Multi-axis laser cutting positioning device

Abstract

The utility model discloses a multi-shaft laser cutting positioning device which comprises a machine frame, and an electromagnet plate extending horizontally is fixed to the middle of the top face of a top plate of the machine frame. Transverse moving mechanisms extending leftwards and rightwards are fixed to the front portion and the rear portion of the top face of a top plate of the rack correspondingly. Longitudinal moving mechanisms extending forwards and backwards are fixed to the left portion and the right portion of the top face of the top plate of the rack correspondingly. A to-be-machined workpiece can be placed on the electromagnet plate at will, and the coordinate position of a datum point of the to-be-machined workpiece is sensed through synchronous movement of the first infrared transmitter, the first infrared receiver, the second infrared transmitter, the second infrared receiver, the third infrared transmitter and the third infrared receiver. And the position can be used as the reference position of the cutting point of the multi-axis laser cutting machine through the control host, manual calculation is not needed, and great convenience is brought to operation and use of an operator.

Description

Technical fields:

[0001] This utility model relates to the field of laser cutting equipment technology, and more specifically to a multi-axis laser cutting positioning device. Background technology:

[0002] In existing multi-axis laser cutting machines, the workpiece to be processed needs to be placed on the frame and then clamped and fixed. Then, the multi-axis robot of the multi-axis laser cutting machine moves so that the laser cutting head cuts different positions of the workpiece. However, the movement and cutting positions are based on certain settings. Therefore, the corresponding reference position of the workpiece on the frame needs to be determined, otherwise it will affect the accuracy of subsequent processing.

[0003] The existing method is to set an initial position on the top plate of the frame. During installation, the workpiece needs to be accurately aligned with this position. The initial position cannot be adjusted. When some workpieces cannot be installed in the initial position, they need to be moved to other positions. Then, the distance between the moved position and the initial position is calculated to obtain the workpiece installation position information. This calculation needs to be done manually, which is very troublesome. Utility Model Content:

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-axis laser cutting positioning device. It can place the workpiece to be processed randomly on the electromagnet plate. Through the synchronous movement of the first infrared emitter, the first infrared receiver, the second infrared emitter, the second infrared receiver, the third infrared emitter, and the third infrared receiver, the coordinate position of the reference point of the workpiece to be processed is sensed and transmitted to the control host. The control host can use this position as the reference position of the cutting point of the multi-axis laser cutting machine, eliminating the need for manual calculation and greatly facilitating the operation of the operator.

[0005] The solution of this utility model to the aforementioned technical problem is:

[0006] A multi-axis laser cutting positioning device includes a frame, wherein a horizontally extending electromagnet plate is fixed in the middle of the top surface of the top plate of the frame.

[0007] The top surface of the top plate of the frame is fixed with a lateral moving mechanism extending left and right at the front and rear, and the top surface of the top plate of the frame is fixed with a longitudinal moving mechanism extending front and back at the left and right.

[0008] The top surfaces of the lateral moving blocks of the two lateral moving mechanisms are respectively fixed with a first infrared transmitter and a first infrared receiver, and the infrared rays of the first infrared transmitter irradiate the receiving end of the first infrared receiver.

[0009] The top surface of the longitudinal moving block of the two longitudinal moving mechanisms is respectively fixed with a second infrared emitter and a second infrared receiver, and the infrared of the second infrared emitter irradiates to the receiving end of the second infrared receiver.

[0010] The infrared of the first infrared emitter and the infrared of the second infrared emitter are both above the electromagnet plate.

[0011] The front left side and the rear right side of the top surface of the top plate of the rack are respectively fixed with a vertical adjusting mechanism, and the lifting block of the two vertical adjusting mechanisms is respectively fixed with a third infrared emitter and a third infrared receiver, respectively, and the infrared of the third infrared emitter irradiates to the receiving end of the third infrared receiver.

