Pressure vessel steel plate laser cutting device

Abstract

The utility model relates to the technical field of laser cutting, in particular to a pressure vessel steel plate laser cutting device. Comprising a machining platform, a fixing frame is fixedly connected to the machining platform, first motors are installed at the two ends of the machining platform correspondingly, lead screws are arranged at the output ends of the two first motors correspondingly, sliding seats are in threaded connection to the two lead screws correspondingly, and a first fixing plate and a second fixing plate are fixedly connected to the front sides of the two sliding seats correspondingly; a second motor is fixedly connected to the rear side of the first fixing plate, an output shaft of the second motor penetrates through the first fixing plate and is fixedly connected with a driving transmission wheel, a driven transmission wheel is rotationally connected to the front side of the second fixing plate, and the driving transmission wheel and the driven transmission wheel are connected through a transmission belt; a transverse plate penetrates through the movable plate, the rear end of the transverse plate is connected with the transmission belt, and a laser cutting machine is fixedly connected to the bottom of the front end of the transverse plate. The utility model provides a laser cutting device to meet high-standard machining requirements of pressure vessel steel plates.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting technical field especially relates to a pressure vessel steel plate laser cutting device. BACKGROUND

[0002] Pressure vessel as special equipment, its manufacturing material adopts high strength, thick gauge steel plate, has strict requirement to cutting precision and cross section quality. Traditional cutting process (such as flame cutting, plasma cutting) has big heat affected zone, cutting surface roughness higher and other defects, easily leads to material mechanics performance deterioration, especially when thick plate cutting, easily produces bevel inclination, hangs slag etc. problem, needs secondary processing finishing, significantly influences production efficiency and part consistency.

[0003] With the popularization of laser cutting technology, it gradually applies to pressure vessel steel plate cutting field by virtue of high energy density, non-contact processing and other advantages. However, the existing laser cutting device still has the following technical bottlenecks when dealing with large size, high thickness steel plate: the conventional single motor drive crossbeam structure is easy to produce cumulative error in long stroke movement due to lead screw deflection, transmission gap and other factors, causes laser head positioning deviation, influences complex contour cutting precision. SUMMARY

[0004] The utility model provides a kind of laser cutting device with high-precision positioning, strong structure rigidity and movement synchronism, to meet the high-standard processing needs of pressure vessel steel plate.

[0005] The technical scheme adopted by the utility model is as follows: a pressure vessel steel plate laser cutting device, comprising a machining platform, the machining platform is fixedly connected with a fixing frame, the machining platform both ends are equipped with first motor, the output end of two first motors is equipped with lead screw, two lead screws are all screw-connected with sliding seat, the front side of two sliding seats is fixedly connected with first fixed plate and second fixed plate respectively, the rear side of first fixed plate is fixedly connected with second motor, the output shaft of second motor is fixedly connected with driving pulley and penetrates through first fixed plate, the front side of second fixed plate is rotatably connected with driven pulley, the driving pulley and driven pulley are connected by transmission belt, the front side of transmission belt is equipped with movable plate, the movable plate is equipped with cross plate and cross plate rear end is connected with transmission belt, the front end bottom of cross plate is fixedly connected with laser cutting machine.

[0006] As a further improvement of the utility model, the top of the fixing frame is provided with two bearing seats, and the two bearing seats are respectively connected with the top ends of the two lead screws.

[0007] As a further improvement of the utility model, two first fixed blocks are fixedly connected to the front side of both ends of the fixing frame, and the two first fixed blocks are respectively located at the top end and the bottom end of the fixing frame and are fixedly connected through a first guide rod between the two first fixed blocks.

[0008] As a further improvement of the utility model, two first fixed blocks are fixedly connected to the front side of both ends of the fixing frame, and the two first fixed blocks are respectively located at the top end and the bottom end of the fixing frame and are fixedly connected through a first guide rod between the two first fixed blocks.

[0009] As a further improvement of the utility model, two first fixed blocks are fixedly connected to the front side of both ends of the fixing frame, and the two first fixed blocks are respectively located at the top end and the bottom end of the fixing frame and are fixedly connected through a first guide rod between the two first fixed blocks.

