A cutting device of a CNC cutting machine

Abstract

The invention discloses a cutting device of a numerical control cutting machine, comprising a machine tool, the machine tool is provided with a chuck and a feeding device, a cutting device is provided in front of the chuck, the cutting device comprises a moving device, a mounting plate is provided on the moving device, a cutting knife is provided on the mounting plate, a rotating device is provided on the mounting plate, a resisting device is provided at one end of the rotating device, a pressure sensor is provided in the resisting device, and a tensioning device is provided at the other end of the rotating device. The device can automatically cut a bearing blank of a specified width.

Description

Technical Field

[0001] The invention relates to the technical field of cutting devices, and in particular to a cutting device of a numerically controlled cutting machine. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.

[0003] In the production process of bearings, a cutting device is required to cut the raw steel pipe into bearing blanks of fixed width. During the cutting process, a feeding device is required to continuously feed the steel pipe forward and rotate it. During the rotation, the cutting device is used to cut the bearing blank.

[0004] However, the distance that the feeding device moves forward during the feeding process is uncertain, and rough measurements are required during cutting, which takes time. Summary of the invention

[0005] The object of the present invention is to provide a cutting device for a numerically controlled cutting machine, which can automatically cut bearing blanks of a specified width.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A cutting device of a CNC cutting machine comprises a machine tool, wherein the machine tool is provided with a chuck and a feeding device, a cutting device is provided in front of the chuck, and is characterized in that the cutting device comprises a moving device, a mounting plate is provided on the moving device, a cutting knife is provided on the mounting plate, a rotating device is provided on the mounting plate, a resisting device is provided at one end of the rotating device, a pressure sensor is provided in the resisting device, and a tensioning device is provided at the other end of the rotating device.

[0008] By adopting the above technical solution, the steel pipe is placed in the feeding device on the machine tool. The feeding device sends the steel pipe forward for a distance at regular intervals. The chuck rotates the steel pipe, and the cutting device is used to continuously cut the bearing blank from the steel pipe. The moving device can drive the cutting knife of the cutting device to move. During the movement, the holding device holds the end face of the steel pipe, and the pressure sensor receives the pressure and transmits a signal.

[0009] , stop the moving device, and then drive the cutting knife to cut along the radial direction of the steel pipe. Since the supporting device and the cutting knife are both installed on the mounting plate, the distance between the supporting device and the cutting knife remains unchanged, so that the width of the cut bearing is consistent. The tensioning device tightens one end of the rotating device so that the supporting device at the other end can be pressed on the end face of the steel pipe. Since the tensioning device can be extended and retracted, the pressure between the supporting device and the steel pipe will not be too large.

[0010] Preferably, the rotating device includes a mounting platform, the mounting platform is fixedly connected to the mounting plate, the mounting platform is fixedly connected to a cylinder, the cylinder is provided with a rotating platform, the rotating platform is provided with a circular hole, the cylinder passes through the circular hole, the circular hole is connected to a circular groove, the circular groove is provided with a disc, the disc is fixedly connected to the cylinder, and the mounting plate is fixedly connected to a stopper.

[0011] By adopting the above technical solution, the disc clamps the cylinder on the mounting table, so that the rotating table can rotate with the cylinder, and the stopper can block one side of the rotating table, so that the rotating table will be blocked by the stopper when the supporting device is at a right angle to the mounting plate, so that the tensioning device no longer drives the supporting device to move forward.

[0012] Preferably, the resisting device includes a mounting rod, which is welded to the rotating table, and one end of the mounting rod away from the rotating table is fixedly connected to a resisting rod, a pressure sensor is arranged in the resisting rod, and a ball groove is arranged at the end of the resisting rod that contacts the steel pipe, and a ball is arranged in the ball groove.

[0013] By adopting the above technical solution, the ball on the push rod contacts the cross section of the steel pipe. Since the steel pipe is rotating, the ball and the steel pipe roll, which greatly reduces the friction. When the push rod contacts the steel pipe and the pressure sensor detects the pressure, the moving device stops moving axially toward the steel pipe and moves radially toward the steel pipe, driving the cutting knife to cut the steel pipe.

[0014] Preferably, the tensioning device includes a support rod 1, which is welded to the side of the mounting plate, and a support rod 2 is welded above the end of the support rod 1 away from the mounting plate, the support rod 2 is provided with a through hole, a screw is provided in the through hole, the screw passes through the through hole, a nut is threadedly connected to the side of the screw away from the mounting plate, the nut presses against the support rod 2, the end of the screw close to the mounting plate is fixedly connected with a ring 1, and a side of the rotating table away from the mounting rod is fixedly connected with a ring 2, a tension spring is provided between the ring 1 and the ring 2, and the tension spring exerts a pulling force on the rotating table to make it press against the block.