[0012] The longitudinal moving mechanism comprises vertical fixed plates fixed at the front and rear corresponding positions of the top surface of the top plate of the rack, and the two ends of the front-rear extending first adjusting screw are movably connected to the two vertical fixed plates through bearings, and the outer side wall of one of the vertical fixed plates is fixed with a longitudinal moving motor, the longitudinal moving motor drives the first adjusting screw to rotate, and the longitudinal moving block is screwed on the corresponding first adjusting screw.

[0013] The front-rear extending first guide rail fixed on the inner side wall of the corresponding side guide plate is inserted into the first sliding block fixed on the outer side wall of the longitudinal moving block and matched with the first guide rail.

[0014] The transverse moving mechanism comprises fixed plates fixed at the left and right of the front or rear of the top surface of the top plate of the rack, and the left-right extending second adjusting screw is movably connected to the two fixed plates through bearings, one end of the second adjusting screw extends out of one end of the corresponding fixed plate and is fixed with a transmission synchronous pulley, and the bottom surface of the corresponding rack is fixed with a transverse moving motor, and the output shaft of the transverse moving motor is fixed with a driving synchronous pulley, and the synchronous belt is tensioned between the driving synchronous pulley and the transmission synchronous pulley, and the synchronous belt is inserted into the corresponding through slot formed on the top plate of the rack, and the transverse moving block is screwed on the corresponding second adjusting screw.

[0015] The left-right corresponding two fixed plates are fixed with a transverse fixed plate, the left-right extending second guide rail is fixed on the inner side wall of the transverse fixed plate, and the second sliding block is fixed on the outer wall surface of the transverse moving block and matched with the second guide rail.

[0016] The vertical adjusting mechanism comprises a vertical support frame, a bottom plate of the vertical support frame is fixed on the top surface of the top plate of the rack, two ends of the vertical adjusting screw are movably connected to the top plate and the bottom plate of the vertical support frame through bearings, a lifting motor is fixed on the top surface of the top plate of the vertical support frame, the lifting motor drives the vertical adjusting screw to rotate, a third sliding block is fixed on the side wall of the lifting block, the third sliding block is inserted into the third guide rail fixed on the inner side wall of the vertical plate of the vertical support frame and cooperates with the third guide rail.

[0017] The protruding effect of the utility model is:

[0018] It can place the workpiece to be machined on the electromagnet plate at will, synchronously move the first infrared emitter, the first infrared receiver, the second infrared emitter, the second infrared receiver and the third infrared emitter, the third infrared receiver, induct the coordinate position of the reference point of the workpiece to be machined, and convey it to the control host, which can take this position as the reference position of the cutting point of the multi-axis laser cutting machine through the control host, without manual calculation, greatly facilitating the operation of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a partial structure schematic view of the utility model;

[0020] Figure 2 It is a partial structure schematic view of the utility model clamping another workpiece;

[0021] Figure 3 It is a partial structure schematic view of the vertical adjusting mechanism;

[0022] Figure 4 It is a partial structure schematic view of the horizontal moving mechanism;

[0023] Figure 5 It is a partial structure schematic view of the material receiving groove;

[0024] Figure 6 It is a partial enlarged view of Figure 1 ;

[0025] Figure 7 It is a partial enlarged view of another part of Figure 1 . DETAILED DESCRIPTION

[0026] As shown in Figures 1 to 7 , a multi-axis laser cutting positioning device comprises a rack 10, a horizontal electromagnet plate 11 is fixed in the middle of the top surface of the top plate of the rack 10;

[0027] The top surface of the top plate of the frame 10 is fixed with a horizontally extending lateral moving mechanism 20 at the front and rear, and a longitudinally extending longitudinal moving mechanism 30 is fixed with a front-back extending longitudinal moving mechanism 30 at the left and right sides.

[0028] The top surfaces of the lateral moving blocks 21 of the two lateral moving mechanisms 20 are respectively fixed with a first infrared transmitter 211 and a first infrared receiver 212, and the infrared rays of the first infrared transmitter 211 irradiate the receiving end of the first infrared receiver 212.

