CN109986218B

CN109986218B - Groove cutting machine

Info

Publication number: CN109986218B
Application number: CN201910329194.2A
Authority: CN
Inventors: 吴让大; 杨忠明; 石志敏
Original assignee: Pentium Laser Zhejiang Co ltd
Current assignee: Pentium Laser Zhejiang Co ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2023-08-18
Anticipated expiration: 2039-04-23
Also published as: CN109986218A

Abstract

The invention relates to a groove cutting machine, which comprises a machine tool, wherein a groove cutter is arranged on the machine tool, an X-axis moving device, a Y-axis moving device and a Z-axis moving device are arranged on a rack, the Z-axis moving device comprises a Z-axis bracket, the groove cutter comprises a Z-axis protective cover which is in sliding connection with the Z-axis bracket, and a rotating assembly is arranged in the Z-axis protective cover; the rotating assembly comprises a fixed block fixedly connected with the Z-axis protective cover, an A-axis motor is arranged in the fixed block, the A-axis motor is connected with a rotating block, a crossed roller bearing is arranged between the fixed block and the rotating block, the rotating block is fixedly connected with a cylinder, a B-axis motor is arranged in the cylinder, the B-axis motor is connected with a cutting head support, and the cutting head support is fixedly connected with a cutting head. The invention has the advantages of improving the processing efficiency and the processing precision of the welded parts.

Description

Groove cutting machine

Technical Field

The invention relates to the technical field of laser equipment installation and welding, in particular to a groove cutting machine.

Background

In recent years, with the popularization and application of clean energy, industries such as wind power, water power and the like in China are rapidly developed, and a large number of sector plates and hyperbolic plates with grooves in various forms on the periphery need to be cut in the processing process of wind power towers and water pressure pipes. The processing method adopted at present is to process the outer contours of the sector plates and the hyperbolas by using a numerical control cutting machine, and then process the grooves of the periphery of the workpiece in different forms by adopting manual and semi-automatic trolleys, so that the production efficiency is low, the labor intensity is high, the thermal deformation of the product is large, the processing precision and the product quality of the product can not meet the technical requirements of the subsequent automatic welding, and the problem to be solved at present is that the groove processing of the part is directly completed when the plate is blanked, and the technology is not yet improved at present.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide a groove cutting machine which has the advantage of improving the processing efficiency and the accuracy of welded parts.

In order to achieve the above purpose, the present invention provides the following technical solutions: the groove cutting machine comprises a machine tool, wherein a groove cutter is arranged on the machine tool, an X-axis moving device, a Y-axis moving device and a Z-axis moving device are arranged on a rack, the Z-axis moving device comprises a Z-axis support, the groove cutter comprises a Z-axis protective cover which is in sliding connection with the Z-axis support, and a rotating assembly is arranged in the Z-axis protective cover; the rotating assembly comprises a fixed block fixedly connected with the Z-axis protective cover, an A-axis motor is arranged in the fixed block, the A-axis motor is connected with a rotating block, a crossed roller bearing is arranged between the fixed block and the rotating block, the rotating block is fixedly connected with a cylinder, a B-axis motor is arranged in the cylinder, the B-axis motor is connected with a cutting head support, and the cutting head support is fixedly connected with a cutting head.

Through adopting above-mentioned technical scheme, drive A axle motor can drive the turning block and rotate and then drive the drum and rotate, the rotation of drum can drive the rotation of cutting head support and then drive the cutting head and rotate, thereby let the cutting head have the axial lead pivoted function of the play axle of round A axle motor, in addition this in-process can also let the cutting head have the rotation function of another direction namely, B axle motor drive cutting head support rotate and then drive the cutting head and rotate, thereby let the cutting head can rotate round the axial lead of the play axle of B axle motor, it is worth noting that A axle motor and B axle motor can start simultaneously, thereby let the cutting head can rotate on two planes simultaneously and carry out curved surface motion promptly, same A axle motor and B axle motor can separate and move, adapt to different behavior.

The invention is further provided with: the top of Z axle is provided with the cable tow chain that is used for pulling Z axle protection casing, circular 3D tow chain is selected to the cable tow chain.

