Steel plate cutting device

Abstract

The utility model discloses a steel plate cutting device which comprises a plate cutting rack and a laser cutting assembly. A front shaft plate and a rear shaft plate of the plate cutting rack are fixedly connected through a cross beam base, and a lead screw shaft and a guide shaft are arranged and used for movement of the mounting base and the laser cutting assembly. The laser cutting assembly comprises a mounting bottom plate, a supporting shaft plate, a walkway protection plate, a lead screw shaft, a guide shaft, a laser cutting machine mounting base and a laser cutting machine, and a Z-direction adjusting assembly is arranged between the laser cutting machine mounting base and the laser cutting machine. The ball screw shaft is matched with the guide shaft to achieve precise movement of the laser cutting assembly in the X-axis direction, the Y-axis direction and the Z-axis direction, and the size precision, linearity and stability of steel plate cutting are guaranteed. The laser cutting machine can flexibly move in a three-dimensional space through the independent X-axis driving system, the independent Y-axis driving system and the independent Z-axis driving system, the cutting requirements of complex shapes and angles can be met, the height of the laser cutting machine can be conveniently adjusted according to the thickness of a steel plate through the Z-direction adjusting assembly, and the laser cutting machine has wide industrial application value.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and more specifically, to a steel plate cutting device. Background Technology

[0002] In modern industrial production, steel plate cutting is a crucial processing technology, widely used in numerous fields such as construction, machinery manufacturing, automotive industry, and shipbuilding. With the continuous development of the manufacturing industry, increasingly higher demands are being placed on the precision, efficiency, flexibility, and automation of steel plate cutting.

[0003] Traditional steel plate cutting methods mainly include mechanical cutting (such as shearing and sawing) and thermal cutting (such as flame cutting and plasma cutting). However, these traditional cutting methods have many limitations. While mechanical cutting is relatively simple to operate, its cutting accuracy is limited and cannot meet the needs of high-precision machining. For example, in the field of precision machinery manufacturing, the machining of some parts requires the steel plate to have a dimensional accuracy of millimeters or even smaller, which traditional mechanical cutting can hardly reliably achieve. Moreover, mechanical cutting equipment often lacks flexibility when cutting complex shapes, requiring frequent tool changes or adjustments to equipment parameters, resulting in low production efficiency.

[0004] While thermal cutting can process relatively thick steel plates to some extent, it suffers from problems such as poor cut surface quality and a large heat-affected zone. The heat-affected zone can alter the material properties of the steel plate, such as increasing hardness and decreasing toughness, affecting subsequent processing and performance. Furthermore, the fumes and exhaust gases generated during thermal cutting also have adverse effects on the environment and the health of operators.

[0005] With the continuous development of laser technology, laser cutting has gradually emerged as a new cutting technology. Laser cutting has significant advantages such as non-contact processing, high cutting precision, small heat-affected zone, and good cut surface quality. However, existing laser cutting equipment still has some problems in practical applications.

[0006] Some laser cutting devices suffer from inadequate structural design, resulting in insufficient stability and precision of the laser cutting components during movement. For example, some devices use ordinary lead screws or other transmission methods in their transmission systems, whose precision and rigidity cannot meet the requirements of high-precision cutting, easily leading to transmission errors and affecting the cutting dimensional accuracy. Moreover, in terms of multi-axis motion control, the lack of effective collaborative design makes the laser cutting machine less flexible in three-dimensional space, making it difficult to cut complex shapes and angles.

[0007] Furthermore, some existing laser cutting devices do not adequately consider the load-bearing and positioning of steel plates. During the cutting process, if the steel plate cannot be stably fixed and precisely positioned, even with high-precision laser cutting components, the final cutting quality cannot be guaranteed. At the same time, they have poor adaptability to cutting steel plates of different thicknesses and lack convenient and quick height adjustment functions, affecting the equipment's versatility and work efficiency.

[0008] In summary, developing a novel steel plate cutting device that overcomes the shortcomings of existing technologies and possesses high precision, high stability, high flexibility, and adaptability to cutting steel plates of varying thicknesses has significant practical implications and industrial application value. This invention aims to provide a steel plate cutting device with a rational structural design, precise transmission, stable positioning, and flexible operation in three-dimensional space to meet the growing demands of modern industrial production for steel plate cutting processes. Utility Model Content

[0009] The purpose of this invention is to address the shortcomings of existing technologies by proposing a steel plate cutting device, comprising a cutting frame and a laser cutting assembly.