[0029] The top surfaces of the longitudinal moving blocks 31 of the two longitudinal moving mechanisms 30 are respectively fixed with a second infrared transmitter 311 and a second infrared receiver 312, and the infrared rays of the second infrared transmitter 311 irradiate the receiving end of the second infrared receiver 312.

[0030] The infrared rays from the first infrared emitter 211 and the second infrared emitter 311 are both located above the electromagnet plate 11.

[0031] Furthermore, vertical adjustment mechanisms 40 are fixed at the left front part and the right rear part of the top surface of the top plate of the frame 10. A third infrared transmitter 411 and a third infrared receiver 412 are respectively fixed on the lifting blocks 41 of the two vertical adjustment mechanisms 40. The infrared rays of the third infrared transmitter 411 irradiate the receiving end of the third infrared receiver 412.

[0032] Furthermore, the longitudinal moving mechanism 30 includes vertical fixed plates at corresponding positions at the front and rear of the top surface of the top plate of the frame 10. The two ends of the first adjusting screw 32 extending forward and backward are movably connected to the two vertical fixed plates through bearings. A longitudinal moving motor 33 is fixed on the outer wall of one of the vertical fixed plates. The output shaft of the longitudinal moving motor 33 is a spline shaft, which is inserted into the spline hole at one end of the corresponding first adjusting screw 32 and drives the first adjusting screw 32 to rotate. The longitudinal moving block 31 is screwed onto the corresponding first adjusting screw 32.

[0033] Furthermore, a side guide plate 34 is fixed between the corresponding vertical fixed plates at the front and rear, and a first slider 35 is fixed on the outer side wall of the longitudinal moving block 31. The first slider 35 is inserted into the first guide rail 36 extending forward and backward fixed on the inner side wall of the corresponding side guide plate 34 and cooperates with the first guide rail 36.

[0034] Furthermore, the lateral movement mechanism 20 includes a left and right fixed plate 22 fixed to the front or rear of the top surface of the top plate of the frame 10. A second adjusting screw 23 extending to the left and right is movably connected to the two fixed plates 22 through bearings. One end of the second adjusting screw 23 extends out of the corresponding fixed plate 22 and is fixed with a transmission synchronous pulley 24. A lateral movement motor 25 is fixed to the bottom surface of the top plate of the frame 10. A drive synchronous pulley 26 is fixed to the output shaft of the lateral movement motor 25. A synchronous belt 27 is tensioned between the drive synchronous pulley 26 and the transmission synchronous pulley 24. The synchronous belt 27 is inserted into the corresponding through groove 12 formed on the top plate of the frame 10. The lateral movement block 21 is screwed onto the corresponding second adjusting screw 23.

[0035] Furthermore, a transverse fixing plate 28 is fixed between the two corresponding fixing plates 22 on the left and right. A second guide rail 29 extending to the left and right is fixed on the inner side wall of the transverse fixing plate 28. A second slider 213 is fixed on the outer wall of the transverse moving block 21. The second slider 213 is inserted into the second guide rail 29 and cooperates with the second guide rail 29.

[0036] Furthermore, the vertical adjustment mechanism 40 includes a vertical support frame, the bottom plate of which is fixed to the top surface of the top plate of the frame 10. The two ends of the vertical adjustment screw 42 are movably connected to the top plate and the bottom plate of the vertical support frame through bearings. A lifting motor 43 is fixed on the top surface of the top plate of the vertical support frame. The output shaft of the lifting motor 43 is a spline shaft, which is inserted into the spline hole at one end of the corresponding vertical adjustment screw 42 and drives the vertical adjustment screw 42 to rotate. A third slider 44 is fixed on the side wall of the lifting block 41, which is inserted into the third guide rail 45 fixed on the inner side wall of the vertical plate of the vertical support frame and cooperates with the third guide rail 45.

