A laser cutting mobile platform

Abstract

The present invention relates to the field of laser cutting platforms, and particularly to a laser cutting mobile platform, which includes a frame. The two sides of the frame are provided with longitudinal moving components, and a transverse moving component is arranged across the upper part of the frame. The transverse moving component is connected with a laser cutter. The longitudinal moving component and the transverse moving component drive the laser cutter to move in a plane. A plurality of plates are fixedly arranged in parallel inside the frame. In the present invention, a material plate is supported by a plurality of vertically elastically mounted supporting members. Through the connection of the downward moving component with the longitudinal moving component and the transverse moving component, the longitudinal position of the longitudinal pressing rod is always vertically aligned with the laser cutter, and the longitudinal and transverse positions of the transverse pressing rod are vertically aligned with the laser cutter. By the transverse pressing rod pressing against the lower roller frame in position and the longitudinal pressing rod pressing against the upper roller frame in position, the position of the toothed plate corresponding to the cutting position of the laser cutter is lowered, so that the molten material generated by laser cutting will not adhere to the top of the toothed plate, avoiding the cleaning of the toothed plate and also preventing the top of the toothed plate from being heated and deformed by the laser beam.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting platforms, and particularly to a laser cutting mobile platform. Background Art

[0002] A laser cutting machine has a cutting mobile platform and a laser cutter. The cutting mobile platform is in the shape of a bed body and is used to horizontally carry a material plate. The laser cutter is installed above the cutting mobile platform, and the cutting mobile platform can drive the laser cutter to perform planar movement, so that the laser cutter can fully cut the material plate on the surface of the platform.

[0003] The traditional cutting mobile platform carries the material plate through evenly distributed toothed plates, and moves the laser cutter according to a set cutting path, so that the laser beam of the laser cutter cuts a workpiece with a set shape on the surface of the material plate. However, after the material plate is cut through by the laser beam, the molten material at the cut seam is likely to adhere to the top of the lower toothed plate. After long-term use, more impurities will accumulate on the surface of the toothed plate, making it relatively inconvenient to clean. Moreover, the laser beam that cuts through the material plate also has a burning effect on the top of the toothed plate, which is likely to cause deformation of the top of the toothed plate and affect the horizontal bearing effect of the toothed plate on the material plate. Summary of the Invention

[0004] The purpose of the present invention is to solve the following problems existing in the prior art: after the material plate is cut through by the laser beam, the molten material at the cut seam is likely to adhere to the top of the lower toothed plate. After long-term use, more impurities will accumulate on the surface of the toothed plate, making it relatively inconvenient to clean. Moreover, the laser beam that cuts through the material plate also has a burning effect on the top of the toothed plate, which is likely to cause deformation of the top of the toothed plate and affect the horizontal bearing effect of the toothed plate on the material plate.

[0005] To solve the problems existing in the prior art, the present invention provides a laser cutting mobile platform, including a frame. There are longitudinal movement components on both sides of the frame, and a transverse movement component is arranged across the top of the frame. The transverse movement component is connected with a laser cutter. The longitudinal movement component and the transverse movement component drive the laser cutter to perform planar movement. A number of strip plates are fixedly arranged in parallel inside the frame. A number of support members slide vertically and evenly on the surface of the strip plates. The support members are connected to the strip plates through springs. The tops of a number of support members form a support surface. A lower movement component is arranged at the lower part of the frame. The lower movement component is connected with a transverse pressure bar. The lower movement component is connected with the longitudinal movement component and the transverse movement component, and is used to drive the transverse pressure bar to move planar synchronously with the laser cutter. A number of transverse pressure bars are arranged in a row below the gap of the strip plates. The transverse pressure bars are vertically and elastically slidably connected with the lower movement component through springs. Both ends of the transverse pressure bar and the longitudinal pressure bar are in a shape with the upper surface being inclined upwards, and the transverse pressure bar and the longitudinal pressure bar are vertically and staggeredly distributed. A lower roller frame is arranged at the bottom of the transverse pressure bar. The longitudinal pressure bar is aligned with the lower roller frame and is used to press the lower roller frame downwards. An upper roller frame is arranged at the bottom of the support member. The transverse pressure bar is aligned with the upper roller frame and is used to press the upper roller frame downwards.

[0006] Preferably, the width of the transverse pressure rod is greater than the interval between adjacent lower roller frames, and the width of the longitudinal pressure rod is greater than the interval between adjacent upper roller frames.

