Synchronous lifting structure of laser cutting machine tool

Abstract

The invention relates to the technical field of cutting machine tools, in particular to a laser cutting machine tool synchronous lifting structure which comprises a plurality of lifting mechanisms arranged on the two sides of a machine tool body at intervals, and each lifting mechanism comprises a supporting base arranged at the bottom of the machine tool body and a working hydraulic cylinder arranged at one end of the top of the supporting base. The synchronous hydraulic cylinder is arranged at the other end of the top of the lower supporting base, the axis of the working hydraulic cylinder and the axis of the synchronous hydraulic cylinder are parallel and perpendicular to the ground, a connecting vertical plate fixed to the bed body is arranged on one side of the top of the supporting base, and a guide assembly is arranged between the working hydraulic cylinder and the synchronous hydraulic cylinder. Strength of each component can be symmetrically distributed in the lifting process of the bed body, inclination or uneven lifting of the bed body is avoided, lifting stability and lifting height consistency of the bed body are ensured, meanwhile, it is ensured that the bed body can be accurately adjusted to the required height, meanwhile, the condition that the bed body deviates at any time is avoided, and the bed body is convenient to use. And the cutting precision and the cutting quality in the laser cutting process are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting machine tools, and particularly to a synchronous lifting structure for a laser cutting machine tool. Background Art

[0002] Currently, during the processing of some metal or non-metal materials, a laser cutting machine is used for cutting. To ensure the cutting quality, a synchronous lifting structure is provided on the laser cutting machine body, which can automatically adjust the distance between the focus and the surface of the material according to the height change of the material, ensuring that the focus of the laser beam is always in the best position. Most of the existing laser cutting machine bodies are lifted by multiple hydraulic cylinders, but the bed body is prone to deviation during the lifting process, affecting the stability of the bed body during lifting, resulting in a certain error in the cutting material and a decrease in the cutting accuracy of the material. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a synchronous lifting structure for a laser cutting machine tool, which solves the problem of poor stability during lifting in the prior art and resulting errors in material cutting.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A synchronous lifting structure for a laser cutting machine tool, including a plurality of spaced-apart lifting mechanisms arranged on both sides of the bed body. The lifting mechanism includes a support base provided at the bottom of the bed body, a working hydraulic cylinder provided at one end of the top of the support base, and a synchronous hydraulic cylinder provided at the other end of the top of the lower support seat. The axes of the working hydraulic cylinder and the synchronous hydraulic cylinder are parallel and perpendicular to the ground. A connecting vertical plate fixed to the bed body is provided on one side of the top of the support base. A guiding component for providing a guiding effect during the lifting of the bed body is provided between the working hydraulic cylinder and the synchronous hydraulic cylinder.

[0005] As a further optimized solution of the present invention, a hydraulic station for providing power required for the working hydraulic cylinder and the synchronous hydraulic cylinder is provided at one end of the bed body 1. An operating platform for adjusting the working parameters of the hydraulic station to control the lifting of the bed body is provided on one side of the hydraulic station.

[0006] As a further optimized solution of the present invention, upper support seats are respectively and fixedly provided at both ends of the top of the connecting vertical plate. Connecting cross shafts are fixedly provided at the tops of the working hydraulic cylinder and the synchronous hydraulic cylinder. Both ends of the connecting cross shaft are rotatably connected to both ends of the upper support seat through bearings.

[0007] As a further optimized solution of the present invention, connecting ends are respectively and fixedly provided at the telescopic ends of the bottoms of the working hydraulic cylinder and the synchronous hydraulic cylinder. Lower support seats are respectively and fixedly provided at both ends of the top of the support base. A movable cross shaft is provided through the top of the lower support seat.

[0008] As a further optimized solution of the present invention, the middle part of the movable horizontal shaft penetrates through the connection end and is rotatably connected thereto, and a movable pin is inserted into one end of the movable horizontal shaft.

