Profile laser cutting machine

Abstract

The present invention discloses a profile laser cutting machine in the field of laser cutting machine technology. The machine comprises a base frame for mounting a cutting actuator; a five-axis cutting robot mounted on the base frame and capable of self-propelled movement to cut profiles; and a workpiece fixture mounted on the side of the five-axis cutting robot and capable of conveying and clamping the profiles. The present invention is applicable to cutting a variety of profiles.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting machines, in particular to a profile laser cutting machine. Background Art

[0002] I-beams, channel steels, angle steels and other profiles are often long during production. In actual use, they need to be cut into small sections for use.

[0003] Existing I-beams, channel steels, angle steels and other profiles are often cut on different operating platforms according to their shapes, which has low adaptability and is more complicated to operate. At the same time, existing I-beams, channel steels, angle steels and other profile cutting equipment often have difficulties in loading the profiles due to their long length, and it is difficult to move the profiles after cutting.

[0004] Based on this, the present invention designs a profile laser cutting machine to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a profile laser cutting machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a profile laser cutting machine, comprising a base frame for installing a cutting actuator; a five-axis cutting robot, which is arranged on the base frame and can move self-drivenly and perform profile cutting actions; a workpiece fixture, which is arranged on the side of the five-axis cutting robot and can perform profile conveying and clamping actions.

[0007] As a further solution of the present invention, the five-axis cutting robot includes a frame, which is slidably mounted on the base frame; a laser cutting head, which is slidably mounted on the frame; an X-axis motor, which is used to drive the laser cutting head to perform reciprocating motion on the X-axis; a Y-axis motor, which is used to drive the laser cutting head to perform reciprocating motion on the Y-axis; a Z-axis motor, which is used to drive the laser cutting head to perform reciprocating motion on the Z-axis; an A-axis motor, which is used to drive the laser cutting head to perform rotational motion on the A-axis; a height adjuster shaft motor, which is used to track the height of the laser cutting head when it is working; a drag chain synchronous lifting mechanism, which is movably connected to the height adjuster shaft and moves synchronously with the laser cutting head when it moves to prevent damage to the optical fiber and entanglement of the line.

[0008] As a further solution of the present invention, the workpiece clamp includes two fixed clamps arranged on the base frame and a movable clamp located between the two fixed clamps; the fixed clamp and the movable clamp both include a clamp mounting seat; an electro-hydraulic push rod is fixedly mounted on the bottom of the clamp mounting seat and can provide power for clamping the workpiece; a clamp splint is arranged above the electro-hydraulic push rod, and the electro-hydraulic push rod drives the clamp splint to clamp the workpiece when working; an adjusting clamp assembly is arranged on the side of the clamp splint, which can increase the power stroke of the electro-hydraulic push rod; the movable clamp also includes a driving mechanism for driving the movable clamp to reciprocate and transport the workpiece, the driving mechanism includes a mounting sheet metal fixedly connected to the side wall of the clamp mounting seat and a servo motor fixedly connected to the inner side of the mounting sheet metal; a reducer is installed at the output end of the servo motor, and a gear 1 is installed at the outer end of the reducer.

[0009] As a further solution of the present invention, the adjustment card assembly includes a clamping seat slidably mounted on the clamp mounting seat; an L-shaped connecting rod is rotatably mounted on the clamping seat, the rotation center of the connecting rod is located at the corner, the top end of the connecting rod is fixedly connected to a pressure rod, the bottom end of the connecting rod is hinged to a connecting rod, and the bottom end of the connecting rod is hinged to an axle pin; a pull plate is provided below the axle pin, and the pull plate can be driven to move by an electro-hydraulic push rod; a plurality of slots that can be engaged with the axle pin are provided on the pull plate.

