A CNC machine tool cutting mechanism

Abstract

The utility model relates to the technical field of pipe cutting slots, and more specifically, to a CNC machine tool cutting mechanism, which aims to solve the technical problem in the prior art that when fixing pipes of different sizes, ordinary clamps are not easy to adjust the coaxiality of the clamped pipes, resulting in the surface slots being prone to deviation when the pipes are formed. The utility model comprises a shell, the top of which is fixedly connected to a height adjustment bin, and the top of which is fixedly connected to a first motor. By adopting a vertical fixing method for the pipes, the coaxiality of the fixing of different pipes with the clamping column can be improved during use, and the rotation of the clamping column is conducive to the staff observing the progress and accuracy of the pipe surface treatment from the circumferential direction, further improving the quality of the cutting mechanism in forming holes and slots on the pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe cutting slots, and more specifically to a cutting mechanism for a numerical control machine tool. Background Art

[0002] The cutting mechanism of a CNC machine tool is usually a tool or a combination of tools, which is used to perform processing operations such as cutting grooves, milling, and cutting on the workpiece. The existing CNC cutting mechanism mainly relies on clamps to fix the pipes when performing surface processing (grooving or drilling holes) on the pipes. However, when fixing pipes of different sizes, it is difficult for ordinary clamps to adjust the coaxiality of the clamped pipes, resulting in deviations in the surface grooves when the pipes are formed. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a CNC machine tool cutting mechanism to solve the technical problem in the prior art that when fixing pipes of different sizes, ordinary clamps are difficult to adjust the coaxiality of the clamped pipes, resulting in deviations of the surface slots when the pipes are formed.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a CNC machine tool cutting mechanism comprises a shell, a height adjustment chamber is fixedly connected to the top of the shell, a first motor is fixedly connected to the top of the height adjustment chamber, a spindle of the first motor passes through the height adjustment chamber to the inside thereof and is fixedly connected to a first threaded rod, a first slider threadedly connected to the inner wall of the height adjustment chamber is slidably connected to the first slider, a cutting machine is fixedly connected to the top of the first slider, a second motor is fixedly connected to the end of the shell, a spindle of the second motor passes through the inside of the shell and is fixedly connected to the second threaded rod, and a first slider threadedly connected to the inner wall of the bottom of the shell is slidably connected to the second motor. The second threaded rod is threadedly connected to the second slider, and the top of the second slider is fixedly connected to the third motor, and the upper side of the main shaft of the third motor is provided with a clamping mechanism; by inserting the pipe into the clamping mechanism, the clamping mechanism can automatically fix the pipes of different sizes, and the vertical fixing method of the pipe is adopted, which can improve the coaxiality of different pipes and the clamping mechanism when in use, and the height of the cutting machine is driven by the first motor to adjust the height, and the position and angle of the pipe are driven by the second motor and the third motor, and the clamping mechanism can rotate, which is beneficial for the staff to observe the progress and accuracy of the surface treatment of the pipe from the circumferential direction, and further improve the quality of cutting holes and grooves on the pipe.

[0005] Preferably, the clamping mechanism includes a movable groove, which is located on the upper side of the third motor spindle, and the top of the shell is slidably connected to a movable plate covering the movable groove, and a clamping column with a hollow interior is rotatably arranged on the upper side of the movable plate, and the bottom of the clamping column passes through the movable plate and is fixedly connected to the spindle of the third motor, and a plurality of evenly arranged first connecting rods are hinged on the upper side of the clamping column through a torsion spring, and a push rod is hinged to the other end of the first connecting rod, and the other end of the push rod is hinged to the second connecting rod through a torsion spring, and a plurality of evenly arranged limiting grooves are provided on the outer wall of the clamping column, and a push block is slidably connected to the inner wall of the limiting groove, and an end of the second connecting rod away from the push rod is hinged to the outer wall of the push block; by directly inserting the pipe into the clamping column, the first connecting rod and the push rod are squeezed, so that the push rod can fix pipes of different sizes.

[0006] Preferably, the inner end wall of the shell is fixedly connected with a telescopic tube, the outer wall of the clamping column is provided with a plurality of air intake holes connected with the interior thereof, the outer wall of the clamping column is rotatably connected with an air intake ring which sleeves the air intake holes, and the other end of the telescopic tube is fixedly connected with the air intake ring and connected with the interior thereof, the inner wall of the clamping column is slidably connected with a push column, the limiting groove is connected with the interior of the clamping column, and one end of the push block extends into the interior of the clamping column; by squeezing the push block during the process of moving the pipe toward the cutting machine, the push block pushes the second connecting rod, so that the push rod is pushed, thereby increasing the pressure of the push rod abutting against the pipe when fixing the pipe, thereby increasing the stability when fixing the pipe.