[0007] Preferably, the longitudinal movement component includes a longitudinal slide table, and the two sides of the platform are symmetrically sliding linearly. The two sides of the platform are provided with longitudinal screw rods that rotate symmetrically. The ends of the longitudinal screw rods are connected to motors. The longitudinal screw rods are threaded through the longitudinal slide table, and the two ends of the transverse movement component are connected to the longitudinal slide table.

[0008] Preferably, the horizontal movement component includes a horizontal frame, both ends of the horizontal frame are fixedly connected to the longitudinal slide, a horizontal slide is slidably provided on the surface of the horizontal frame, the laser cutter is installed on the surface of the horizontal slide, a first horizontal screw rod is rotatably installed on the surface of the horizontal frame, the end of the first horizontal screw rod is connected to a motor, and the first horizontal screw rod thread passes through the horizontal slide.

[0009] Preferably, the lower moving component includes a horizontal plate, which is placed at the lower part of the platform and parallel to the horizontal plate. Both ends of the horizontal plate are fixedly connected to the longitudinal sliding platform. A second horizontal screw rod rotates parallel to the surface of the horizontal plate. The second horizontal screw rod is connected to the first horizontal screw rod through a transmission chain. A carrier block slides on the surface of the horizontal plate. The second horizontal screw rod thread passes through the carrier block. Several sleeves are fixed on the side of the horizontal plate. The first square rod slides vertically elastically in the sleeve through a spring. The longitudinal pressure rods are fixed one by one on the top of the first square rod. The lower roller frame rotates at the bottom end of the first square rod, and the horizontal pressure rod is fixedly connected to the carrier block.

[0010] Preferably, the lower roller frame rotates at the bottom end of the first square rod.

[0011] Preferably, the support member includes a second square rod, which slides through the strip and is elastically connected to the strip via a spring. A toothed plate is fixed to the top of the second square rod, and the upper roller frame is rotatably mounted on the bottom end of the second square rod.

[0012] Preferably, a rubber block is fixed on the surface of the second square rod, and the rubber block contacts the bottom surface of the strip board.

[0013] Preferably, the cross section of the strip is trapezoidal, and the two side surfaces of the strip are inclined downward.

[0014] Compared with related technologies, the laser cutting mobile platform provided by the present invention has the following beneficial effects:

[0015] The present invention supports a material plate through several vertically elastically mounted support members. Through the connection of the downward movement component with the longitudinal movement component and the transverse movement component, the longitudinal position of a row of longitudinal pressing rods is always vertically aligned with the laser cutter, and the longitudinal position and transverse position of the transverse pressing rods are always vertically aligned with the laser cutter. By the transverse pressing rods squeezing the lower roller frame in alignment and the longitudinal pressing rods squeezing the upper roller frame in alignment, the position of the toothed plate at the corresponding cutting position of the laser cutter drops, preventing the molten material generated by laser cutting from sticking to the top of the toothed plate, eliminating the need for cleaning the toothed plate, and also avoiding the top of the toothed plate from being heated and deformed by the laser beam. Moreover, by the transverse pressing rods and longitudinal pressing rods sliding and squeezing the lower roller frame and the upper roller frame respectively, the toothed plate at the cutting working part of the laser cutter is always kept dropping, while the toothed plates at other positions keep stably supporting the material plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is one of the overall structural schematic diagrams of the present invention;

[0017] Figure 2 is the second of the overall structural schematic diagrams of the present invention;

[0018] Figure 3 is the distribution structural schematic diagram of the strip plate and the longitudinal pressing rods of the present invention;

[0019] Figure 4 is the overall cross-sectional structural schematic diagram of the present invention;

[0020] Figure 5 is the structural schematic diagram of the longitudinal pressing rods aligning with the upper roller frame of the present invention;

[0021] Figure 6 is the structural schematic diagram of the downward movement component of the present invention;

[0022] Figure 7 is the structural schematic diagram of the transverse pressing rods aligning with the lower roller frame of the present invention;

[0023] Figure 8 is the structural schematic diagram of the support member of the present invention.