[0010] As a further solution of the present invention, the adjusting card assembly includes a clamping seat 2 that is slidably mounted on the clamp mounting seat; an L-shaped connecting rod 3 is rotatably mounted on the clamping seat 2, the rotation center of the connecting rod 3 is located at the corner, the top end of the connecting rod 3 is fixedly connected to a pressure rod 2, and the bottom end of the connecting rod 3 is movably connected to a connecting rod 4; the connecting rod 4 is elastically slidably connected to the clamping seat 2, and the bottom end of the connecting rod 4 is fixedly connected to a rack 1; a pull plate 2 is provided below the connecting rod 4, the pull plate 2 can be driven to move by an electro-hydraulic push rod, and a rack 2 is fixed on the inner side of the pull plate 2, and the rack 1 and rack 2 can engage.

[0011] As a further solution of the present invention, the clamp plate is slidably installed with a slide plate 1 in the vertical direction, and the slide plate 1 is hinged with an L-shaped pressure plate at one end away from the clamp plate. A traction rope is fixedly connected to the slide plate 1, and the traction rope is fixedly connected to a winding roller at one end away from the slide plate 1. The winding roller is rotatably connected to the clamping seat 2, and a gear 2 is fixedly connected to the rotating shaft of the winding roller, and the gear 2 is meshed with the rack 2.

[0012] As a further solution of the present invention, a rear roller assembly is further provided on the side of the workpiece fixture;

[0013] The rear roller assembly includes a base and a rotating roller installed on the top of the base.

[0014] As a further solution of the present invention, the rear roller assembly further includes an angle iron placement mechanism;

[0015] The angle iron placement mechanism includes a fixed plate, a side roller is rotatably installed on the top of the fixed plate, and the angle iron roller side wheels are installed on the side rollers; the bottom end of the fixed plate is fixedly connected to a sliding rod, and the sliding rod is slidably connected to the base in the vertical direction, and the bottom end of the sliding rod is fixedly connected to a slide plate 2, a screw is threadedly connected to the slide plate 2, and the top end of the screw is connected to the base; the screw is threadedly connected to a hand wheel, and the hand wheel is located below the slide plate 2.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention can be applied to the clamping and conveying of different types of profiles through the setting of the workpiece clamp. The workpiece clamp is convenient for loading and adapts to a wide range of specifications. The workpiece does not rotate when the equipment is cutting, and the tail can be welded and connected. The connection process can make the workpiece free of tail material. The equipment operating system does not require programming and teaching, and the operation threshold is very low, and all you need to do is know how to use a computer.

[0018] By adjusting the setting of the clamping plate assembly, the present invention can make the equipment suitable for clamping, conveying and cutting profiles of different widths, and at the same time can ensure the stability of the profile when the profile is cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a structural diagram of the five-axis cutting robot of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the laser cutting head of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the Y-axis motor, Z-axis motor, A-axis motor and drag chain synchronous lifting mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the workpiece fixture structure of the present invention;

[0024] Figure 6 Schematic diagram of the driving mechanism structure of the present invention;

[0025] Figure 7 This is a structural diagram of a second embodiment of the adjustment card assembly of the present invention;

[0026] Figure 8 for Figure 7 A partial enlarged view of the middle part;

[0027] Figure 9 for Figure 7A partial enlarged view of point B in the middle;

[0028] Figure 10 This is a schematic structural diagram of the rear roller assembly of the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] Base frame 1, frame 2, laser cutting head 3, X-axis motor 4, Y-axis motor 5, Z-axis motor 6, A-axis motor 7, height adjuster shaft motor 8, drag chain synchronous lifting mechanism 9, mounting seat 10, electro-hydraulic push rod 11, fixture splint 12, mounting sheet metal 13, servo motor 14, reducer 15, gear 1 16, clamping seat 1 17, connecting rod 1 18, pressure rod 1 19, connecting rod 2 20, shaft pin 21, pull plate 1 22, slot 23, clamping seat 24, connecting rod 3 25, pressure rod 2 26, connecting rod 4 27, rack 1 28, pull plate 2 29, rack 2 30, skateboard 1 31, pressure plate 32, traction rope 33, rewinding roller 34, gear 2 35, base 36, fixed plate 37, side roller 38, angle iron roller side wheel 39, slide bar 40, skateboard 2 41, screw 42, handwheel 43. DETAILED DESCRIPTION