[0007] Preferably, a pressure relief hole is provided at the top of the push column and passes through the push column, the inner wall of the pressure relief hole is slidably connected with the pressure relief column, and the bottom of the pressure relief column is inclined; by providing the pressure relief hole, it is possible to prevent the push rod from exerting excessive abutment force on the pipe, thereby causing damage to the push rod or the pipe.

[0008] Preferably, an air inlet hole is provided at the top of the push column and passes through the push column, and a sealing sheet whose side can be lifted up is fixedly connected to the bottom of the push column, and the sealing sheet covers the air inlet hole; by providing the air inlet hole, external gas can enter the gap at the bottom of the push column of the clamping column, thereby preventing the pipe from being unable to be taken out after the pipe is fixed.

[0009] Preferably, the outer wall of the push rod is fixedly connected to a rubber pad; the rubber pad is provided to prevent wear between the pipe and the push rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model inserts the pipe into the clamping mechanism so that the clamping mechanism automatically fixes the pipe, thereby enabling the cutting machine to quickly cut slots on pipes of different sizes, thereby increasing the efficiency of pipe slot cutting and reducing the labor intensity of the staff. The utility model adopts a vertical pipe fixing method, which can improve the coaxiality of different pipes and the clamping mechanism when in use. The cutting machine is driven by the first motor to adjust the height, and the pipe is driven by the second motor and the third motor to adjust the position and angle. The clamping mechanism can rotate, which is beneficial for the staff to observe the progress and accuracy of the pipe surface treatment from the circumferential direction, and further improve the quality of cutting holes and grooves on the pipe.

[0012] 2. The utility model also squeezes the push block when the pipe moves toward the cutting machine, so that the push block pushes the second connecting rod, thereby pushing the push rod, thereby increasing the pressure of the push rod abutting against the pipe when fixing the pipe, thereby increasing the stability of the pipe when fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the housing in the utility model;

[0015] Figure 3 It is a cross-sectional view of the clamping column in the utility model;

[0016] Figure 4 It is a cross-sectional view of the push column in the utility model.

[0017] Description of the numbers in the figure:

[0018] 1. Shell; 2. Height adjustment compartment; 3. First motor; 4. First threaded rod; 5. First slider; 6. Cutting machine; 7. Second motor; 8. Second threaded rod; 9. Second slider; 10. Third motor; 11. Movable groove; 12. Movable plate; 13. Clamping column; 14. First connecting rod; 15. Push rod; 16. Second connecting rod; 17. Limiting groove; 18. Push block; 19. Telescopic tube; 20. Air bleed hole; 21. Air bleed ring; 22. Push column; 23. Pressure relief hole; 24. Pressure relief column; 25. Air inlet hole; 26. Sealing sheet; 27. Rubber pad. DETAILED DESCRIPTION

[0019] like Figures 1 to 4As shown, the utility model relates to a CNC machine tool cutting mechanism, including a shell 1, a height adjustment chamber 2 is fixedly connected to the top of the shell 1, a first motor 3 is fixedly connected to the top of the height adjustment chamber 2, the spindle of the first motor 3 passes through the height adjustment chamber 2 to the inside thereof and is fixedly connected to a first threaded rod 4, a first slider 5 threadedly connected to the inner wall of the height adjustment chamber 2 is slidably connected to the first slider 5 threadedly connected to the first threaded rod 4, a cutting machine 6 is fixedly connected to the top of the first slider 5, a second motor 7 is fixedly connected to the end of the shell 1, the spindle of the second motor 7 passes through the inside of the shell 1 and is fixedly connected to the second threaded rod 8, and a first slider 5 threadedly connected to the second threaded rod 8 is slidably connected to the bottom inner wall of the shell 1 A second slider 9 is connected, and a third motor 10 is fixedly connected to the top of the second slider 9. A clamping mechanism is arranged on the upper side of the main shaft of the third motor 10. By inserting the pipe into the clamping mechanism, the clamping mechanism can automatically fix the pipes of different sizes, and the vertical fixing method of the pipe is adopted, which can improve the coaxiality of different pipes and the clamping mechanism when used. The cutting machine is driven by the first motor 3 to adjust the height, and the pipe is driven by the second motor 7 and the third motor 10 to adjust the position and angle, and the pipe rotates, which is beneficial for the staff to observe the progress and accuracy of the surface treatment of the pipe from the circumferential direction, and further improve the quality of cutting holes and grooves on the pipe.