[0024] Reference numerals in the figures: 1, bench; 11, longitudinal sliding table; 12, longitudinal lead screw; 2, cross frame; 21, transverse sliding table; 22, first transverse lead screw; 3, laser cutter; 4, support member; 41, second square rod; 42, toothed plate; 43, rubber block; 5, cross plate; 51, carrier block; 52, second transverse lead screw; 53, sliding sleeve; 54, first square rod; 55, lower roller frame; 6, transverse pressing rod; 7, longitudinal pressing rod; 8, strip plate; 9, upper roller frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0027] Embodiment 1

[0028] As Figure 1-3 shown, a laser cutting mobile platform includes a frame 1. The frame 1 is a square frame and has four legs at the corner positions.

[0029] As Figure 1 、 4 、5 shown, the longitudinal movement assembly includes a longitudinal slide 11. Two groups of longitudinal slides 11 linearly slide on both sides of the top surface of the frame 1 through slider linear rails. A longitudinal lead screw 12 is rotatably installed inside both sides of the frame 1. Two groups of motors are symmetrically installed at one end of the frame 1. The output shafts of the two groups of motors are respectively connected to the two longitudinal lead screws 12. The longitudinal lead screw 12 threadedly penetrates the longitudinal slide 11.

[0030] As Figure 1 、 6 、5 shown, the transverse movement assembly includes a cross frame 2. The cross frame 2 is horizontally disposed above the frame 1. Two ends of the cross frame 2 are fixedly connected to the two longitudinal slides 11. A transverse slide 21 linearly slides on the surface of the cross frame 2 through a slider and a linear rail. A first transverse lead screw 22 is rotatably installed inside the cross frame 2. A motor is installed at one end of the cross frame 2. The output shaft of the motor is connected to the first transverse lead screw 22. The first transverse lead screw 22 threadedly penetrates the transverse slide 21. The laser cutter 3 is installed on the surface of the transverse slide 21.

[0031] By driving the longitudinal lead screw 12 to rotate by a motor, the longitudinal lead screw 12 threadedly pushes the longitudinal slide 11 to drive the cross frame 2 to move longitudinally on the surface of the frame 1. By driving the first transverse lead screw 22 to rotate by a motor, the first transverse lead screw 22 threadedly pushes the transverse slide 21 to drive the laser cutter 3 to move transversely on the surface of the cross frame 2, realizing the planar movement drive of the laser cutter 3.

[0032] As Figure 3 、 4 、8 shown, a number of strip plates 8 are fixedly arranged in parallel inside the frame 1. There are gaps between the strip plates 8. Support members 4 are equally spaced on the surface of each strip plate 8. The support member 4 includes a second square rod 41. The second square rod 41 vertically slides through the strip plate 8. A spring is arranged on the lower surface of the strip plate 8, so that the second square rod 41 is elastically connected to the strip plate 8. A toothed plate 42 is fixed at the top of the second square rod 41. The toothed plates 42 at the top of each second square rod 41 are arranged in a rectangular distribution. Under normal conditions, the second square rod 41 is pushed upward by the elastic force of the spring, so that the toothed plates 42 are in a parallel state. The tops of a number of toothed plates 42 form a support surface.

[0033] As shown Figure 3-7 in the figure, the downward moving component includes a cross plate 5, which is placed at the lower part of the bench 1, and the cross plate 5 is vertically parallel and aligned with the cross frame 2. Both ends of the cross plate 5 extend upward and are fixedly connected to the longitudinal sliding tables 11. A second cross lead screw 52 is rotatably installed in parallel on the lower surface of the cross plate 5. The end of the first cross lead screw 22 away from the motor is connected to the second cross lead screw 52 through a transmission chain. A load block 51 is slidably installed on the surface of the cross plate 5 through a slider and a linear guide, and the second cross lead screw 52 threadedly penetrates through the load block 51. A horizontal pressure bar 6 is fixed to the side of the load block 51;

[0034] A number of longitudinal pressure bars 7 are arranged below the gaps between the strip plates 8. A number of sliding sleeves 53 are fixed to the side of the cross plate 5. A first square rod 54 vertically penetrates through the sliding sleeve 53, and the first square rod 54 is connected to the sliding sleeve 53 through a spring. The top of the first square rod 54 is fixedly connected to the side of the longitudinal pressure bar 7;

[0035] An upper roller frame 9 is rotatably installed at the bottom side of each second square rod 41. The upper roller frame 9 is perpendicular to the longitudinal pressure bar 7 and points to the gap between the strip plates 8. Under normal conditions, the first square rod 54 slides upward under the action of the spring, so that the horizontal position of the bottom surface of the longitudinal pressure bar 7 is higher than that of the upper roller frame 9;