[0037] Furthermore, the top plates of the frame 10 on the left and right sides of the electromagnet plate 11 are formed with a first waste material discharge channel 13 extending from front to back, and the top plates of the frame 10 on the front and rear sides of the electromagnet plate 11 are formed with a second waste material discharge channel 14. The first waste material discharge channel 13 is located between the corresponding longitudinal moving mechanism 30 and the electromagnet plate 11, and the second waste material discharge channel 14 is located between the corresponding transverse moving mechanism 20 and the electromagnet plate 11.

[0038] Furthermore, side guide blocks 50 are fixed to the bottom surface of the top plate of the frame 10 at both ends of the first waste material discharge channel 13 or the second waste material discharge channel 14. Limiting blocks 51 are fixed to the middle of the opposite walls of the two corresponding side guide blocks 50. The upper part of the outer wall of the limiting block 51 is formed with an upper slot corresponding to the first waste material discharge channel 13 or the second waste material discharge channel 14. A central through channel is formed in the middle of the bottom surface of the upper slot. The outer end of the central through channel... Extending from the outer side wall of the limiting block 51, the receiving trough 52 is inserted into the central through groove. A bent part 53 is fixed or formed on the outer side wall of the bottom of the receiving trough 52. The bent part 53 is inserted into the edge of the corresponding upper slot, and its bottom surface presses against the bottom surface of the corresponding upper slot. The receiving trough 52 is located below the corresponding first waste material discharge channel 13 or second waste material discharge channel 14 and corresponds to the first waste material discharge channel 13 or second waste material discharge channel 14.

[0039] The bottom surface of the top plate of the frame 10 is fixed with a lower support column at both the edge and the middle, and the bottom surface of the lower support column rests against the ground.

[0040] In this embodiment, the longitudinal moving motor 33, the transverse moving motor 25, and the lifting motor 43 are all servo motors. All electrical equipment in this embodiment is electrically connected to the control host via electrical connection lines. Upper support columns are fixed on the top plates at the four corners of the frame 10, and support frames and moving mechanisms for the movement of the multi-axis laser manipulator are fixed on top of them. These are existing conventional structures and will not be described in detail here.

[0041] In this embodiment, the workpiece 100 to be processed is placed on the electromagnet plate 11, and the flat surface of the workpiece 100 is selected as the bottom surface to press against the top surface of the electromagnet plate 11. Then, it is moved horizontally left and right. When its top end blocks the infrared rays of the third infrared transmitter 411, it means that its height is higher than the infrared rays of the third infrared transmitter 411. At this time, the two lifting motors 43 are operated to lift the third infrared transmitter 411 and the third infrared receiver 412 until the infrared rays of the third infrared transmitter 411 are no longer blocked by the workpiece 100. This means that this is the highest point of the workpiece 100. At this time, the signal transmitted by the third infrared receiver 412 to the control host is processed by the corresponding software of the control host to obtain its height (since the lifting motor 43 is a servo motor, it can obtain the height position of the lifting block 41 by rotating the ring).

[0042] Then, the workpiece 100 is moved horizontally, ensuring that its left or front side is in a horizontal position. The top surface of the electromagnet plate 11 is engraved with a grid consisting of multiple horizontal extension slots and multiple longitudinal extension slots extending forward and backward. It is only necessary to ensure that the left side is aligned with one of the longitudinal extension slots and the front side is aligned with one of the horizontal extension slots. Then, the electromagnet plate 11 is opened to attract and fix the workpiece 100 (the workpiece 100 processed in this embodiment is made of magnetically absorbable material; other materials require specific fixtures, which will not be detailed here). Then, the longitudinal moving motor 33 and the transverse moving motor 25 are operated. When the left side of the workpiece 100 changes from blocking the infrared rays of the first infrared emitter 211 to being unblocked, the first infrared receiver 212 senses the infrared rays, which is the position of the left side of the workpiece 100 (since the transverse moving motor 25 is a servo motor, it can obtain the position of the transverse moving block 21 by rotating the ring), and transmits it to the control host. The control host can then obtain the position of the left side wall of the workpiece 100.