[0009] As a further optimized solution of the present invention, the guiding assembly includes a supporting vertical rail disposed between the working hydraulic cylinder and the synchronous hydraulic cylinder and fixed to the supporting base, and a sliding vertical rod fixedly installed on one side of the connecting vertical plate. Reinforcing support pieces are respectively fixedly arranged around the supporting vertical rail.

[0010] As a further optimized solution of the present invention, a roller located inside the supporting vertical rail is slidably arranged on one side of the sliding vertical rod, and a supporting horizontal shaft fixed to the supporting vertical rail is rotatably arranged at the center of the roller.

[0011] As a further optimized solution of the present invention, a limiting cover is fixedly installed on one side of the supporting base, and a movable cover fixed to the bed body is slidably arranged on the top of the limiting cover.

[0012] As a further optimized solution of the present invention, connecting cross bars are respectively fixedly arranged on two adjacent supporting bases.

[0013] By means of the above technical solutions, the present invention provides a synchronous lifting structure for a laser cutting machine tool. Compared with the prior art, it has at least the following beneficial effects: 1. The present invention sets multiple lifting mechanisms to stably lift the bed body. Through the mutual cooperation of the working hydraulic cylinder and the synchronous hydraulic cylinder, the working hydraulic cylinder is responsible for the main lifting to ensure that the machine tool bed body can be lifted smoothly and precisely. The synchronous hydraulic cylinder plays a role of balance and synchronization to ensure the height consistency during the lifting process, so that the forces of each component during the lifting process can be symmetrically distributed, avoiding the bed body from tilting or uneven lifting, ensuring the stability of the bed body lifting, and at the same time ensuring that the bed body can be accurately adjusted to the required height and avoiding any deviation of the bed body, guaranteeing the cutting accuracy during the laser cutting process.

[0014] 2. The present invention provides stable support through the guiding assembly during the lifting process of the bed body. When the bed body moves, the sliding vertical rod is driven by the connecting vertical plate. One side of the sliding vertical rod moves inside the roller to keep the bed body moving smoothly during the lifting process, reducing any errors caused by vibration or instability, effectively restricting the deviation or out-of-control situation of the bed body during the lifting process, helping to improve the operation safety, and avoiding equipment failures or safety accidents caused by unstable lifting actions.

[0015] 3. In the present invention, an upper support seat is fixed to the tops of the working hydraulic cylinder and the synchronous hydraulic cylinder through a connecting vertical plate. A lower support seat is fixed to the telescopic ends at the bottoms of the working hydraulic cylinder and the synchronous hydraulic cylinder through a support base. When the working hydraulic cylinder and the synchronous hydraulic cylinder work synchronously, they drive the bed body to move up and down by pushing the telescopic ends, which can avoid cutting errors caused by the inclination or uneven lifting of the bed body, ensure that the height of the laser beam remains consistent throughout the cutting process, and improve the cutting accuracy and quality.

[0016] 4. In the present invention, the smooth and synchronous lifting actions are performed by the working hydraulic cylinder and the synchronous hydraulic cylinder, which can reduce the pressure on the hydraulic system and mechanical components, reduce the wear of the equipment, extend the service life of the laser cutting machine tool, enable the operator to quickly and accurately adjust the height of the bed body, save the adjustment time, and thus improve the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the inner partial structure of the present invention; Figure 3 is a front sectional view of the present invention; Figure 4 is Figure 3 an enlarged schematic diagram of part A of Figure 5 is a schematic diagram of the partial structure of the lifting mechanism of the present invention; Figure 6 is an exploded schematic diagram of the guiding assembly of the present invention.