[0010] The cutting machine frame includes a front axle plate and a rear axle plate disposed at the front end and the rear end; a crossbeam base is disposed between the front axle plate and the rear axle plate, and the front axle plate and the rear axle plate are fixedly connected by the crossbeam base;

[0011] Both the front axle plate and the rear axle plate have through holes for mounting lead screw shafts in the middle. A Y lead screw shaft bearing seat is installed in the through hole for mounting lead screw shafts, and a ball screw shaft Y is installed in the Y lead screw shaft bearing seat. One end of the ball screw shaft Y is connected to the drive motor Y installed on the rear axle plate.

[0012] Guide shaft mounting through holes are also provided on both sides of the lead screw shaft mounting through hole. A guide shaft Y is fixedly installed in the guide shaft mounting through hole, and a mounting seat for easy installation of the base plate is also fixedly installed on the guide shaft Y.

[0013] The laser cutting assembly includes a mounting base plate, on which a left support shaft plate and a right support shaft plate are fixedly mounted respectively on both sides; a walkway guard plate for the laser cutting machine is provided between the left support shaft plate and the right support shaft plate, and the left support shaft plate and the right support shaft plate are fixedly connected through the walkway guard plate;

[0014] The left and right support shaft plates are both provided with X screw shaft mounting through holes in the middle. X screw shaft bearing seats are installed in the X screw shaft mounting through holes, and ball screw shafts X are installed in the X screw shaft bearing seats. One end of the ball screw shaft X is connected to the drive motor X installed on the left support shaft plate.

[0015] The ball screw shaft mounting through hole is further provided with guide shaft mounting through holes on both sides. The guide shaft X is fixedly installed in the guide shaft mounting through holes, and the ball screw shaft X and the guide shaft X are jointly mounted on the laser cutting machine mounting base.

[0016] The laser cutting machine is fixedly mounted on the laser cutting machine mounting base.

[0017] Preferably, a mounting base is fitted on the ball screw shaft Y, and the mounting base has an internal threaded hole in the middle that is threaded to the ball screw shaft Y.

[0018] Preferably, the front axle plate and the rear axle plate are fixedly provided with a plurality of bearing strips for easy placement of steel plates, and the bearing strips together form the bearing surface of the steel plate.

[0019] Preferably, a Z-axis adjustment component is also provided between the laser cutting machine mounting base and the laser cutting machine to facilitate the vertical movement of the laser cutting machine.

[0020] Preferably, the Z-axis adjustment assembly includes a Z-axis support shaft plate, which is fixedly mounted on a laser cutting machine mounting base. The Z-axis support shaft plate has a Z-axis drive shaft mounting hole and a Z-axis guide shaft mounting hole. A ball screw shaft Z is mounted on the Z-axis drive shaft mounting hole via a bearing seat, and a guide shaft Z is fixedly mounted in the Z-axis guide shaft mounting hole. A laser cutting machine mounting block is mounted on both the ball screw shaft Z and the guide shaft Z, and the laser cutting machine mounting block is fixedly mounted to the laser cutting machine.

[0021] Preferably, the crossbeam base is an angle iron plate, and the crossbeam base is provided with bolt mounting holes for easy fixing of the panel cutting machine frame.

[0022] Compared with existing technologies, the advantages of this invention are as follows: This device uses ball screw shafts (ball screw shaft Y on the Y-axis, ball screw shaft X on the X-axis, and ball screw shaft Z on the Z-axis) for transmission. Ball screws are characterized by high precision, high rigidity, and low friction, enabling precise control of the movement of the laser cutting components in all directions (X, Y, and Z axes), ensuring the dimensional accuracy of the steel plate cutting.

[0023] Guide shafts are provided in each axis (Y-axis guide shaft, X-axis guide shaft, Z-axis guide shaft). These guide shafts cooperate with ball screw shafts to further ensure the linearity and smoothness of the laser cutting assembly's movement; this structure prevents the mounting base from shifting during movement, thus guaranteeing the accuracy of laser cutting.

[0024] Equipped with independent X, Y, and Z axis drive systems, the laser cutting machine can move flexibly in three-dimensional space. This means that the device can cut steel plates into various complex shapes and angles, meeting the diverse needs of different users.

[0025] The specially designed Z-axis adjustment component allows for precise vertical adjustment of the laser cutting machine. This feature is extremely useful when cutting steel plates of varying thicknesses, allowing operators to easily adjust the height of the laser cutting machine to ensure cutting quality.

[0026] The load-bearing strips fixedly arranged on the front and rear axle plates form the load-bearing surface of the steel plate. These load-bearing strips not only stably support the steel plate to be cut, preventing it from moving during the cutting process, but also evenly distribute the weight of the steel plate, reducing the risk of frame deformation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a steel plate cutting device proposed in this utility model (top right view).