[0043] Similarly, when the front wall of workpiece 100 changes from blocking the infrared rays of the second infrared emitter 311 to being unobstructed, the infrared rays sensed by the second infrared receiver 312 at this time indicate the position of the front wall of workpiece 100. The control host can then obtain the position of the front side wall of workpiece 100, thereby obtaining the three-coordinate position of workpiece 100. The intersection of the front wall and the left side wall is the base point. The control host can then move the laser cutting point of the multi-axis laser robot to this point as the base point to design the cutting trajectory for operation, which is very convenient.

[0044] like Figure 2 As shown, when the front wall and left wall of workpiece 100 are not perpendicular, it is only necessary to align the left wall with the longitudinal extension groove and take the front end point of the front wall as the front reference. Then, it can be cut. In this embodiment, the bottom plate of workpiece 100 is not cut during cutting, but the other walls can be cut.

[0045] This embodiment has a good positioning effect, and after cutting, the waste material can fall from the first waste material discharge channel 13 or the second waste material discharge channel 14 into the corresponding receiving trough 52, which is convenient for waste material collection. Subsequently, it is only necessary to remove the receiving trough 52 and empty it, which is very convenient.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-axis laser cutting positioning device comprising a gantry (10), characterized in that: The horizontal electromagnetic plate (11) is fixed in the middle of the top surface of the top plate of the frame (10); The left and right extending transverse moving mechanisms (20) are fixed on the front and rear of the top surface of the top plate of the frame (10), and the front and rear extending longitudinal moving mechanisms (30) are fixed on the left and right of the top surface of the top plate of the frame (10); The top surface of the transverse moving block (21) of the two transverse moving mechanisms (20) is respectively fixed with the first infrared emitter (211) and the first infrared receiver (212), and the infrared of the first infrared emitter (211) irradiates to the receiving end of the first infrared receiver (212); The top surface of the longitudinal moving block (31) of the two longitudinal moving mechanisms (30) is respectively fixed with the second infrared emitter (311) and the second infrared receiver (312), and the infrared of the second infrared emitter (311) irradiates to the receiving end of the second infrared receiver (312); The infrared of the first infrared emitter (211) and the infrared of the second infrared emitter (311) are both above the electromagnetic plate (11).

2. A multi-axis laser cutting positioning apparatus as claimed in claim 1, wherein: The left side of the front of the top surface of the top plate of the frame (10) and the right side of the rear of the top surface of the top plate of the frame (10) are respectively fixed with the vertical adjusting mechanism (40), the third infrared emitter (411) and the third infrared receiver (412) are respectively fixed on the lifting block (41) of the two vertical adjusting mechanisms (40), and the infrared of the third infrared emitter (411) irradiates to the receiving end of the third infrared receiver (412).

3. The multi-axis laser cutting positioning apparatus of claim 1, wherein: The longitudinal moving mechanism (30) comprises vertical fixed plates fixed on the front and rear of the top surface of the top plate of the frame (10), and the two ends of the front and rear extending first adjusting screw (32) are movably connected to the two vertical fixed plates through bearings, and the outer side wall of one of the vertical fixed plates is fixed with the longitudinal moving motor (33), the longitudinal moving motor (33) drives the first adjusting screw (32) to rotate, and the longitudinal moving block (31) is screwed on the corresponding first adjusting screw (32).

4. A multi-axis laser cutting positioning apparatus as claimed in claim 3, wherein: The side guide plates (34) are fixed between the front and rear corresponding vertical fixed plates, the first sliding block (35) is fixed on the outer side wall of the longitudinal moving block (31), and the first sliding block (35) is inserted on the front and rear extending first guide rail (36) fixed on the inner side wall of the corresponding side guide plate (34) and matched with the first guide rail (36).