[0018] In the figures: 1. Bed body; 2. Hydraulic station; 3. Operating platform; 4. Lifting mechanism; 41. Support base; 43. Working hydraulic cylinder; 44. Synchronous hydraulic cylinder; 45. Connecting vertical plate; 451. Upper support seat; 452. Connecting horizontal shaft; 453. Connecting end; 454. Lower support seat; 455. Movable horizontal shaft; 456. Movable pin; 46. Guiding assembly; 461. Support vertical rail; 462. Sliding vertical rod; 463. Support horizontal shaft; 464. Roller; 465. Reinforcing support piece; 47. Limiting cover; 48. Movable cover; 49. Connecting cross bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] First Embodiment During the laser cutting process, if the distance between the focus and the material surface is too close or too far, it will affect the cutting effect. By lifting and lowering the bed body 1, the laser head can maintain the optimal focus distance, making the cutting surface smoother and reducing burrs and unevenness during the cutting process. However, due to the fact that some current bed bodies 1 are prone to deviation during lifting and lowering, resulting in errors in the cut materials. To avoid the bed body 1 from tilting or unevenly lifting and ensure the stability of the bed body 1 during lifting, as Figure 1 - Figure 4 shown, this embodiment provides a synchronous lifting structure for a laser cutting machine tool, which consists of a bed body 1 and four lifting mechanisms 4. The four lifting mechanisms 4 are respectively arranged on both sides of the bed body 1 and are spaced along the length direction of the bed body 1. The lifting mechanisms 4 can also be set to six, eight, etc. A plurality of lifting mechanisms 4 on one side of the bed body 1 are equidistantly distributed.

[0021] One end of the bed body 1 is provided with a hydraulic station 2 responsible for providing power required for the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44. Through the control of the hydraulic system of the hydraulic station 2, precise coordination between the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 can be achieved. The function of the synchronous hydraulic cylinder 44 is to ensure the synchronous movement of both sides of the bed body 1 during lifting, avoiding the bed body 1 from tilting or having errors. At the same time, the hydraulic station 2 can precisely control the lifting of the bed body 1 according to the preset programs and parameters to ensure that the bed body 1 always maintains a horizontal position. One side of the hydraulic station 2 is provided with an operating platform 3 for adjusting the working parameters of the hydraulic station 2 to control the lifting of the bed body 1, enabling the laser cutting machine to adjust the position of the bed body 1 according to the different thicknesses of the materials to ensure that the laser head maintains the optimal distance from the workpiece surface. At the same time, the operating platform 3 ensures the consistent lifting of both sides of the bed body 1 through the synchronous hydraulic cylinder 44, which can effectively avoid the bed body 1 from tilting or being uneven, ensuring the stability and precision during the laser cutting process.

[0022] To avoid cutting errors caused by the inclination or uneven lifting of the bed body 1 and improve the cutting accuracy and quality, the lifting mechanism 4 includes a support base 41 provided at the bottom of the bed body 1, a working hydraulic cylinder 43 provided at one end of the top of the support base 41, and a synchronous hydraulic cylinder 44 provided at the other end of the top of the lower support seat 454. The axes of the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 are parallel and perpendicular to the ground. The working hydraulic cylinder 43 is responsible for the main lifting to ensure that the machine tool bed body 1 can be lifted smoothly and accurately, while the synchronous hydraulic cylinder 44 plays a role in balancing and synchronization to ensure the height consistency during the lifting process. A connecting vertical plate 45 fixed to the bed body 1 is provided on one side of the top of the support base 41. When the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 work synchronously, they move by pushing the telescopic ends, and then drive the bed body 1 to perform a lifting movement through the connecting vertical plate 45.

[0023] A limit cover 47 is connected to one side of the support base 41 by bolts. An activity cover 48 connected to the bed body 1 by bolts is slidably provided on the top of the limit cover 47. The limit cover 47 and the activity cover 48 help to protect the components inside the lifting mechanism 4, and the limit cover 47 and the activity cover 48 are easy to disassemble, enabling quick maintenance or repair of the lifting mechanism 4. Connecting cross bars 49 are respectively and fixedly provided on two adjacent support bases 41. The connecting cross bars 49 make the four support bases 41 form a whole, thereby enhancing the stability of the support for the bed body 1.

