit plate 20 can move more stably under the limiting action of the limit groove 21, and the limit plate 20 drives the connecting plate 2 to move, and the movement of the connecting plate 2 indirectly drives the square clamp 15 to move, so that the two square clamps 15 can move toward each other and clamp the block workpiece.

[0021] As a further implementation of this embodiment, Figure 1-Figure 4 As shown, a bracket 3 is fixedly connected to one side of the connecting plate 2, a vertical rod 4 passes through the bracket 3, and one end of the vertical rod 4 is rotatably connected to the bracket 3, a vertical plate 5 is fixedly connected to the upper end of the vertical rod 4, a square tube 6 is sleeved on the outer side of the vertical plate 5, one end of the square tube 6 is fixedly connected to a horizontal plate 7, and a limiting rod 8 is fixedly connected to the lower end of the horizontal plate 7, a first limiting hole 9 is opened on the connecting plate 2, a second limiting hole 10 is opened on the bracket 3, and a turntable 11 is fixedly connected to the upper end of the vertical plate 5, a first magnet block 12 is arranged on the upper end of the horizontal plate 7, a second magnet block 13 is arranged on the turntable 11, and two fixed plates 14 are fixedly connected to the vertical rod 4, and the angle formed by the two fixed plates 14 with respect to the vertical rod 4 is ninety degrees, and a square clamping plate 15 and an arc clamping plate 16 are fixedly connected to the two fixed plates 14 respectively.

[0022] When in use, by pulling the cross plate 7 upwards, the limiting rod 8 at the lower end of the cross plate 7 is separated from the first limiting hole 9, and the square tube 6 is moved upward along the vertical plate 5 until the first magnet block 12 at the upper end of the cross plate 7 and the second magnet block 13 on the turntable 11 are attracted to each other, thereby fixing the cross plate 7, and then by rotating the turntable 11, the turntable 11 drives the vertical plate 5 and the vertical rod 4 to rotate ninety degrees, thereby making the two arc clamping plates 16 rotate ninety degrees, making the two arc clamping plates 16 face each other, and then pulling the cross plate 7 downwards, so that the first magnet block 12 at the upper end of the cross plate 7 is separated from the second magnet block 13 on the turntable 11, so that the limiting rod 8 at the lower end of the cross plate 7 moves downwards and is inserted into the second limiting hole 10, and the vertical plate 5 and the vertical rod 4 are fixed, thereby making the square clamping plate 15 and the arc clamping plate 16 fixed.

[0023] The specific working principle is as follows: when in use, the motor 18 is started, and the motor 18 drives the bidirectional screw rod 19 to rotate, and the bidirectional screw rod 19 rotates to drive the limit plate 20 to move. The limit plate 20 can move more stably under the limiting action of the limit groove 21, and the limit plate 20 drives the connecting plate 2 to move, and the movement of the connecting plate 2 drives the square clamping plate 15 to move indirectly, so that the two square clamping plates 15 can move toward each other and clamp the block workpiece. When it is necessary to clamp and fix the tubular workpiece, the cross plate 7 can be pulled upward to make the limit rod 8 at the lower end of the cross plate 7 leave the first limit hole 9, and at the same time, the square tube 6 moves upward along the vertical plate 5, and the vertical plate 5 is tightly fitted with the inner wall of the square tube 6 until the first magnet block 12 at the upper end of the cross plate 7 and the second magnet block 13 on the turntable 11 are attracted to fix the cross plate 7, and then the turntable 11 is rotated, and the turntable 11 drives the vertical plate 5 and the vertical rod 4 to rotate ninety degrees, thereby causing the two arc clamping plates 16 to rotate ninety degrees. The two arc clamping plates 16 face each other, and then the cross plate 7 is pulled downward, so that the first magnet block 12 at the upper end of the cross plate 7 is separated from the second magnet block 13 on the turntable 11, so that the limiting rod 8 at the lower end of the cross plate 7 moves downward and is inserted into the second limiting hole 10, and the vertical plate 5 and the vertical rod 4 are fixed, so that the positions of the square clamping plate 15 and the arc clamping plate 16 can be fixed. Finally, the motor 18 is started again, and the motor 18 drives the two-way screw rod 19 to rotate, and the two-way screw rod 19 rotates to drive the limiting plate 20 to move. The limiting plate 20 can move more stably under the limiting action of the limiting groove 21, and the limiting plate 20 drives the connecting plate 2 to move, and the movement of the connecting plate 2 drives the arc clamping plate 16 to move indirectly, so that the two arc clamping plates 16 can move toward each other and clamp the tubular workpiece. Through this device, not only the block workpiece can be fixed, but also the tubular workpiece can be well fixed, without the need to replace the CNC machine tool and the fixture, and the processing efficiency is improved.

[0024] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A fixture for a CNC machine tool, comprising a box (1) and a connecting plate (2), characterized in that: One side of the connecting plate (2) is fixedly connected to a bracket (3), a vertical rod (4) passes through the bracket (3), and one end of the vertical rod (4) is rotatably connected to the bracket (3), the upper end of the vertical rod (4) is fixedly connected to a vertical plate (5), the outer side of the vertical plate (5) is sleeved with a square tube (6), one end of the square tube (6) is fixedly connected to a horizontal plate (7), the lower end of the horizontal plate (7) is fixedly connected to a limit rod (8), and the connecting plate (2) is provided with A first limiting hole (9) is formed on the bracket (3), a second limiting hole (10) is formed on the bracket (3), and a rotating disk (11) is fixedly connected to the upper end of the vertical plate (5), a first magnet block (12) is arranged on the upper end of the horizontal plate (7), a second magnet block (13) is arranged on the rotating disk (11), and two fixing plates (14) are fixedly connected to the vertical rod (4), and a square clamping plate (15) and an arc clamping plate (16) are fixedly connected to the two fixing plates (14) respectively.

2. A fixture for a CNC machine tool according to claim 1, characterized in that: One side of the square clamping plate (15) and the arc clamping plate (16) is provided with an anti-slip layer (17).

3. A fixture for a CNC machine tool according to claim 1, characterized in that: The angle formed by the first limiting hole (9) and the second limiting hole (10) with respect to the vertical rod (4) is ninety degrees.

4. The fixture for a CNC machine tool according to claim 1, characterized in that: A motor (18) is provided on one side of the box body (1), the output end of the motor (18) passes through the box body (1) and is fixedly connected to a bidirectional screw rod (19), and one end of the bidirectional screw rod (19) is rotatably connected to the inner wall of the box body (1).

5. The fixture for a CNC machine tool according to claim 1, characterized in that: A limiting groove (21) is provided at the upper end of the box body (1).

6. A fixture for a CNC machine tool according to claim 4, characterized in that: A pair of limit plates (20) are threadedly connected to the bidirectional screw rod (19); the limit plates (20) penetrate the limit grooves (21) and extend to the outside of the box body (1); and one end of the limit plate (20) is fixedly connected to a connecting plate (2).

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