[0020] Furthermore, the clamping mechanism includes a movable groove 11, which is located on the upper side of the main shaft of the third motor 10, and a movable plate 12 covering the movable groove 11 is slidably connected to the top of the shell 1, and a clamping column 13 with a hollow interior is rotatably arranged on the upper side of the movable plate 12, and the bottom of the clamping column 13 passes through the movable plate 12 and is fixedly connected to the main shaft of the third motor 10, and a plurality of evenly arranged first connecting rods 14 are hinged to the upper side of the clamping column 13 through a torsion spring, and a push rod 15 is hinged to the other end of the first connecting rod 14, and a second connecting rod 16 is hinged to the other end of the push rod 15 through a torsion spring, and a plurality of evenly arranged limiting grooves 17 are opened on the outer wall of the clamping column 13, and a push block 18 is slidably connected to the inner wall of the limiting groove 17, and one end of the second connecting rod 16 away from the push rod 15 is hinged to the outer wall of the push block 18; by directly inserting the pipe into the clamping column 13, the first connecting rod 14 and the push rod 15 are squeezed, so that the push rod 15 can fix pipes of different sizes.

[0021] Furthermore, a telescopic tube 19 is fixedly connected to the inner end wall of the shell 1, a plurality of air holes 20 connected to the interior of the clamping column 13 are opened on the outer wall of the clamping column 13, an air ring 21 is rotatably connected to the outer wall of the clamping column 13, and the other end of the telescopic tube 19 is fixedly connected to the air ring 21 and connected to the interior thereof, a push column 22 is slidably connected to the inner wall of the clamping column 13, a limiting groove 17 is connected to the interior of the clamping column 13, and one end of the push block 18 extends to the interior of the clamping column 13; by squeezing the push block 18 during the movement of the pipe toward the cutting machine 6, the push block 18 pushes the second connecting rod 16, so that the push rod 15 is pushed, thereby increasing the pressure of the push rod 15 abutting against the pipe when fixing the pipe, thereby increasing the stability when fixing the pipe.

[0022] Furthermore, a pressure relief hole 23 is provided at the top of the push column 22 and passes through the push column 22. A pressure relief column 24 is slidably connected to the inner wall of the pressure relief hole 23, and the bottom of the pressure relief column 24 is inclined. By providing the pressure relief hole 23, it is possible to prevent the push rod 15 from exerting excessive abutment force on the pipe, thereby causing damage to the push rod 15 or the pipe.

[0023] Furthermore, an air inlet hole 25 is provided at the top of the push column 22 to penetrate the push column 22, and a sealing sheet 26 whose side can be lifted is fixedly connected to the bottom of the push column 22, and the sealing sheet 26 covers the air inlet hole 25; by providing the air inlet hole 25, external gas can enter the gap at the bottom of the push column 22 of the clamping column 13, thereby preventing the pipe from being unable to be taken out after the pipe is fixed.

[0024] Furthermore, the outer wall of the push rod 15 is fixedly connected to a rubber pad 27 ; the rubber pad 27 is provided to prevent wear between the pipe and the push rod 15 .

[0025] Working principle: This embodiment provides a CNC machine tool cutting mechanism. When in use, the staff directly inserts the pipe that needs to be cut into the clamping column 13, so that the bottom of the pipe pushes the first connecting rod 14, so that after the first connecting rod 14 is twisted, the push rod 15 fits with the inner wall of the pipe, and at this time the second connecting rod 16 is pushed and starts to push the push block 18 to move in the limiting groove 17, so that the push rod 15 is attached to the inner wall of the pipe under the torsion of the first connecting rod 14 and its own torsion spring to fix it, and the first motor 3 rotates through the first threaded rod 4 to drive the first slider 5 to move, and the first slider 5 moves to adjust the height of the cutting machine 6, the second motor 7 rotates through the second threaded rod 8 to drive the second slider 9 to move, and the second slider 9 moves through the third motor 10 to drive the clamping column 13 to move, thereby adjusting the position of the pipe, so that the pipe moves toward the cutting machine 6, and the third motor 10 rotates to rotate the clamping column 13, thereby adjusting the angle of the pipe, thereby realizing the angle adjustment of the pipe;

[0026] When the pipe is moved toward the cutting machine 6 for slot cutting, the clamping column 13 moves and drives the air ducting ring 21 to move together. The air ducting ring 21 moves to squeeze the telescopic tube 19, so that the telescopic tube 19 discharges the internal air into the clamping column 13 through the air ducting ring 21 and the air ducting hole 20. As the amount of gas entering increases, the gas pushes the push column 22, so that the push column 22 moves up to push the push block 18, so that the push block 18 pushes the second connecting rod 16, so that the second connecting rod 16 and the first connecting rod 14 cooperate to push the push rod 15 to apply pressure, thereby increasing the contact force between the push rod 15 and the pipe, thereby increasing the stability of the pipe when the slot is cut, and improving the coaxiality of the fixation of different pipes and the clamping column 13;

[0027] It should be noted that when the air pressure inside the clamping column 13 is too high, the gas will push the pressure relief column 24 to move. After the pressure relief column 24 moves, the inclined outer wall at the bottom is not enough to seal the pressure relief hole 23. At this time, the air pressure inside the clamping column 13 is kept constant, thereby preventing the push block 18 from pushing the second connecting rod 16 too hard, causing damage between the push rod 15 and the pipe.