By adopting the technical scheme, the 3D drag chain can pull the Z-axis protective cover to move.

The invention is further provided with: the Y-axis moving device comprises a Y-axis sliding seat fixedly connected with one side of a Z-axis support, a Y-axis motor is arranged in the Y-axis sliding seat, an outlet shaft of the Y-axis motor penetrates through the Y-axis sliding seat, a Y-axis gear is arranged on an outlet shaft of the Y-axis motor, a plurality of Y-axis guide rail sliding blocks are fixedly connected with one side of the Z-axis support, far away from a Z-axis protective cover, of the Z-axis support, the plurality of Y-axis guide rail sliding blocks are slidably connected with the same cross beam, and a Y-axis rack meshed with the Y-axis gear is arranged on the upper side of the cross beam.

Through adopting above-mentioned technical scheme, Y axle motor can drive Y axle gear and rotate and then drive Y axle rack and remove around self axial lead, and when the crossbeam was fixed, Y axle rack also will be motionless, and Y axle gear will remove and then drive Y axle motor and remove along the length direction of Y axle rack this moment, consequently can realize the removal of cutting head.

The invention is further provided with: the X-axis moving device comprises an X-axis sliding block fixedly connected with the cross beam, an X-axis motor is arranged in the X-axis sliding block, an X-axis gear is connected with the X-axis motor, an X-axis rack meshed with the X-axis gear is arranged on the rack, and the X-axis rack is distributed along one side of the rack.

Through adopting above-mentioned technical scheme, X axle motor can drive X axle gear and rotate around self axial lead, and X axle gear will produce the extrusion with X axle rack, and when X axle rack was motionless, X axle gear will be along the length direction removal of X axle rack and then drive X axle motor and remove along the direction of X axle rack, realizes the purpose that the crossbeam removed.

The invention is further provided with: the Z-axis protective cover is fixedly connected with a plurality of concave sliding blocks, each sliding block is integrally connected with a convex block on the inner side, and the Z-axis support is integrally connected with a slideway which is clamped with the sliding blocks.

Through adopting above-mentioned technical scheme, when Z axle protection casing moved along Z axle support, the sliding block would be along the length direction of Z axle support removal, thereby and the lug is in the inside of slide all the time and lets the sliding block unable and the slide separation to realize Z axle protection casing and Z axle support sliding connection's purpose.

The invention is further provided with: the Z-axis support is provided with a first driving motor in a penetrating mode, one end of the first driving motor is sleeved with a gear, and the Z-axis protective cover is fixedly connected with a Z-axis gear bar meshed with the gear.

Through adopting above-mentioned technical scheme, first driving motor can drive the gear rotation and then drive the removal of Z axle gear strip, and the removal of Z axle gear strip can drive the removal of Z axle protection casing.

The invention is further provided with: one side of Z axle support an organic whole is connected with the backup pad, one side fixedly connected with locating piece of backup pad, locating piece fixedly connected with fixed axle, the fixed axle has cup jointed the swivel becket, the swivel becket wear to be equipped with swivel becket threaded connection's extrusion pole, the one end fixedly connected with extrusion arc board that the extrusion pole is in the swivel becket.

Through adopting above-mentioned technical scheme, pass the backup pad with 3D tow chain, let the backup pad play the purpose that supports 3D tow chain, if there is not the backup pad, 3D tow chain probably appears the condition of self winding because overlength. In addition, in order to increase the connection tightness of the 3D drag chain and the supporting plate, the rotary extrusion rod further drives the extrusion arc plate to move until the extrusion arc plate can extrude the 3D drag chain, the gap of the 3D drag chain in the supporting plate is reduced, and then the shaking of the 3D drag chain is reduced.

The invention is further provided with: the first driving motor selects a harmonic speed reducer.

By adopting the technical scheme, the precision and the torque can be improved by selecting the harmonic reducer.