[0036] A lower roller frame 55 is rotatably installed at the bottom side of each first square rod 54. The horizontal pressure bar 6 is perpendicular to the longitudinal pressure bar 7. The lower roller frame 55 is perpendicular to the horizontal pressure bar 6. The height of the bottom surface of the horizontal pressure bar 6 is lower than the height of the lower roller frame 55;

[0037] As Figure 7 shown in the figure, both ends of the horizontal pressure bar 6 and the longitudinal pressure bar 7 are in an upwardly curved shape. The bottom surfaces of the horizontal pressure bar 6 and the longitudinal pressure bar 7 can be arc-shaped or flat. The upwardly curved height of both ends of the horizontal pressure bar 6 is higher than the height position of the lower roller frame 55 in the free state. After the longitudinal pressure bar 7 sinks, the upwardly curved height of both ends of it is higher than the height position of the upper roller frame 9 in the free state;

[0038] When the longitudinal moving component drives to adjust the longitudinal position of the laser cutter 3, the cross plate 5 moves longitudinally, so that the longitudinal positions of a row of longitudinal pressure bars 7 and the horizontal pressure bar 6 are vertically aligned with the longitudinal position of the laser cutter 3. When the transverse moving component drives to adjust the transverse position of the laser cutter 3, the second cross lead screw 52 rotates accordingly, driving the load block 51 to drive the horizontal pressure bar 6 to move transversely, so that the transverse position of the horizontal pressure bar 6 is vertically aligned with the laser cutter 3. That is to say, the longitudinal position of a row of longitudinal pressure bars 7 is always vertically aligned with the laser cutter 3, and the longitudinal and transverse positions of the horizontal pressure bar 6 are always vertically aligned with the laser cutter 3;

[0039] When the transverse pressing rod 6 moves horizontally, the upturned parts at both ends thereof gradually press down the lower roller frame 55 at the alignment position, so that the first square rod 54 at this position drives the longitudinal pressing rod 7 to move downward against the elastic force, and the downward-moving longitudinal pressing rod 7 will squeeze the upper roller frame 9 at the corresponding position, so that the second square rod 41 at this position drives the toothed plate 42 to drop against the elastic force, so that the position of the toothed plate 42 at the corresponding cutting position of the laser cutter 3 drops, preventing the molten material generated by laser cutting from sticking to the top of the toothed plate 42 and also avoiding the top of the toothed plate 42 from being heated and deformed by the laser beam;

[0040] By sliding and squeezing the lower roller frame 55 and the upper roller frame 9 respectively with the transverse pressing rod 6 and the longitudinal pressing rod 7, the toothed plate 42 at the cutting working part of the laser cutter 3 is always kept dropping, while the toothed plates 42 at other positions keep stably supporting the material plate;

[0041] Wherein, the width of the transverse pressing rod 6 is greater than the interval between adjacent lower roller frames 55, and the width of the longitudinal pressing rod 7 is greater than the interval between adjacent upper roller frames 9. When the laser cutter 3 moves to the gap part between adjacent supports 4, the transverse pressing rod 6 can simultaneously press down the adjacent lower roller frames 55, and the longitudinal pressing rod 7 can simultaneously press down the adjacent upper roller frames 9, so that the adjacent toothed plates 42 at this part drop together, avoiding dead angles;

[0042] As Figure 8 shown, a rubber block 43 is fixed on the surface of the second square rod 41, and the rubber block 43 abuts against the bottom surface of the strip plate 8. When the downward pressure of the longitudinal pressing rod 7 on the upper roller frame 9 is withdrawn by sliding, the second square rod 41 rebounds and resets in time under the spring elastic force. The second square rod 41 is limited by the rubber block 43 abutting against the bottom surface of the strip plate 8. The rubber block 43 is in soft contact with the strip plate 8, reducing the impact strength of the toothed plate 42 on the material plate when the second square rod 41 rebounds and maintaining stable support for the material plate.

[0043] The cross section of the strip plate 8 is trapezoidal, and the two side surfaces of the strip plate 8 are inclined downward, preventing excessive cutting impurities from accumulating on the surface of the strip plate 8.