5. A multi-axis laser cutting positioning apparatus as claimed in claim 1, wherein: The transverse moving mechanism (20) comprises fixed plates (22) fixed on the left and right parts of the front or rear part of the top surface of the top plate of the rack (10), left and right extending second adjusting screws (23) are movably connected to the two fixed plates (22) through bearings, one end of the second adjusting screw (23) extends out of one end of the corresponding fixed plate (22) and is fixed with a transmission synchronous pulley (24), the bottom surface of the corresponding top plate of the rack (10) is fixed with a transverse moving motor (25), a driving synchronous pulley (26) is fixed on the output shaft of the transverse moving motor (25), a synchronous belt (27) is tensioned on the driving synchronous pulley (26) and the transmission synchronous pulley (24), the synchronous belt (27) is inserted into the corresponding through slot (12) formed on the top plate of the rack (10), and the transverse moving block (21) is screwed on the corresponding second adjusting screw (23).

6. A multi-axis laser cutting positioning apparatus as claimed in claim 5, wherein: Corresponding left and right two fixed plates (22) are fixed with a transverse fixed plate (28), the inner side wall of the transverse fixed plate (28) is fixed with left and right extending second guide rails (29), and the outer wall surface of the transverse moving block (21) is fixed with second sliding blocks (213) which are inserted into and matched with the second guide rails (29).

7. A multi-axis laser cutting positioning apparatus as claimed in claim 2, wherein: The vertical adjusting mechanism (40) comprises a vertical support frame, the bottom plate of the vertical support frame is fixed on the top surface of the top plate of the rack (10), both ends of the vertical adjusting screw (42) are movably connected to the top plate and the bottom plate of the vertical support frame through bearings, the top surface of the top plate of the vertical support frame is fixed with a lifting motor (43), the lifting motor (43) drives the vertical adjusting screw (42) to rotate, and the side wall of the lifting block (41) is fixed with third sliding blocks (44) which are inserted into and matched with third guide rails (45) fixed on the inner side wall of the vertical plate of the vertical support frame.

8. A multi-axis laser cutting positioning apparatus as claimed in claim 1, wherein: The top plate of the rack (10) at the left and right sides of the electromagnet plate (11) is formed with front and rear extending first waste material falling through slots (13), the top plate of the rack (10) at the front and rear sides of the electromagnet plate (11) is formed with second waste material falling through slots (14), the first waste material falling through slots (13) are between the corresponding longitudinal moving mechanism (30) and the electromagnet plate (11), and the second waste material falling through slots (14) are between the corresponding transverse moving mechanism (20) and the electromagnet plate (11).

9. A multi-axis laser cutting positioning apparatus as claimed in claim 8, wherein: The bottom surface of the top plate of the frame (10) at both ends of the first waste material falling chute (13) or the second waste material falling chute (14) is fixed with a side guide block (50), the opposite wall surface of the corresponding two side guide blocks (50) is fixed with a limiting block (51) in the middle part, the outer wall surface of the limiting block (51) is formed with an upper insertion slot corresponding to the first waste material falling chute (13) or the second waste material falling chute (14) in the upper part, the bottom surface of the upper insertion slot is formed with a center through slot in the middle part, the outer end of the center through slot extends out of the outer side wall of the limiting block (51), a material receiving groove body (52) is inserted into the center through slot, the bottom of the material receiving groove body (52) is fixed or formed with a bent part (53) on the outer side wall, the bent part (53) is inserted into the edge part of the corresponding upper insertion slot, the bottom surface of the bent part (53) is pressed against the bottom surface of the corresponding upper insertion slot, the material receiving groove body (52) is below and corresponds to the first waste material falling chute (13) or the second waste material falling chute (14); The edge part and the middle part of the bottom surface of the top plate of the frame (10) are fixed with a lower supporting column, and the bottom surface of the lower supporting column is pressed against the ground.

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