The invention is further provided with: one side of the Z-axis support, which is away from the Z-axis protective cover, is fixedly connected with a motor protective cover, an electromagnetic valve, a proportional valve and a PCB (printed circuit board) are arranged in the motor protective cover, an ELENBOX control box is arranged below the motor protective cover, and two square openings are formed in the motor protective box.

By adopting the technical scheme, the ELENBOX control box is mainly used for controlling parameter signals of the cutting head. Solenoid valves are mainly type parameters that control the gas. The proportional valve is used for remotely controlling the pressure of the gas proportionally, and the PCB mainly performs filtering. The two openings are mainly connected with two drag chains, one drag chain is used for running the optical fiber cable, and the other drag chain is used for running the air pipe and the cable.

The invention is further provided with: a limiting and clamping device is arranged in the Z-axis protective cover; the limiting and clamping device comprises a connecting block, the connecting block is provided with a slot with an upward opening, the connecting block is provided with a clamping block which is in the slot and is in sliding connection with the connecting block, a compression spring is fixedly connected to the grooved side wall, the other end of the compression spring is connected with the clamping block, the top of the clamping block is integrally connected with a push rod, one end of the clamping block is integrally rotated and connected with a roller, the side wall of the connecting block is provided with a waist-shaped groove, the clamping block is fixedly connected with a screw rod which penetrates through the waist-shaped groove, and screw threads are connected with nuts which are positioned on the outer side of the clamping block.

Through adopting above-mentioned technical scheme, promote the push rod and can drive the clamp block and remove along grooved length direction and then drive the clamp block and remove towards the direction of Z axle protection casing, rotatory nut is until the lateral wall of nut extrusion connecting block plays the purpose of restriction clamp block's removal afterwards. The clamping block can play the purpose of stopping the Z-axis protective cover. The compression spring enables the clamping block to always have acting force towards the Z-axis protective cover, and the pushing force on the clamping block is reduced.

In summary, the invention has the following beneficial effects:

1. the crossed roller bearing is adopted, a spacer or a spacer is arranged between the rollers, so that the rollers can be prevented from rubbing each other, in addition, the inner ring and the outer ring are of a split structure, the gap can be adjusted, and high-precision rotary motion can be obtained even if pre-pressing is applied;

2. the 3D drag chain is selected to meet the bending radius of the optical fiber and the cable torsion working condition during cutting;

3. the invention adopts the structure, can reach the cutting angle range of + -45 degrees, the rotation angle of + -360 degrees, the positioning precision of 0.05mm/m, the repeated positioning precision of + -0.02 mm, the maximum speed of rotation of the A and B axes of 60rpm, and the maximum angular acceleration of 128rad/s ² ；

4. The driving A-axis motor can drive the rotating block to rotate so as to drive the cylinder to rotate, and the rotation of the cylinder can drive the rotation of the cutting head support so as to drive the cutting head to rotate, so that the cutting head has the function of rotating around the axis of the output shaft of the A-axis motor, in addition, the cutting head can be driven to rotate in the process, namely, the B-axis motor can drive the cutting head support to rotate so as to drive the cutting head to rotate, so that the cutting head can rotate around the axis of the output shaft of the B-axis motor, and the A-axis motor and the B-axis motor can be started simultaneously, so that the cutting head can rotate on two planes simultaneously so as to perform curved surface movement, and the A-axis motor and the B-axis motor can be separated to operate, thereby being suitable for different working conditions.

Drawings

FIG. 1 is a side view of a portion of the structure of an embodiment;

FIG. 2 is a rear view of a part of the structure of the embodiment;

FIG. 3 is a top view of a portion of the structure of an embodiment;

FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;

FIG. 5 is a schematic view of an embodiment with the top of the Z-axis shield and motor shield removed;

FIG. 6 is an enlarged view of a portion of area B of FIG. 5;

FIG. 7 is a schematic view of the structure of FIG. 5 from another perspective;

FIG. 8 is a schematic structural view of the connection relationship among the positioning block, the fixed shaft, the rotating ring, the extrusion rod and the extrusion arc plate in the embodiment;

FIG. 9 is a top view of an embodiment with the top of the motor housing removed;

FIG. 10 is a schematic view of a limit clamping device with compression springs, screws and nuts removed in an embodiment;

FIG. 11 is a schematic view of a spacing clip according to another embodiment;

FIG. 12 is a schematic diagram of the connection between the Y-axis motor, the Y-axis gear, the cross beam and the Y-axis track slider in an embodiment;

FIG. 13 is a schematic view of an embodiment;

fig. 14 is a partial enlarged view of the region C in fig. 13.