Claims

1. A laser cutting mobile platform, comprising a frame (1). Longitudinal moving components are provided on both sides of the frame (1), a transverse moving component is arranged across the upper part of the frame (1), the transverse moving component is connected with a laser cutter (3), and the longitudinal moving component and the transverse moving component drive the laser cutter (3) to move in a plane. It is characterized in that, A plurality of strips (8) are fixed in parallel on the inner side of the platform (1), and a plurality of support members (4) are uniformly and vertically slid on the surface of the strips (8). The support members (4) are connected to the strips (8) through springs. The tops of the plurality of support members (4) form a support surface. A lower moving assembly is provided at the lower part of the platform (1), and the lower moving assembly is connected to a transverse pressure rod (6). The lower moving assembly is connected to the longitudinal moving assembly and the transverse moving assembly and is used to drive the transverse pressure rod (6) to synchronize the plane movement of the laser cutter (3). A plurality of transverse pressure rods ( 6), the transverse pressure rod (6) is connected to the lower moving assembly through a spring vertical elastic sliding connection, both ends of the transverse pressure rod (6) and the longitudinal pressure rod (7) are inclined and upturned, and the transverse pressure rod (6) and the longitudinal pressure rod (7) are vertically staggered and distributed, a lower roller frame (55) is provided at the bottom of the transverse pressure rod (6), and the longitudinal pressure rod (7) is aligned with the lower roller frame (55) for pressing the lower roller frame (55) downward, and an upper roller frame (9) is provided at the bottom of the support member (4), and the transverse pressure rod (6) is aligned with the upper roller frame (9) for pressing the upper roller frame (9) downward; The longitudinal moving assembly includes a longitudinal slide (11), the longitudinal slides (11) are symmetrically and linearly slidable on both sides of the platform (1), longitudinal screw rods (12) are symmetrically rotated on both sides of the platform (1), the ends of the longitudinal screw rods (12) are connected to motors, the longitudinal screw rods (12) are threadedly passed through the longitudinal slide (11), and the two ends of the transverse moving assembly are connected to the longitudinal slide (11); The transverse moving assembly includes a transverse frame (2), both ends of the transverse frame (2) are fixedly connected to the longitudinal slide (11), a transverse slide (21) is slidably provided on the surface of the transverse frame (2), the laser cutter (3) is mounted on the surface of the transverse slide (21), a first transverse screw rod (22) is rotatably mounted on the surface of the transverse frame (2), an end of the first transverse screw rod (22) is connected to a motor, and a thread of the first transverse screw rod (22) passes through the transverse slide (21); The lower moving assembly includes a transverse plate (5), which is placed at the bottom of the platform (1) and parallel to the transverse frame (2), and the two ends of the transverse plate (5) are fixedly connected to the longitudinal sliding platform (11), and a second transverse screw rod (52) is rotated parallel to the surface of the transverse plate (5), and the second transverse screw rod (52) is connected to the first transverse screw rod (22) through a transmission chain. A carrier block (51) slides on the surface of the transverse plate (5), and the second transverse screw rod (52) is threaded through the carrier block (51). A plurality of sliding sleeves (53) are fixed on the side of the transverse plate (5), and a first square rod (54) is vertically elastically slid in the sliding sleeve (53) by a spring, and the longitudinal pressure rods (7) are fixed one-to-one on the top of the first square rod (54), and the lower roller frame (55) rotates at the bottom end of the first square rod (54), and the transverse pressure rod (6) is fixedly connected to the carrier block (51).

2. The laser cutting mobile platform according to claim 1, wherein The width of the transverse pressure rod (6) is greater than the interval between adjacent lower roller frames (55), and the width of the longitudinal pressure rod (7) is greater than the interval between adjacent upper roller frames (9).

3. The laser cutting mobile platform according to claim 1, wherein, The lower roller frame (55) rotates at the bottom end of the first square rod (54).

4. The laser cutting mobile platform according to claim 1, wherein, The support member (4) includes a second square rod (41) that slidably penetrates through the strip board (8), and the second square rod (41) is elastically connected to the strip board (8) by a spring. A toothed plate (42) is fixed to the top of the second square rod (41), and the upper roller frame (9) is rotatably mounted at the bottom end of the second square rod (41).

5. The laser cutting mobile platform according to claim 4, characterized in that, A rubber block (43) is fixed to the surface of the second square rod (41), and the rubber block (43) abuts against the bottom surface of the strip board (8).

6. The laser cutting mobile platform according to claim 4, characterized in that, The cross-section of the strip board (8) is trapezoidal, and the two side surfaces of the strip board (8) slope downward.

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