[0031] See also Figure 1-10 The present invention provides a technical solution: a profile laser cutting machine, comprising a base frame 1 for mounting a cutting actuator; a five-axis cutting robot, which is arranged on the base frame 1 and can move self-drivenly and perform profile cutting actions; a workpiece fixture, which is arranged on the side of the five-axis cutting robot and can perform profile conveying and clamping actions;

[0032] First, the profile to be cut is hoisted onto the workpiece fixture. The operator then selects the workpiece model, features and dimensions to be cut on the operation interface. The workpiece fixture then transports the profile to a fixed length on one side of the five-axis cutting robot. After the profile is transported, check whether the cutting point is correct. Then press start. The five-axis cutting robot automatically cuts the profile. After the cutting is completed, the equipment automatically resets, the fixture is released, and the operator removes the remaining material.

[0033] Specifically, such as Figure 1-4As shown, the five-axis cutting robot includes a frame 2, which is slidably mounted on the base frame 1; a laser cutting head 3, which is slidably mounted on the frame 2; an X-axis motor 4, which is used to drive the laser cutting head 3 to perform reciprocating motion on the X-axis; a Y-axis motor 5, which is used to drive the laser cutting head 3 to perform reciprocating motion on the Y-axis; a Z-axis motor 6, which is used to drive the laser cutting head 3 to perform reciprocating motion on the Z-axis; an A-axis motor 7, which is used to drive the laser cutting head 3 to perform rotational motion on the A-axis; a height adjuster shaft motor 8, which is used for height tracking of the laser cutting head 3 when it is working; a drag chain synchronous lifting mechanism 9, which is movably connected to the height adjuster shaft and moves synchronously with the laser cutting head 3 when it moves to prevent optical fiber damage and line entanglement; after the operator selects the model of the workpiece to be cut and the features and dimensions to be cut on the operation interface, the X-axis motor 4, the Y-axis motor 5, the Z-axis motor 6 and the A-axis motor 7 will drive the laser cutting head 3 to move to the optimal cutting position.

[0034] Specifically, such as Figure 1 、 Figure 5 、 Figure 6 As shown, the workpiece clamp includes two fixed clamps arranged on the base frame 1 and a mobile clamp located between the two fixed clamps; the fixed clamp and the mobile clamp both include a clamp mounting seat 10; an electro-hydraulic push rod 11, which is fixed to the bottom of the clamp mounting seat 10 and can provide power for clamping the workpiece; a clamp clamping plate 12, which is arranged above the electro-hydraulic push rod 11, and drives the clamp clamping plate 12 to clamp the workpiece when the electro-hydraulic push rod 11 is working; an adjusting clamping plate assembly, which is arranged on the side of the clamp clamping plate 12, can increase the power stroke of the electro-hydraulic push rod 11; the mobile clamp also includes a driving mechanism for driving the mobile clamp to reciprocate and transport the workpiece, the driving mechanism includes a mounting sheet metal 13 fixed to the side wall of the clamp mounting seat 10 and a servo motor 14 fixed to the inner side of the mounting sheet metal 13; a reducer 15 is installed at the output end of the servo motor 14, and a gear 16 is installed at the outer end of the reducer 15;

[0035] When the workpiece needs to be moved, the electro-hydraulic push rod 11 on the fixed fixture drives the fixture plate 12 to move away from the workpiece to release the workpiece; at the same time, the electro-hydraulic push rod 11 on the mobile fixture drives the fixture plate 12 to move close to the workpiece to clamp the workpiece; then the servo motor 14 on the side of the mobile fixture is started, and the servo motor 14 will drive the gear 16 to rotate through the reducer 15; it should be noted that gear 16 is engaged with the rack provided on the base frame 1; when gear 16 rotates, it will drive the workpiece to move a fixed distance toward the side close to the laser cutting head 3 under the action of the rack; after the mobile fixture transports the workpiece, the two fixed fixtures clamp the workpiece again, and then the mobile fixture can move back to the initial position away from the laser cutting head 3.