Reference numerals: 1. a machine tool; 2. an X-axis moving device; 3. a Y-axis moving device; 4. a Z-axis moving device; 5. a Z-axis bracket; 6. a Z-axis protective cover; 7. a fixed block; 8. an A-axis motor; 9. a rotating block; 10. a crossed roller bearing; 11. a cylinder; 12. a B-axis motor; 13. a cutting head holder; 14. a cutting head; 15. a cable drag chain; 16. a sliding block; 17. a bump; 18. a slideway; 19. a first driving motor; 20. a drive gear; 21. a Z-axis gear bar; 22. a support plate; 23. a positioning block; 24. a fixed shaft; 25. a rotating ring; 26. an extrusion rod; 27. extruding an arc plate; 28. a motor protection cover; 29. a Y-axis slide; 30. a Y-axis motor; 31. y-axis guide rail sliding blocks; 32. a cross beam; 34. an X-axis sliding block; 35. an X-axis motor; 36. an X-axis gear; 37. an X-axis rack; 38. an electromagnetic valve; 39. a proportional valve; 40. a PCB board; 41. an ELENBOX control box; 42. a connecting block; 43. slotting; 44. a clamping block; 45. a compression spring; 46. a push rod; 47. a roller; 48. sliding concave plate; 49. a housing box; 50. stabilizing the motor; 51. stabilizing the gear; 53. a Y-axis gear; 54. a waist-shaped groove; 55. a screw; 56. and (3) a nut.

Detailed Description

The invention is further described with reference to the accompanying drawings.

A groove cutting machine, as shown in fig. 1-14, comprises a machine tool 1, wherein a groove cutter is arranged on the machine tool 1, and the groove cutter can move on the machine tool 1. The frame is provided with an X-axis moving device 2, a Y-axis moving device 3 and a Z-axis moving device 4. The X-axis moving device 2, the Y-axis moving device 3 and the Z-axis moving device 4 are used for driving the groove cutter to move. The Z-axis moving device 4 comprises a Z-axis bracket 5, the groove cutter comprises a Z-axis protective cover 6 which is in sliding connection with the Z-axis bracket 5, and a rotating assembly is arranged in the Z-axis protective cover 6; the rotating assembly comprises a fixed block 7 fixedly connected with the Z-axis protective cover 6, an A-axis motor 8 is arranged in the fixed block 7, the A-axis motor 8 is connected with a rotating block 9, the rotating block 9 is tightly attached to the fixed block 7, and the rotating block 9 can rotate around the A-axis motor 8. A crossed roller bearing 10 is arranged between the fixed block 7 and the rotating block 9, a cylinder 11 is fixedly connected to one side, far away from the fixed block 7, of the rotating block 9, a B-axis motor 12 is arranged in the cylinder 11, and the B-axis motor 12 and the A-axis motor 8 are vertically arranged. The B-axis motor 12 is connected with a cutting head bracket 13, the cutting head bracket 13 is positioned outside the cylinder 11, and the connection point of the cutting head bracket 13 and the cylinder 11 is positioned on the side surface of the cylinder 11. The cutting head bracket 13 is fixedly connected with a cutting head 14.

The top of Z axle is provided with the cable tow chain 15 that is used for pulling Z axle protection casing 6, cable tow chain 15 selects circular 3D tow chain.