[0015] By adopting the above technical solution, support rod 1 and support rod 2 provide support points for the tensioning device, the nut blocks one end of the screw rod, and the other end of the screw rod is pulled by the tension spring through the pull ring 1, so that the tension spring will not pull the entire screw rod over, and the tension spring pulls the ring 2 of the turntable, so that the tension spring 1 uses the ring 1 of the screw rod as a support point to pull one side of the turntable, allowing the other side to rest against the block.

[0016] Preferably, a square plate is provided on the side of the mounting platform, the square plate is fixed to the side of the mounting plate by bolts, the square plate is fixedly connected to an inclined plate, the inclined plate is inclined, and baffle plates are provided on both sides of the inclined plate.

[0017] By adopting the above technical solution, the cut bearing blank falls on the inclined plate and rolls down. The square plate increases the installation area, making it convenient to fix the inclined plate on the mounting plate. The baffle plate prevents the bearing blank from falling out from both sides of the inclined plate.

[0018] Preferably, a collection box is provided below the inclined plate.

[0019] By adopting the above technical solution, the cut bearing blanks fall into the collection box.

[0020] Preferably, universal wheels are installed at the bottom of the collection box.

[0021] By adopting the above technical solution, the universal wheel can conveniently move the collection box to the next processing station. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of an embodiment of the invention;

[0023] Figure 2 It is a schematic diagram of the structure of the resisting device of the invention;

[0024] Figure 3 A cross-sectional view of the internal structure of the rotating device of the invention;

[0025] Figure 4 It is a schematic diagram of the mounting plate structure of the invention.

[0026] 1. Machine tool; 2. Feeding device; 3. Chuck; 4. Cutting device; 5. Moving device; 6. Mounting plate; 7. Cutting knife; 8. Rotating device; 9. Retaining device; 10. Tensioning device; 11. Mounting table; 12. Cylinder; 13. Rotating table; 14. Round hole; 15. Round groove; 16. Disc; 17. Stopper; 18. Mounting rod; 19. Retaining rod; 20. Ball; 21. Ball groove; 22. Support rod one; 23. Support rod two; 24. Through hole; 25. Screw; 26. Nut; 27. Ring one; 28. Tension spring; 29. ​​Ring two; 30. Square plate; 31. Inclined plate; 32. Material blocking plate; 33. Collecting box; 34. Universal wheel. DETAILED DESCRIPTION

[0027] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0028] like Figures 1 to 4A cutting device 4 of a CNC cutting machine includes a machine tool 1, the machine tool 1 is provided with a chuck 3 and a feeding device 2, a cutting device 4 is provided in front of the chuck 3, and is characterized in that the cutting device 4 includes a moving device 5, and the moving device 5 includes two vertical screw transmission devices, so that the moving device 5 can move in four directions.

[0029] The screw transmission device above is fixedly connected with a mounting plate 6, and a cutting knife 7 is fixedly connected with the mounting plate 6. A rotating device 8 is provided on the right side of the cutting knife 7 on the mounting plate 6. The rotating device 8 includes a mounting platform 11, and the mounting platform 11 is fixedly connected to the mounting plate 6. The mounting platform 11 is fixedly connected with a cylinder 12, and the cylinder 12 is provided with a rotating platform 13. The rotating platform 13 is provided with a circular hole 14, and the cylinder 12 penetrates into the circular hole 14. The circular hole 14 is connected with a circular groove 15, and a circular disc 16 is provided in the circular groove 15. The circular disc 16 is fixedly connected to the cylinder 12, and a stopper 17 is fixedly connected to the mounting plate 6. The circular disc 16 clamps the cylinder 12 on the mounting platform 11, so that the rotating platform 13 can rotate with the cylinder 12, and the stopper 17 can block one side of the rotating platform 13, so that the rotating platform 13 is resisted by the stopper 17 when the resisting device is at a right angle to the mounting plate 6, so that the tensioning device 10 no longer drives the resisting device to move forward.

[0030] A resisting device 9 is provided at one end of the rotating table 13, and the resisting device 9 includes a mounting rod 18, which is welded to the rotating table 13. An end of the mounting rod 18 away from the rotating table 13 is fixedly connected with a resisting rod 19, and a pressure sensor is arranged in the resisting rod 19. A ball groove 21 is provided at the end of the resisting rod 19 that contacts the steel pipe, and a ball 20 is arranged in the ball groove 21. The ball 20 on the resisting rod 19 contacts the cross section of the steel pipe. Since the steel pipe is rotating, the ball 20 rolls with the steel pipe, which greatly reduces the friction. When the resisting rod 19 contacts the steel pipe and the pressure sensor detects pressure, the moving device 5 stops moving axially toward the steel pipe, and the moving device 5 moves radially toward the steel pipe, driving the cutting knife 7 to cut off the steel pipe.