[0036] Example 1, as Figure 5As shown, the adjustment card assembly includes a pressing seat 17 slidably mounted on the fixture mounting seat 10; an L-shaped connecting rod 18 is rotatably mounted on the pressing seat 17, the rotation center of the connecting rod 18 is located at the corner, the top of the connecting rod 18 is fixedly connected to a pressing rod 19, the bottom end of the connecting rod 18 is hinged to a connecting rod 20, and the bottom end of the connecting rod 20 is hinged to an axle pin 21; a pull plate 22 is provided below the axle pin 21, and the pull plate 22 can be driven to move by the electro-hydraulic push rod 11; a plurality of card slots 23 that can be engaged with the axle pin 21 are opened on the pull plate 22;

[0037] Since the power stroke of the electro-hydraulic push rod 11 is only 300mm, when the width of the workpiece to be clamped is large, the operator can press the pressure rod 19, the pressure rod 19 will drive the connecting rod 18 to rotate, and the bottom end of the connecting rod 18 will drive the drying 20 and the shaft pin 21 to lift upward, so that the shaft pin 21 is out of the slot 23, and then the operator can push the pressing seat 17 to move on the pull plate 22 through the pressure rod 19. After moving the pressing seat 17 to a suitable position, release the pressure rod 19, and the connecting rod 18 will return to its original position under the action of the spring. Figure 5 In the state shown, the axle pin 21 is then snapped into the slot 23 located below it, so that the workpiece clamp can be suitable for clamping profiles of different widths.

[0038] Example 2, as Figure 7-9 As shown, the adjustment card assembly includes a pressing seat 24 slidably mounted on the clamp mounting seat 10; an L-shaped connecting rod 3 25 is rotatably mounted on the pressing seat 24, the rotation center of the connecting rod 3 25 is located at the corner, the top of the connecting rod 3 25 is fixedly connected to a pressing rod 26, and the bottom end of the connecting rod 3 25 is movably connected to a connecting rod 4 27; the connecting rod 4 27 is elastically slidably connected to the pressing seat 24, and the bottom end of the connecting rod 4 27 is fixedly connected to a rack 1 28; a pull plate 29 is provided below the connecting rod 4 27, and the pull plate 29 can be driven to move by the electro-hydraulic push rod 11, and a rack 2 30 is fixed on the inner side of the pull plate 29, and the rack 1 28 and the rack 2 30 can mesh;

[0039] In this embodiment, when the stroke of the electro-hydraulic push rod 11 needs to be adjusted, the operator can press the pressure rod 2 26, and the pressure rod 2 26 will drive the connecting rod 4 27 and the rack 1 28 to move upward synchronously through the connecting rod 3 25. Then the operator can push the clamping seat 2 24 to move on the pull plate 2 29. After the clamp splint 12 moves to the appropriate position, the pressure rod 2 26 can be released, and then the rack 1 28 will move downward to the position where the rack 2 30 engages under the action of the spring and the connecting rod 4 27. The clamping seat 2 24 and the pull plate 2 29 can be relatively fixed through the engagement of the rack 2 30 and the rack 1 28. Compared with embodiment 1, this embodiment has more precise position adjustment of the pressure seat, and the pressure seat can be fixed at any position on the pull plate, which can greatly improve the clamping accuracy of the clamp splint 12.