[0010] As a further improvement of the utility model, two first fixed blocks are fixedly connected to the front side of both ends of the fixing frame, and the two first fixed blocks are respectively located at the top end and the bottom end of the fixing frame and are fixedly connected through a first guide rod between the two first fixed blocks.

[0011] The utility model discloses the beneficial effects: the utility model discloses a first motor and screw rod drive system are set up symmetrically at the both ends of processing platform, and the sliding block on the both sides sliding seat and first guide rod form four point positioning constraint, and the axial rigidity and torsional rigidity of beam movement are improved significantly, effectively restrain the screw rod deflection deformation in long -stroke movement, eliminate the cumulative error of traditional single motor drive, ensure that laser cutting machine realizes high accuracy positioning on large -format steel plate in conjunction with double -motor closed -loop synchronous control strategy. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall structure schematic view of a pressure vessel steel plate laser cutting device of the utility model;

[0013] Figure 2 It is the overall structure schematic view of a pressure vessel steel plate laser cutting device of the utility model; Figure 1 Another perspective schematic view;

[0014] Figure 3 It is the local structure schematic view of a pressure vessel steel plate laser cutting device of the utility model; Figure 1

[0015] Figure 4 It is the local structure schematic view of a pressure vessel steel plate laser cutting device of the utility model. Figure 2

[0016] ​​As shown in the figure: 1, processing platform; 2, fixed frame; 3, first motor; 4, screw rod; 5, sliding seat; 6, first fixed plate; 7, second fixed plate; 8, second motor; 9, driving pulley; 10, driven pulley; 11, transmission belt; 12, movable plate; 13, cross plate; 14, laser cutting machine; 15, bearing seat; 16, first fixed block; 17, first guide rod; 18, first sliding block; 19, second sliding block; 20, second fixed block; 21, second guide rod; 22, third sliding block. DETAILED DESCRIPTION

[0017] In the present specification, the orientation terms such as upper, lower, left, right, front, back, front face, back face, top, bottom and the like mentioned or possibly mentioned are defined with respect to its configuration, which are relative concepts. Therefore, it is possible to change accordingly according to different positions, different use states thereof; therefore, these or other orientation terms should not be interpreted as restrictive terms.

[0018] The singular forms "a", "said", and "the" used in the present specification are intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0019] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the embodiments described herein are only used to explain the present application and not to limit the present application.

[0020] The utility model provides a kind of laser cutting device for pressure vessel steel plate as shown in the drawings Figures 1-4 The utility model provides a kind of laser cutting device for pressure vessel steel plate as shown in the drawings The utility model discloses a kind of laser cutting device for pressure vessel steel plate as shown in the drawings

[0021] As shown in the figure: 1, processing platform; 2, fixed frame; 3, first motor; 4, screw rod; 5, sliding seat; 6, first fixed plate; 7, second fixed plate; 8, second motor; 9, driving pulley; 10, driven pulley; 11, transmission belt; 12, movable plate; 13, cross plate; 14, laser cutting machine; 15, bearing seat; 16, first fixed block; 17, first guide rod; 18, first sliding block; 19, second sliding block; 20, second fixed block; 21, second guide rod; 22, third sliding block. Figures 1-4As shown in the utility model, two bearing seats 15 are arranged on the top of the fixed frame 2, and the two bearing seats 15 are connected with the top ends of two lead screws 4 respectively, two first fixed blocks 16 are fixedly connected to the front sides of the two ends of the fixed frame 2, two first fixed blocks 16 are respectively located at the top end and the bottom end of the fixed frame 2, and the two first fixed blocks 16 are fixedly connected through a first guide rod 17, and two first sliding blocks 18 fixedly connected with the first fixed plate 6 are slidably connected on the first guide rod 17 located on one side of the first fixed plate 6; two second sliding blocks 19 fixedly connected with the second fixed plate 7 are slidably connected on the first guide rod 17 located on one side of the second fixed plate 7, and the sliding cooperation of the first sliding block 18 and the second sliding block 19 on the first guide rod 17 not only enhances the stability of the first fixed plate 6 and the second fixed plate 7 in the horizontal direction, but also further improves the anti-tilting ability of the whole device.