[0024] Second Embodiment To enhance the stability of the bed body 1 during lifting, avoid any deviation of the bed body 1, and ensure the cutting accuracy during the laser cutting process, as Figure 3 - Figure 5 shown, the specific implementation method of this embodiment is as follows: Upper support seats 451 are respectively and fixedly provided at both ends of the top of the connecting vertical plate 45. Connecting cross shafts 452 are fixedly provided at the tops of both the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44. Both ends of the connecting cross shaft 452 are rotatably connected to both ends of the upper support seat 451 through bearings. Connecting ends 453 are respectively and fixedly provided at the telescopic ends of the bottoms of the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44. Lower support seats 454 are respectively and fixedly provided at both ends of the top of the support base 41. A movable cross shaft 455 is provided through the top of the lower support seat 454. The middle of the movable cross shaft 455 passes through the connecting end 453 and is rotatably connected thereto. A movable pin 456 is inserted into one end of the movable cross shaft 455.

[0025] When the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 work synchronously, the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 push the telescopic ends at their bottoms to move. The telescopic ends are installed on the lower support base 454 through the connecting end 453, and through the reaction force, the cylinder bodies of the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 are pushed upward. The working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 are connected to the connecting vertical plate 45 through the upper support base 451 at their tops, thereby pushing the connecting vertical plate 45 upward, and the connecting vertical plate 45 pushes the bed body 1 upward to achieve the lifting of the bed body 1.

[0026] Third Embodiment To maintain the smooth movement of the bed body 1 during the lifting process and reduce any errors caused by vibration or instability, such as Figure 6 As shown, in this embodiment, a guiding assembly 46 for parallel movement during the lifting of the bed body 1 is provided between the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44. The specific implementation is that the guiding assembly 46 includes a supporting vertical rail 461 disposed between the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 and fixed to the supporting base 41, and a sliding vertical rod 462 fixedly installed on one side of the connecting vertical plate 45. The cross-section of the sliding vertical rod 462 is set as a regular hexagon. A roller 464 located inside the supporting vertical rail 461 is slidably disposed on one side of the sliding vertical rod 462. One side of the sliding vertical rod 462 is embedded inside the roller 464. When the sliding vertical rod 462 moves, it drives the roller 464 to rotate. A supporting horizontal shaft 463 fixed to the supporting vertical rail 461 is rotatably disposed at the axis of the roller 464. Reinforcing support pieces 465 are respectively fixedly disposed around the supporting vertical rail 461. The cross-section of the reinforcing support piece 465 is set as a trapezoid, which improves the stability of the supporting vertical rail 461 on the supporting base 41.

[0027] When the bed body 1 moves, it drives the connecting vertical plate 45 to perform a lifting movement. The connecting vertical plate 45 drives the sliding vertical rod 462 thereon to move. One side of the sliding vertical rod 462 moves inside the roller 464, causing the roller 464 to rotate around the supporting horizontal shaft 463, maintaining the stable movement of the sliding vertical rod 462 along the vertical direction during lifting, and at the same time reducing the wear of the sliding vertical rod 462 and extending its service life.

[0028] The present invention uses multiple lifting mechanisms 4 to stably lift the bed body 1, and uses the mutual cooperation of the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44. The working hydraulic cylinder 43 is responsible for the main lifting to ensure that the machine tool bed body 1 can be lifted smoothly and precisely, while the synchronous hydraulic cylinder 44 plays a role of balance and synchronization. At the same time, the guiding assembly 46 provides stable support during the lifting of the bed body 1 to prevent the bed body 1 from tilting or uneven lifting, ensuring the stability of the lifting of the bed body 1.