[0028] Figure 2 This is a schematic diagram of the overall structure of a steel plate cutting device proposed in this utility model (lower left view).

[0029] Figure 3 for Figure 1 A schematic diagram of the structure without walkway guardrails installed.

[0030] In the picture:

[0031] 1. Panel cutting machine frame; 2. Front axle plate; 3. Rear axle plate; 4. Crossbeam base; 5. Ball screw shaft Y; 6. Drive motor Y; 7. Guide shaft Y; 8. Mounting seat; 9. Mounting base plate.

[0032] Left support shaft plate 10, right support shaft plate 11, walkway guard plate 12, ball screw shaft X 13, drive motor X 14, guide shaft X 15, laser cutting machine mounting base 16, laser cutting machine 17;

[0033] Z-axis support plate 21, ball screw shaft Z 22, guide shaft Z 23, laser cutting machine mounting block 24, drive motor Z25. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] Referring to the figures, this embodiment provides a steel plate cutting device, including a cutting frame 1 and a laser cutting assembly.

[0036] The cutting machine frame 1 includes a front axle plate 2 and a rear axle plate 3 disposed at the front end and the rear end; a crossbeam base 4 is disposed between the front axle plate 2 and the rear axle plate 3, and the front axle plate 2 and the rear axle plate 3 are fixedly connected by the crossbeam base 4.

[0037] Both the front axle plate 2 and the rear axle plate 3 have through holes for mounting lead screw shafts in the middle. A Y lead screw shaft bearing seat is installed in the through hole for mounting lead screw shafts, and a ball screw shaft Y5 is installed in the Y lead screw shaft bearing seat. One end of the ball screw shaft Y5 is connected to the drive motor Y6 mounted on the rear axle plate 3.

[0038] Guide shaft mounting through holes are also provided on both sides of the lead screw shaft mounting through hole. A guide shaft Y7 is fixedly installed in the guide shaft mounting through hole, and a mounting seat 8 for easy installation of the mounting base plate is also fixedly installed on the guide shaft Y7.

[0039] The laser cutting assembly includes a mounting base plate 9, on which a left support shaft plate 10 and a right support shaft plate 11 are fixedly mounted respectively on both sides; a walkway guard plate 12 for the laser cutting machine is provided between the left support shaft plate 10 and the right support shaft plate 11, and the left support shaft plate 10 and the right support shaft plate 11 are fixedly connected by the walkway guard plate 12.

[0040] The left support shaft plate 10 and the right support shaft plate 11 are both provided with X screw shaft mounting through holes in the middle. X screw shaft bearing seats are installed in the X screw shaft mounting through holes, and ball screw shafts X13 are installed in the X screw shaft bearing seats. One end of the ball screw shaft X13 is connected to the drive motor X14 installed on the left support shaft plate.

[0041] The X-screw shaft mounting through hole is also provided with guide shaft mounting through holes on both sides. A guide shaft X15 is fixedly installed in the guide shaft mounting through hole, and the ball screw shaft X13 and the guide shaft X15 are jointly mounted on the laser cutting machine mounting base 16.

[0042] A laser cutting machine 17 is fixedly mounted on the laser cutting machine mounting base 16.

[0043] Preferably, the ball screw shaft Y5 is also fitted with a mounting base for easy installation of the base plate, and the mounting base has an internal thread hole in the middle for threaded connection with the ball screw shaft Y5.

[0044] Preferably, a plurality of bearing strips 18 are fixedly arranged on the front axle plate 2 and the rear axle plate 3 to facilitate the placement of steel plates, and the bearing strips 18 together form the bearing surface of the steel plate.

[0045] Preferably, a Z-axis adjustment component is also provided between the laser cutting machine mounting base 16 and the laser cutting machine 17 to facilitate the up-and-down movement of the laser cutting machine.

[0046] Preferably, the Z-axis adjustment assembly includes a Z-axis support shaft plate 21, which is fixedly mounted on a laser cutting machine mounting base. The Z-axis support shaft plate 21 has a Z-axis drive shaft mounting hole and a Z-axis guide shaft mounting hole. A ball screw shaft Z22 is mounted on the Z-axis drive shaft mounting hole via a bearing seat, and a guide shaft Z23 is fixedly mounted in the Z-axis guide shaft mounting hole. A laser cutting machine mounting block 24 (16) is mounted on both the ball screw shaft Z22 and the guide shaft Z23, and the laser cutting machine mounting block 24 (16) is fixedly mounted to the laser cutting machine 17. The ball screw shaft Z22 is connected to a drive motor Z25 mounted on the support shaft plate 21.