The Y-axis moving device 3 comprises a Y-axis sliding seat 29 fixedly connected with one side of the Z-axis support 5, a Y-axis motor 30 is arranged in the Y-axis sliding seat 29, an outlet shaft of the Y-axis motor 30 penetrates through the Y-axis sliding seat 29, a Y-axis gear 53 is arranged on an outlet shaft of the Y-axis motor 30, a plurality of Y-axis guide rail sliding blocks 31 are fixedly connected with one side, far away from the Z-axis protective cover 6, of the Z-axis support 5, the plurality of Y-axis guide rail sliding blocks 31 are slidably connected with the same cross beam 32, and Y-axis racks (not shown) meshed with the Y-axis gear 53 are arranged on the upper side of the cross beam 32.

In order to increase the stability of the Y-axis moving device, a stabilizing motor 50 is disposed at one side of the Y-axis sliding seat 29, an output shaft of the stabilizing motor 50 penetrates through the Y-axis sliding seat 29, a stabilizing gear 51 is sleeved on the output shaft of the stabilizing motor, and a stabilizing rack (not shown) meshed with the stabilizing gear is fixedly connected to the cross beam.

The X-axis moving device 2 comprises an X-axis sliding block 34 fixedly connected with the cross beam 32, an X-axis motor 35 is arranged in the X-axis sliding block 34, an X-axis gear 36 is connected with the X-axis motor 35, an X-axis rack 37 meshed with the X-axis gear 36 is arranged on the frame, and the X-axis rack 37 is distributed along one side of the frame.

The Z-axis protective cover 6 is fixedly connected with a plurality of concave sliding blocks 16, the inner side of each sliding block 16 is integrally connected with a convex block 17, and the Z-axis support 5 is integrally connected with a slideway 18 which is clamped with the sliding block 16. The presence of the projection 17 allows the slider 16 to be always in a connected state with the slideway 18.

The Z-axis support 5 is provided with a first driving motor 19 in a penetrating mode, one end of the first driving motor 19 is sleeved with a driving gear 20, and the Z-axis protection cover 6 is fixedly connected with a Z-axis gear bar 21 meshed with the gear.

One side of the Z-axis support 5 is integrally connected with a support plate 22, one side of the support plate 22 is fixedly connected with a positioning block 23, the positioning block 23 is fixedly connected with a fixed shaft 24, the fixed shaft 24 is sleeved with a rotating ring 25, the rotating ring 25 is provided with a squeezing rod 26 in a penetrating way, and one end of the squeezing rod 26 in the rotating ring 25 is fixedly connected with a squeezing arc plate 27.

The first driving motor 19 selects a harmonic speed reducer.

The servo motor of the Z axis is provided with a band-type brake, so that the machine tool 1 can be prevented from falling off when power is off.

The motor protection cover 28 is fixedly connected to one side, away from the Z-axis protection cover 6, of the Z-axis support 5, an electromagnetic valve 38, a proportional valve 39 and a PCB 40 are arranged in the motor protection cover 28, and an ELENBOX control box 41 is arranged below the motor protection cover 28.

A limiting and clamping device is arranged in the Z-axis protective cover 6; the limiting and clamping device comprises a connecting block 42, the connecting block 42 is provided with a slot 43 with an upward opening, the connecting block 42 is provided with a clamping block 44 which is in sliding connection with the connecting block 42 and is positioned in the slot 43, a compression spring 45 is fixedly connected to the side wall of the slot 43, the other end of the compression spring 45 is connected with the clamping block 44, the top of the clamping block 44 is integrally connected with a push rod 46, one end of the clamping block 44 is integrally and rotatably connected with a roller 47, the side wall of the connecting block 42 is provided with a waist-shaped slot 54, the clamping block 44 is fixedly connected with a screw 55 penetrating through the waist-shaped slot 54, and the screw 55 is in threaded connection with a nut 56 positioned outside the clamping block 44.

Besides the metal plate chamfering, the invention can also cut three-dimensional structural members, and in addition, the thickness of the cut plate can be adjusted only by replacing the cutting head 14.