[0040] Specifically, such as Figure 7-Figure 9 As shown, the clamping plate 12 is slidably mounted with a slide plate 1 31 in the vertical direction, and an L-shaped pressure plate 32 is hingedly connected to the end of the slide plate 1 31 away from the clamping plate 12. A traction rope 33 is fixedly connected to the slide plate 1 31, and a winding roller 34 is fixedly connected to the end of the traction rope 33 away from the slide plate 1 31. The winding roller 34 is rotatably connected to the pressing seat 2 24, and a gear 2 35 is fixedly connected to the rotating shaft of the winding roller 34, and the gear 2 35 is meshed with the rack 2 30;

[0041] When the electro-hydraulic push rod 11 pushes the pulling plate 29, the pressing seat 24 and the clamping plate 12 to move closer to the workpiece, the side wall of the workpiece will drive the pressing plate 32 to rotate until the upper end of the pressing plate 32 rotates to a position pressing on the inner side of the workpiece; the pressing plate 32 can play the role of fixing the workpiece and can cooperate with the clamping plate 12 to better clamp the workpiece; it should be noted that, since the model of the profile is often fixed, when the width of the profile is small, the corresponding height will also be smaller, and when the width of the profile is large, the corresponding height will also be higher; therefore, when the pressing seat 24 is Figure 7 When the state shown moves to the left, the width of the profile that the workpiece clamp needs to clamp is smaller. When the clamping seat 24 moves, the gear 2 35 will drive the winding roller 34 to rotate and loosen the traction rope 33 under the action of the rack 2 30, and then the slide 1 31 can drive the pressure plate 32 to move downward, so that the pressure plate 32 can be suitable for clamping profiles of different types.

[0042] Specifically, such as Figure 10As shown, the side of the workpiece clamp is also provided with a rear roller assembly; the rear roller assembly includes a base 36 and a rotating roller installed on the top of the base 36; the rear roller assembly also includes an angle iron placement mechanism; the angle iron placement mechanism includes a fixed plate 37, on the top of which a side roller 38 is rotatably installed, and the side roller 38 is installed with an angle iron roller edge wheel 39; the bottom end of the fixed plate 37 is fixedly connected to a slide bar 40, and the slide bar 40 is slidably connected to the base 36 in the vertical direction, and the bottom end of the slide bar 40 is fixedly connected to a slide plate 2 41, and a screw 42 is threadedly connected to the slide plate 2 41, and the top end of the screw 42 is connected to the base 36; the screw 42 is threadedly connected to a hand wheel 43, and the hand wheel 43 is located below the slide plate 2 41;

[0043] The rear roller assembly is used to provide support for the workpiece. The workpiece can be placed on the roller, and the roller can rotate when the workpiece is transported. When the angle iron needs to be cut, the angle iron can be placed on the angle iron roller edge wheel 39 and the side roller 38. By turning the hand wheel 43, the height of the fixed plate 37, the side roller 38 and the angle iron roller edge wheel 39 can be adjusted, which can be suitable for supporting different types of angle irons.

Claims

1. Profile laser cutting machine, characterized by: include A chassis (1) for mounting a cutting actuator; A five-axis cutting robot is arranged on the base frame (1) and is capable of self-propelled movement and execution of profile cutting operations; The workpiece fixture is set on the side of the five-axis cutting robot and can perform the conveying and clamping of profiles; The workpiece fixture comprises two fixed fixtures arranged on a base frame (1) and a movable fixture located between the two fixed fixtures; The fixed fixture and the movable fixture both include a fixture mounting seat (10); An electro-hydraulic push rod (11) is fixed to the bottom of the fixture mounting seat (10) and is capable of providing power for clamping the workpiece; A clamping plate (12) is arranged above the electro-hydraulic push rod (11), and when the electro-hydraulic push rod (11) is working, the clamping plate (12) is driven to clamp the workpiece; An adjusting clamping plate assembly is provided on the side of the clamping plate (12) and is capable of increasing the power stroke of the electro-hydraulic push rod (11); The mobile fixture further includes a driving mechanism for driving the mobile fixture to reciprocate and transport the workpiece; The driving mechanism includes a mounting plate (13) fixed to the side wall of the fixture mounting seat (10) and a servo motor (14) fixed to the inner side of the mounting plate (13); a reducer (15) is installed at the output end of the servo motor (14), and a gear 1 (16) is installed at the outer end of the reducer (15); The adjusting card assembly includes a pressing seat (17) slidably mounted on the clamp mounting seat (10); an L-shaped connecting rod (18) is rotatably mounted on the pressing seat (17), the rotation center of the connecting rod (18) is located at the corner, the top end of the connecting rod (18) is fixedly connected to a pressing rod (19), the bottom end of the connecting rod (18) is hinged to a connecting rod (20), and the bottom end of the connecting rod (20) is hinged to an axle pin (21); a pull plate (22) is provided below the axle pin (21), and the pull plate (22) can be driven to move by the electro-hydraulic push rod (11); a plurality of card slots (23) that can be engaged with the axle pin (21) are provided on the pull plate (22); The adjusting card assembly includes a pressing seat 2 (24) slidably mounted on the clamp mounting seat (10); an L-shaped connecting rod 3 (25) is rotatably mounted on the pressing seat 2 (24), the rotation center of the connecting rod 3 (25) is located at the corner, the top end of the connecting rod 3 (25) is fixedly connected to the pressing rod 2 (26), and the bottom end of the connecting rod 3 (25) is movably connected to the connecting rod 4 (27); the connecting rod 4 (27) is elastically slidably connected to the pressing seat 2 (24), and the bottom end of the connecting rod 4 (27) is fixedly connected to the rack 1 (28); a pull plate 2 (29) is provided below the connecting rod 4 (27), the pull plate 2 (29) can be driven to move by the electro-hydraulic push rod (11), and a rack 2 (30) is fixedly provided on the inner side of the pull plate 2 (29), and the rack 1 (28) and the rack 2 (30) can be meshed.