[0047] Preferably, the crossbeam base 4 is an angle iron plate, and the crossbeam base 4 is provided with bolt mounting holes for easy fixing of the panel cutting machine frame 1.

[0048] Furthermore, the power supply wires and signal transmission cables of the drive motors X, Y, and Z are all embedded in the drag chain 26 to prevent wear and tear on the power supply wires and signal transmission cables during movement.

[0049] The specific working principle of the above patent:

[0050] I. Principle of motion in the Y-axis direction

[0051] Drive and transmission

[0052] When the drive motor Y, which is mounted on the rear axle plate, is started, the drive motor Y will drive the ball screw shaft Y to rotate.

[0053] A mounting base is fitted onto the ball screw shaft Y, and the mounting base has an internal threaded hole in the middle for threaded connection with the ball screw shaft Y. Due to the rotation of the ball screw shaft Y, according to the principle of threaded transmission, the mounting base will move along the axial direction (i.e., the Y-axis direction) of the ball screw shaft Y.

[0054] Orientation and Stability

[0055] The mounting base is also fixed to the guide shaft Y, which is installed in the guide shaft mounting through holes of the front and rear axle plates. The function of the guide shaft Y is to ensure the straightness of the mounting base when it moves in the Y-axis direction, prevent it from deviating, and thus enable the laser cutting assembly mounted on the mounting base to move smoothly in the Y-axis direction.

[0056] II. Principle of Motion in the X-axis Direction

[0057] Drive and transmission

[0058] In the X-axis direction, when the drive motor X mounted on the rear axle plate is started, the drive motor X will drive the ball screw shaft X to rotate.

[0059] The ball screw shaft X is mounted in the X screw shaft mounting through hole of the left and right support shaft plates via the X screw shaft bearing housing. A laser cutting machine mounting bracket is mounted on the ball screw shaft X, and the laser cutting machine mounting bracket moves in the X-axis direction as the ball screw shaft X rotates.

[0060] Orientation and Stability

[0061] Meanwhile, the laser cutting machine mounting base is also mounted on guide shaft X, which is installed within the guide shaft mounting through holes of the left and right support shaft plates. Guide shaft X ensures the linearity and stability of the laser cutting machine mounting base's movement in the X-axis direction.

[0062] III. Principle of Motion in the Z-Axis Direction

[0063] Drive and transmission

[0064] The Z-axis adjustment assembly is used to control the movement of the laser cutting machine in the Z-axis direction (vertical direction). In the Z-axis adjustment assembly, when the ball screw shaft Z is driven to rotate (the ball screw shaft Z is mounted on the Z-axis drive shaft mounting hole of the Z-axis support shaft plate through a bearing housing),

[0065] A laser cutting machine mounting block is installed on the ball screw shaft Z. The laser cutting machine mounting block will move in the Z-axis direction according to the rotation of the ball screw shaft Z.

[0066] Orientation and Stability

[0067] The laser cutting machine mounting block is also mounted on the guide shaft Z, which is installed in the Z-direction guide shaft mounting hole of the Z-direction support shaft plate to ensure the stability and straightness of the laser cutting machine mounting block in the Z-axis direction.

[0068] IV. Laser Cutting Principle

[0069] Cutting process

[0070] Once the laser cutting machine mounting base has been moved to the appropriate position in the X and Y axis directions, and the laser cutting machine has been adjusted to the appropriate height via the Z-axis adjustment component, the laser cutting machine will start.

[0071] A laser cutting machine emits a high-energy-density laser beam that irradiates a steel plate placed on a support surface composed of steel strips. The energy of the laser beam causes the steel plate to melt or vaporize rapidly in a localized area, thus achieving the cutting of the steel plate.

[0072] Bearing and positioning

[0073] The load-bearing strips on the front and rear axle plates stably support the steel plate, preventing it from shifting during cutting and ensuring cutting accuracy and quality. Simultaneously, the stable structure of the entire cutting machine frame provides reliable support and assurance for the laser cutting process.

[0074] Compared to existing technologies, this device uses ball screw shafts (Y-axis ball screw shaft Y, X-axis ball screw shaft X, and Z-axis ball screw shaft Z) for transmission. Ball screws are characterized by high precision, high rigidity, and low friction, enabling precise control of the laser cutting components' movement in all directions (X, Y, and Z axes), ensuring the dimensional accuracy of the steel plate cutting.

[0075] Guide shafts are provided in each axis (Y-axis guide shaft, X-axis guide shaft, Z-axis guide shaft). These guide shafts cooperate with ball screw shafts to further ensure the linearity and smoothness of the laser cutting assembly's movement; this structure prevents the mounting base from shifting during movement, thus guaranteeing the accuracy of laser cutting.