[0022] As Figures 1-4 shown in the utility model, two second fixed blocks 20 are fixedly connected to the front sides of the first fixed plate 6 and the second fixed plate 7, the two second fixed blocks 20 at the same height are fixedly connected through a second guide rod 21, a third sliding block 22 fixedly connected with the movable plate 12 is slidably connected on the second guide rod 21, and the sliding cooperation of the third sliding block 22 on the second guide rod 21 effectively restricts the shaking of the movable plate 12 in the vertical direction, and ensures the stable operation of the laser cutting machine 14 in the cutting process.

[0023] Working principle: in the specific implementation of the utility model, two first motors 3 are started, the output shafts of the two first motors 3 drive two lead screws 4 to rotate synchronously, since the sliding seat 5 is threadedly connected with the lead screw 4, therefore two sliding seats 5 will move axially along the lead screw 4, and then drive the first fixed plate 6 and the second fixed plate 7 to move synchronously, realizing the adjustment of the laser cutting machine 14 in the height direction. At the same time, the second motor 8 is started, the output shaft of the second motor 8 drives the driving transmission wheel 9 to rotate, the driving transmission wheel 9 drives the driven transmission wheel 10 to rotate synchronously through the transmission belt 11, and then drives the movable plate 12 on the transmission belt 11 to do reciprocating motion along the second guide rod 21, realizing the flexible adjustment of the laser cutting machine 14 in the horizontal direction. In this process, the sliding cooperation of the first sliding block 18 and the second sliding block 19 on the first guide rod 17 and the sliding cooperation of the third sliding block 22 on the second guide rod 21 together constitute a four-point positioning constraint system, effectively improve the rigidity and stability of the whole device, and ensure the high-precision positioning of the laser cutting machine 14 on the large-format steel plate. In addition, through the double-motor closed-loop synchronous control strategy, the accumulated error generated by the traditional single-motor driving can be further eliminated, and the cutting precision and efficiency are improved.

[0024] The foregoing embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A laser cutting device for pressure vessel steel plates, comprising a machining platform (1), characterized in that: The machining platform (1) is fixedly connected with a fixing frame (2), both ends of the machining platform (1) are provided with first motors (3), the output ends of the two first motors (3) are provided with lead screws (4), the two lead screws (4) are threadedly connected with sliding seats (5), the front sides of the two sliding seats (5) are fixedly connected with first fixed plates (6) and second fixed plates (7) respectively, the rear side of the first fixed plate (6) is fixedly connected with a second motor (8), the output shaft of the second motor (8) penetrates through the first fixed plate (6) and is fixedly connected with a driving pulley (9), the front side of the second fixed plate (7) is rotatably connected with a driven pulley (10), the driving pulley (9) and the driven pulley (10) are connected through a transmission belt (11), the front side of the transmission belt (11) is provided with a movable plate (12), the movable plate (12) is provided with a cross plate (13) penetratingly, and the rear end of the cross plate (13) is connected with the transmission belt (11), and the front end of the cross plate (13) is fixedly connected with a laser cutting machine (14).

2. A laser cutting device for a pressure vessel steel plate according to claim 1, characterized in that: The top of the fixing frame (2) is provided with two bearing seats (15), and the two bearing seats (15) are connected with the top ends of the two lead screws (4) respectively.

3. The laser cutting device for a pressure vessel steel plate according to claim 1, characterized in that: The front sides of both ends of the fixing frame (2) are fixedly connected with two first fixed blocks (16), the two first fixed blocks (16) are located at the top and bottom ends of the fixing frame (2) respectively, and the two first fixed blocks (16) are fixedly connected through first guide rods (17).

4. The laser cutting apparatus for a pressure vessel steel plate according to claim 3, wherein: The first guide rods (17) located on one side of the first fixed plate (6) are slidably connected with two first sliding blocks (18) fixedly connected with the first fixed plate (6); the first guide rods (17) located on one side of the second fixed plate (7) are slidably connected with two second sliding blocks (19) fixedly connected with the second fixed plate (7).

5. The laser cutting apparatus for a pressure vessel steel plate according to claim 1, wherein: The front sides of the first fixed plate (6) and the second fixed plate (7) are fixedly connected with two second fixed blocks (20), and the second fixed blocks (20) located at the same height are fixedly connected through second guide rods (21).

6. A pressure vessel steel plate laser cutting apparatus according to claim 5, wherein: The second guide rods (21) are slidably connected with third sliding blocks (22) fixedly connected with the movable plate (12).

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