[0028] When the slot cutting of the pipe is completed and the clamping column 13 is reset, the telescopic tube 19 is extended to draw back the internal gas of the clamping column 13, and the gas in the clamping column 13 is discharged from the pressure relief hole 23. Therefore, the external gas will push the sealing sheet 26 from the air inlet hole 25 and enter the gap between the push column 22 and the clamping column 13, so that the telescopic tube 19 can be reset and extended, and the sealing sheet 26 covers the air inlet hole 25, which is resisted by the push column 22, so that the gas cannot reversely lift it up and flow out; in this way, after the slot cutting of the pipe is completed, the pipe can be directly pulled out of the clamping column 13.

[0029] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A CNC machine tool cutting mechanism, characterized in that: The invention comprises a shell (1), the top of which is fixedly connected to a height adjustment chamber (2), the top of which is fixedly connected to a first motor (3), the main shaft of which passes through the height adjustment chamber (2) to the inside thereof and is fixedly connected to a first threaded rod (4), the inner wall of which is slidably connected to a first slider (5) threadedly connected to the first threaded rod (4), the top of which is fixedly connected to a cutting machine (6), the end of which is fixedly connected to a second motor (7), the main shaft of which passes through the inside of the shell (1) and is fixedly connected to a second threaded rod (8), the bottom inner wall of which is slidably connected to a second slider (9) threadedly connected to the second threaded rod (8), the top of which is fixedly connected to a third motor (10), and a clamping mechanism is provided on the upper side of the main shaft of the third motor (10).

2. A CNC machine tool cutting mechanism according to claim 1, characterized in that: The clamping mechanism comprises a movable groove (11), the movable groove (11) is located on the upper side of the main shaft of the third motor (10), and the top of the housing (1) is slidably connected to a movable plate (12) covering the movable groove (11), and a clamping column (13) with a hollow interior is rotatably arranged on the upper side of the movable plate (12), the bottom of the clamping column (13) passes through the movable plate (12) and is fixedly connected to the main shaft of the third motor (10), and the upper side of the clamping column (13) is connected to the movable plate (12) and is fixedly connected to the main shaft of the third motor (10). A plurality of evenly arranged first connecting rods (14) are hingedly connected to the torsion spring, a push rod (15) is hingedly connected to the other end of the first connecting rod (14), the other end of the push rod (15) is hingedly connected to the second connecting rod (16) through the torsion spring, a plurality of evenly arranged limiting grooves (17) are opened on the outer wall of the clamping column (13), a push block (18) is slidably connected to the inner wall of the limiting groove (17), and one end of the second connecting rod (16) away from the push rod (15) is hingedly connected to the outer wall of the push block (18).

3. A CNC machine tool cutting mechanism according to claim 2, characterized in that: The inner end wall of the shell (1) is fixedly connected with a telescopic tube (19), the outer wall of the clamping column (13) is provided with a plurality of air intake holes (20) connected with the interior thereof, the outer wall of the clamping column (13) is rotatably connected with an air intake ring (21) which sleeves the air intake holes (20), and the other end of the telescopic tube (19) is fixedly connected with the air intake ring (21) and connected with the interior thereof, the inner wall of the clamping column (13) is slidably connected with a push column (22), the limiting groove (17) is connected with the interior of the clamping column (13), and one end of the push block (18) extends into the interior of the clamping column (13).

4. A CNC machine tool cutting mechanism according to claim 3, characterized in that: The top of the push column (22) is provided with a pressure relief hole (23) penetrating the push column (22), the inner wall of the pressure relief hole (23) is slidably connected with a pressure relief column (24), and the bottom of the pressure relief column (24) is inclined.

5. A CNC machine tool cutting mechanism according to claim 4, characterized in that: The top of the push column (22) is provided with an air inlet hole (25) penetrating the push column, and the bottom of the push column (22) is fixedly connected with a sealing sheet (26) whose one side can be lifted up, and the sealing sheet (26) covers the air inlet hole (25).

6. A CNC machine tool cutting mechanism according to claim 2, characterized in that: The outer wall of the push rod (15) is fixedly connected to a rubber pad (27).

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