[0076] Equipped with independent X, Y, and Z axis drive systems, the laser cutting machine can move flexibly in three-dimensional space. This means that the device can cut steel plates into various complex shapes and angles, meeting the diverse needs of different users.

[0077] The specially designed Z-axis adjustment component allows for precise vertical adjustment of the laser cutting machine. This feature is extremely useful when cutting steel plates of varying thicknesses, allowing operators to easily adjust the height of the laser cutting machine to ensure cutting quality.

[0078] The load-bearing strips fixedly arranged on the front and rear axle plates form the load-bearing surface of the steel plate. These load-bearing strips not only stably support the steel plate to be cut, preventing it from moving during the cutting process, but also evenly distribute the weight of the steel plate, reducing the risk of frame deformation.

[0079] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be covered within the protection scope of this utility model.

[0080] Furthermore, it should be understood in the description of this utility model that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0081] Furthermore, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A steel plate cutting device, characterized in that, Including panel cutting machine frame and laser cutting components, The cutting machine frame includes a front axle plate and a rear axle plate disposed at the front end and the rear end; a crossbeam base is disposed between the front axle plate and the rear axle plate, and the front axle plate and the rear axle plate are fixedly connected by the crossbeam base; Both the front axle plate and the rear axle plate have through holes for mounting lead screw shafts in the middle. A Y lead screw shaft bearing seat is installed in the through hole for mounting lead screw shafts, and a ball screw shaft Y is installed in the Y lead screw shaft bearing seat. One end of the ball screw shaft Y is connected to the drive motor Y installed on the rear axle plate. Guide shaft mounting through holes are also provided on both sides of the lead screw shaft mounting through hole. A guide shaft Y is fixedly installed in the guide shaft mounting through hole, and a mounting seat for easy installation of the base plate is also fixedly installed on the guide shaft Y. The laser cutting assembly includes a mounting base plate, on which a left support shaft plate and a right support shaft plate are fixedly mounted respectively on both sides; a walkway guard plate for the laser cutting machine is provided between the left support shaft plate and the right support shaft plate, and the left support shaft plate and the right support shaft plate are fixedly connected through the walkway guard plate; The left and right support shaft plates are both provided with X screw shaft mounting through holes in the middle. X screw shaft bearing seats are installed in the X screw shaft mounting through holes, and ball screw shafts X are installed in the X screw shaft bearing seats. One end of the ball screw shaft X is connected to the drive motor X installed on the left support shaft plate. The ball screw shaft mounting through hole is further provided with guide shaft mounting through holes on both sides. The guide shaft X is fixedly installed in the guide shaft mounting through holes, and the ball screw shaft X and the guide shaft X are jointly mounted on the laser cutting machine mounting base. The laser cutting machine is fixedly mounted on the laser cutting machine mounting base.

2. The steel plate cutting device according to claim 1, characterized in that, A mounting base is fitted onto the ball screw shaft Y, and the mounting base has an internal threaded hole in the middle that is threaded to connect with the ball screw shaft Y.

3. The steel plate cutting device according to claim 1, characterized in that, Multiple bearing strips are fixedly arranged on the front axle plate and the rear axle plate to facilitate the placement of steel plates. The bearing strips together form the bearing surface of the steel plates.

4. The steel plate cutting device according to claim 1, characterized in that, A Z-axis adjustment component is also provided between the laser cutting machine mounting base and the laser cutting machine to facilitate the up-and-down movement of the laser cutting machine.

5. A steel plate cutting device according to claim 4, characterized in that, The Z-axis adjustment assembly includes a Z-axis support shaft plate, which is fixedly mounted on a laser cutting machine mounting base. The Z-axis support shaft plate has a Z-axis drive shaft mounting hole and a Z-axis guide shaft mounting hole. A ball screw shaft Z is mounted on the Z-axis drive shaft mounting hole via a bearing seat, and a guide shaft Z is fixedly mounted in the Z-axis guide shaft mounting hole. A laser cutting machine mounting block is mounted on both the ball screw shaft Z and the guide shaft Z, and the laser cutting machine mounting block is fixedly mounted to the laser cutting machine.

6. The steel plate cutting device according to claim 1, characterized in that, The crossbeam base is an angle iron plate, and bolt mounting holes are provided on the crossbeam base to facilitate fixing the panel cutting machine frame.

7. A steel plate cutting device according to claim 1, characterized in that, The power supply wires and signal transmission cables of the drive motors X, Y, and Z are all buried in the drag chain to prevent wear and tear on the power supply wires and signal transmission cables during movement.

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