2. The profile laser cutting machine according to claim 1, characterized in that: The five-axis cutting robot includes A frame (2) is slidably mounted on the base frame (1); A laser cutting head (3), wherein the laser cutting head (3) is slidably mounted on the frame (2); An X-axis motor (4) is used to drive the laser cutting head (3) to perform reciprocating motion on the X-axis; A Y-axis motor (5) for driving the laser cutting head (3) to perform reciprocating motion on the Y-axis; A Z-axis motor (6) for driving the laser cutting head (3) to perform reciprocating motion on the Z-axis; A-axis motor (7), used for driving the laser cutting head (3) to rotate on the A-axis; A height adjuster shaft motor (8) for tracking the height of the laser cutting head (3) during operation; The drag chain synchronous lifting mechanism (9) is movably connected to the height adjuster shaft and moves synchronously with the movement of the laser cutting head (3) to prevent damage to the optical fiber and entanglement of the line.

3. The profile laser cutting machine according to claim 1, characterized in that: The clamping plate (12) is slidably mounted with a slide plate (31) in the vertical direction, and an L-shaped pressure plate (32) is hingedly connected to one end of the slide plate (31) away from the clamping plate (12), and a traction rope (33) is fixedly connected to the slide plate (31), and the traction rope (33) is fixedly connected to the other end of the slide plate (31) away from the other end of the slide plate (31), and the reeling roller (34) is rotatably connected to the clamping seat (24), and a gear (35) is fixedly connected to the rotating shaft of the reeling roller (34), and the gear (35) is meshed with the rack (30).

4. The profile laser cutting machine according to claim 1, characterized in that: A rear roller assembly is also provided on the side of the workpiece fixture; The rear roller assembly comprises a base (36) and a rotating roller mounted on the top of the base (36).

5. The profile laser cutting machine according to claim 4, characterized in that: The rear roller assembly also includes an angle iron placement mechanism; The angle iron placement mechanism includes a fixed plate (37), a side roller (38) is rotatably mounted on the top of the fixed plate (37), and an angle iron roller side wheel (39) is mounted on the side roller (38); a sliding rod (40) is fixedly connected to the bottom end of the fixed plate (37), and the sliding rod (40) is slidably connected to the base (36) in the vertical direction, and a slide plate (41) is fixedly connected to the bottom end of the sliding rod (40), and a screw rod (42) is threadedly connected to the slide plate (41), and the top end of the screw rod (42) is connected to the base (36); the screw rod (42) is threadedly connected to a hand wheel (43), and the hand wheel (43) is located below the slide plate (41).

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