One side of the machine tool is provided with a slag discharging trolley, a plurality of sliding concave plates 48 which are in sliding connection with the bottom of the machine tool, and a containing box 49 can be arranged on the sliding concave plates.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a groove cutting machine, includes lathe (1), be provided with the groove cutterbar on lathe (1), be provided with X axle mobile device (2), Y axle mobile device (3) and Z axle mobile device (4) on the lathe, its characterized in that: the Z-axis moving device (4) comprises a Z-axis bracket (5), the groove cutter comprises a Z-axis protective cover (6) which is in sliding connection with the Z-axis bracket (5), and a rotating assembly is arranged in the Z-axis protective cover (6); the rotating assembly comprises a fixed block (7) fixedly connected with a Z-axis protective cover (6), an A-axis motor (8) is arranged in the fixed block (7), the A-axis motor (8) is connected with a rotating block (9), a cross roller bearing (10) is arranged between the fixed block (7) and the rotating block (9), a cylinder (11) is fixedly connected with the rotating block (9), a B-axis motor (12) is arranged in the cylinder (11), the B-axis motor (12) is connected with a cutting head support (13), the cutting head support (13) is fixedly connected with a cutting head (14), the top of the Z-axis support (5) is provided with a cable drag chain (15) for pulling the Z-axis protective cover (6), the cable drag chain (15) is selected to be a round 3D drag chain, the Y-axis moving device (3) comprises a Y-axis sliding seat (29) fixedly connected with one side of the Z-axis support (5), a Y-axis motor (30) is arranged in the Y-axis sliding seat (29), a Y-axis motor (30) is arranged in the Y-axis sliding seat (30), a Y-axis motor (14) is fixedly connected with a Y-axis sliding seat (31) and the Y-axis sliding seat (31) is arranged on one side of the Z-axis protective cover (5), the Y-axis guide rail sliding blocks (31) are slidably connected with the same cross beam (32), Y-axis racks meshed with Y-axis gears (53) are arranged on the upper side of the cross beam (32), the X-axis moving device (2) comprises X-axis sliding blocks (34) fixedly connected with the cross beam (32), X-axis motors (35) are arranged in the X-axis sliding blocks (34), the X-axis motors (35) are connected with X-axis gears (36), the machine tool is provided with X-axis racks (37) meshed with the X-axis gears (36), the X-axis racks (37) are distributed along one side of the machine tool, a plurality of concave sliding blocks (16) are fixedly connected with each Z-axis protective cover (6), bumps (17) are integrally connected to the inner sides of the sliding blocks (16), slide ways (18) clamped with the sliding blocks (16) are integrally connected with each Z-axis support (5), first driving motors (19) are arranged in a penetrating mode, one end of each protective cover of each first driving motor (19) is sleeved with a gear (20), one side of each Z-axis protective cover (20) is fixedly connected with a supporting plate (22), one side of each Z-axis protective cover (20) is fixedly connected with one side of the Z-axis protective cover (22), the positioning block (23) is fixedly connected with a fixed shaft (24), the fixed shaft (24) is sleeved with a rotating ring (25), an extrusion rod (26) in threaded connection with the rotating ring (25) is arranged on the rotating ring (25) in a penetrating mode, an extrusion arc plate (27) is fixedly connected to one end of the extrusion rod (26) located in the rotating ring (25), a harmonic reducer is selected by the first driving motor (19), a motor protection cover (28) is fixedly connected to one side, away from the Z-axis protection cover (6), of the Z-axis support (5), an electromagnetic valve (38), a proportional valve (39) and a PCB (40) are arranged in the motor protection cover (28), an ELENBOX control box (41) is arranged below the motor protection cover (28), and a limiting and clamping device is arranged inside the Z-axis protection cover (6); limiting clamping device includes connecting block (42), connecting block (42) are provided with fluting (43) that the opening up, connecting block (42) are provided with connecting block (42) sliding connection and be in clamp block (44) in fluting (43), the lateral wall fixedly connected with compression spring (45) of fluting (43), the other end and the clamp block (44) of compression spring (45) are connected, the top integral type of clamp block (44) is connected with push rod (46), the integrative rotation of one end of clamp block (44) is connected with gyro wheel (47), the lateral wall of connecting block (42) is provided with waist type groove (54), clamp block (44) fixedly connected with runs through screw rod (55) of waist type groove (54), screw rod (55) threaded connection has nut (56) that are in the clamp block (44) outside.