[0031] A tensioning device 10 is provided at the other end of the rotating table 13, and the tensioning device 10 includes a support rod 1 22, which is welded to the side of the mounting plate 6, and a support rod 23 is welded above the end of the support rod 1 22 away from the mounting plate 6, and the support rod 23 is provided with a through hole 24, and a screw 25 is provided in the through hole 24, and the screw 25 passes through the through hole 24, and a nut 26 is threadedly connected to the side of the screw 25 away from the mounting plate 6, and the nut 26 abuts against the support rod 23, and a ring 1 27 is fixedly connected to the end of the screw 25 close to the mounting plate 6, and a side of the rotating table 13 away from the mounting rod 18 is fixedly connected to a ring 29, and a tension spring 28 is provided between the ring 1 27 and the ring 2 29, and the tension spring 28 has a pulling force on the rotating table 13 to make it abut against the stopper 17.

[0032] A square plate 30 is provided on the side of the mounting platform 11, and the square plate 30 is fixed to the side of the mounting plate 6 by bolts. The square plate 30 is fixedly connected to an inclined plate 31, and the inclined plate 31 is tilted. Baffle plates 32 are provided on both sides of the inclined plate 31, and a collecting box 33 is provided below the inclined plate 31. A universal wheel 34 is installed at the bottom of the collecting box 33. The cut bearing blanks fall on the inclined plate 31 and roll down. The square plate 30 increases the mounting area, which makes it convenient to fix the inclined plate 31 on the mounting plate 6. The baffle plates 32 prevent the bearing blanks from falling out from both sides of the inclined plate 31, and the cut bearing blanks fall into the collecting box 33.

Claims

1. A cutting device for a CNC cutting machine, comprising a machine tool (1), wherein the machine tool (1) is provided with a chuck (3) and a feeding device (2), wherein a cutting device (4) is provided in front of the chuck (3), wherein: The cutting device (4) comprises a moving device (5), the moving device (5) is provided with a mounting plate (6), the mounting plate (6) is provided with a cutting knife (7), the mounting plate (6) is provided with a rotating device (8), one end of the rotating device (8) is provided with a resisting device (9), a pressure sensor is provided in the resisting device (9), and the other end of the rotating device (8) is provided with a tensioning device (10); the rotating device (8) comprises a mounting platform (11), the mounting platform (11) is fixedly connected to the mounting plate (6), the mounting platform (11) is fixedly connected to a cylinder (12), the cylinder (12) is provided with a rotating platform (13), the The rotating table (13) is provided with a circular hole (14), the cylinder (12) penetrates into the circular hole (14), the circular hole (14) is connected to a circular groove (15), a circular disc (16) is provided in the circular groove (15), the circular disc (16) is fixedly connected to the cylinder (12), and the mounting table (11) is fixedly connected with a stopper (17); the rotating table can rotate along with the cylinder, and the stopper can block one side of the rotating table, so that the rotating table is blocked by the stopper when the support device is at a right angle to the mounting plate, so that the tensioning device no longer drives the support device to move forward; the moving device (5) includes two vertical screw transmission devices, so that the moving device (5) can be moved in four directions The support device (9) comprises a mounting rod (18), the mounting rod (18) is welded to the rotating table (13), the end of the mounting rod (18) away from the rotating table (13) is fixedly connected to a support rod (19), a pressure sensor is arranged in the support rod (19), the end of the support rod (19) in contact with the steel pipe is provided with a ball groove (21), and a ball (20) is arranged in the ball groove (21); the tensioning device (10) comprises a support rod 1 (22), the support rod 1 (22) is welded to the side of the mounting plate (6), the support rod 1 (22) is welded to the upper end of the support rod 1 (22) away from the mounting plate (6), and the support rod 2 (23) is welded to the upper end of the support rod 1 (22) away from the mounting plate (6), and the support rod 2 (23) is welded to the upper end of the support rod 1 (22) away from the mounting plate (6). 3) is provided with a through hole (24), a screw rod (25) is provided in the through hole (24), the screw rod (25) passes through the through hole (24), a nut (26) is threadedly connected to the side of the screw rod (25) away from the mounting plate (6), the nut (26) abuts against the second support rod (23), the end of the screw rod (25) close to the mounting plate (6) is fixedly connected to a first ring (27), the side of the rotating platform (13) away from the mounting rod (18) is fixedly connected to a second ring (29), a tension spring (28) is provided between the first ring (27) and the second ring (29), the tension spring (28) exerts a pulling force on the rotating platform (13) to make it abut against the stopper (17).

2. The cutting device of a CNC cutting machine according to claim 1, characterized in that: A square plate (30) is provided on the side of the mounting platform (11), and the square plate (30) is fixed to the side of the mounting plate (6) by means of bolts. The square plate (30) is fixedly connected to an inclined plate (31), and the inclined plate (31) is arranged at an angle, and baffle plates (32) are provided on both sides of the inclined plate (31).

3. The cutting device of a CNC cutting machine according to claim 2, characterized in that: A collecting box (33) is provided below the inclined plate (31).

4. The cutting device of a CNC cutting machine according to claim 3, characterized in that: Universal wheels (34) are installed at the bottom of the collection box (33).

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