[0029] During the actual use of the lifting structure, the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 are simultaneously activated. The working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 push the telescopic ends at their bottoms to move. The telescopic ends are installed on the lower support base 454 through the connecting end 453, and through the reaction force, the cylinders of the working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 are pushed upward. The working hydraulic cylinder 43 and the synchronous hydraulic cylinder 44 push the connecting vertical plate 45 upward through the upper support base 451 at their tops. At the same time, the connecting vertical plate 45 drives the sliding vertical rod 462 thereon to move. One side of the sliding vertical rod 462 moves inside the roller 464, causing the roller 464 to rotate around the support cross shaft 463, keeping the sliding vertical rod 462 moving stably along the vertical direction during lifting. The connecting vertical plate 45 pushes the bed body 1 upward to achieve the lifting of the bed body 1.

[0030] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, substitutions and deformations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Synchronous lifting structure of a laser cutting machine tool, characterized in that: It includes a number of lifting mechanisms (4) arranged at intervals on both sides of the bed body (1); The lifting mechanism (4) includes a support base (41) arranged at the bottom of the bed body (1), a working hydraulic cylinder (43) arranged at one end of the top of the support base (41), and a synchronous hydraulic cylinder (44) arranged at the other end of the top of the support base (41). The axes of the working hydraulic cylinder (43) and the synchronous hydraulic cylinder (44) are parallel and perpendicular to the ground. A connecting vertical plate (45) fixed to the bed body (1) is arranged on one side of the top of the support base (41). A guiding component (46) for providing a guiding effect when the bed body (1) is lifted is arranged between the working hydraulic cylinder (43) and the synchronous hydraulic cylinder (44).

2. The synchronous lifting structure of the laser cutting machine tool according to claim 1, characterized in that: It also includes a hydraulic station (2) responsible for providing power required by the working hydraulic cylinder (43) and the synchronous hydraulic cylinder (44). An operating platform (3) for adjusting the working parameters of the hydraulic station (2) to control the lifting of the bed body (1) is arranged on one side of the hydraulic station (2).

3. The synchronous lifting structure of the laser cutting machine tool according to claim 1, characterized in that: Upper support seats (451) are respectively and fixedly arranged at both ends of the top of the connecting vertical plate (45). Connecting cross shafts (452) are fixedly arranged at the tops of the working hydraulic cylinder (43) and the synchronous hydraulic cylinder (44). Both ends of the connecting cross shaft (452) are rotatably connected to both ends of the upper support seat (451) through bearings.

4. The synchronous lifting structure of the laser cutting machine tool according to claim 1, wherein: Connecting ends (453) are respectively and fixedly arranged at the telescopic ends of the bottoms of the working hydraulic cylinder (43) and the synchronous hydraulic cylinder (44). Lower support seats (454) are respectively and fixedly arranged at both ends of the top of the support base (41). A movable cross shaft (455) is arranged through the top of the lower support seat (454).

5. The synchronous lifting structure of the laser cutting machine tool according to claim 4, wherein: The middle of the movable cross shaft (455) penetrates through the connecting end (453) and is rotatably connected to it. A movable pin (456) is inserted on one end of the movable cross shaft (455).

6. The synchronous lifting structure of the laser cutting machine tool according to claim 1, wherein: The guiding component (46) includes a support vertical rail (461) arranged between the working hydraulic cylinder (43) and the synchronous hydraulic cylinder (44) and fixed to the support base (41), and a sliding vertical rod (462) fixedly installed on one side of the connecting vertical plate (45). Reinforcing support pieces (465) are respectively and fixedly arranged around the support vertical rail (461).

7. The synchronous lifting structure of the laser cutting machine tool according to claim 6, characterized in that: A roller (464) located inside the support vertical rail (461) is slidably arranged on one side of the sliding vertical rod (462). A support cross shaft (463) fixed to the support vertical rail (461) is rotatably arranged at the axis center of the roller (464).

8. The synchronous lifting structure of the laser cutting machine tool according to claim 1, characterized in that: A limit cover (47) is fixedly installed on one side of the support base (41). A movable cover (48) fixed to the bed body (1) is slidably arranged on the top of the limit cover (47).

9. The synchronous lifting structure of the laser cutting machine tool according to claim 1, wherein: A connecting cross bar (49) is fixedly arranged between two adjacent support bases (41).

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