Laser cutting device for processing steel structural parts

Abstract

The present invention belongs to the technical field of laser cutting, and discloses a laser cutting device for processing steel structural parts, comprising: a frame, a lateral movable frame is movably installed on the top of the frame in a lateral manner, a longitudinal movable frame is movably installed on the top of the lateral movable frame in a longitudinal manner, a laser cutting head is fixedly installed on the bottom of the longitudinal movable frame, and a dynamic compensation structure is fixedly installed on the back of the laser cutting head; the dynamic compensation structure comprises a mounting bar fixedly installed on the back of the laser cutting head, a movable sleeve is movably installed vertically on the bottom of the mounting bar, a movable column is movably installed vertically inside the movable sleeve, a ball is embedded and installed on the bottom of the movable column, so that a prism and a focusing lens can be dynamically adjusted, and the dynamic focusing compensation technology can effectively eliminate unstable focusing caused by material height changes during the cutting process, ensure that the laser is always focused at the optimal position, and improve the cutting accuracy and stability of the laser cutting machine.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting, and in particular relates to a laser cutting device for processing steel structural parts. Background Art

[0002] Traditional cutting methods are widely used in the processing of structural parts, such as plasma cutting, oxygen cutting, etc. These methods have many disadvantages, such as rough cuts, large residual stress, slow cutting speed, low efficiency, and some cutting methods will produce a lot of spatter and waste residue, polluting the environment; With the development of laser technology, laser cutting technology has been gradually applied to the processing field of metal materials. Laser cutting has the advantages of high cutting accuracy, smooth incision, small heat-affected zone, and high efficiency. However, when cutting thick steel plates, traditional laser cutting devices have problems such as slow cutting speed, high power requirements, and low efficiency. The existing laser cutting device uses static compensation for the condenser or personnel use mechanical adjustment, which makes it inconvenient for the laser cutting device to perform dynamic compensation, thereby affecting the cutting effect of the laser cutting device. Summary of the invention

[0003] The present invention aims at the problem that in the prior art, the laser cutting device uses static compensation for the condenser or personnel use mechanical adjustment, which makes it inconvenient for the laser cutting device to perform dynamic compensation, thereby affecting the cutting effect of the laser cutting device. The present invention proposes the following technical solution: A laser cutting device for processing steel structural parts, comprising: a frame, a lateral moving frame is movably installed on the top of the frame, a longitudinal moving frame is movably installed on the top of the lateral moving frame, a laser cutting head is fixedly installed on the bottom of the longitudinal moving frame, and a dynamic compensation structure is fixedly installed on the back of the laser cutting head; The dynamic compensation structure includes a mounting bar fixedly mounted on the back of the laser cutting head, a movable sleeve being vertically movably mounted on the bottom end of the mounting bar, a movable column being vertically movably mounted inside the movable sleeve, a ball being embedded in the bottom end of the movable column, a movable rod being movably connected to the top end of the movable column, a prism being movably mounted on the top end of the movable rod, and a focusing lens being movably mounted on the bottom end of the prism.

[0004] As a preferred embodiment of the above technical solution, a manual telescopic rod is embedded and installed on one side of the bottom end of the mounting bar, and a threaded sleeve is embedded and installed at a position of the bottom end of the mounting bar close to one side of the manual telescopic rod. A screw is threadedly installed inside the threaded sleeve, and the screw is rotatably installed on the top of the movable sleeve, and the manual telescopic rod is embedded and installed on the top of the movable sleeve.

[0005] As a preferred embodiment of the above technical solution, the top end of the moving rod is rotatably connected to two mounting sleeves, wherein the interior of one of the mounting sleeves is fixedly connected to the prism, and the interior of the other mounting sleeve is fixedly connected to the focusing lens.

[0006] As a preferred embodiment of the above technical solution, the installation sleeve and the top end of the movable rod are both provided with positioning holes, and a fixing pin is slidably connected inside the positioning hole.

[0007] As a preferred embodiment of the above technical solution, a rectangular column is fixedly installed on the top of the moving column, the moving rod is slidably connected to the inside of the rectangular column, a screw is threadedly connected to the inside of the rectangular column, and one end of the screw is in contact with the outside of the moving rod.

[0008] As a preferred embodiment of the above technical solution, a plate lifting assembly is fixedly installed inside the frame, and the plate lifting assembly includes a placement box fixedly installed inside the frame, a guide tube is symmetrically embedded and installed on the top of the placement box, a piston column is vertically movably connected inside the guide tube, a mounting plate is fixedly installed on the top of the piston column, and a roller is rotatably connected between the two mounting plates.

[0009] As a preferred embodiment of the above technical solution, a piston plate is movably connected up and down inside the placement box, a hydraulic rod is fixedly installed at the bottom end of the piston plate, and the fixed end of the hydraulic rod is fixedly installed inside the frame.

[0010] As a preferred embodiment of the above technical solution, the length of the piston column is shortened in a direction from the laser cutting head approaching the longitudinal movable frame.

[0011] As a preferred embodiment of the above technical solution, a placement groove is opened inside the frame, and support legs are symmetrically embedded and installed on both sides of the bottom end of the frame.

[0012] The beneficial effects of the present invention are: (1) The prism and focusing lens can be adjusted dynamically. The dynamic focusing compensation technology can effectively eliminate the unstable focusing caused by the height change of the material during the cutting process, ensure that the laser is always focused at the best position, and improve the cutting accuracy and stability of the laser cutting machine; (2) The cut steel structure can be moved slowly, which makes it easier for operators to pick up the steel structure from the cutting table, avoiding the difficulty of taking objects directly from the vertical edge of the cutting table, and reducing the force that the operator needs to apply, thereby reducing the discomfort and risks caused by excessive operating intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure diagram of a laser cutting device for processing steel structural parts in Example 1 is shown; Figure 2The front view of a laser cutting device for processing a steel structure in Example 1 is shown; Figure 3 What is shown is a schematic diagram of the installation structure of the dynamic compensation structure in Example 1; Figure 4 The figure shows a schematic diagram of the installation structure of the focusing lens in Example 1; Figure 5 The structure diagram of the plate lifting assembly in Example 1 is shown; Figure 6 Shown is a bottom view of the plate lifting assembly in Example 1; Figure 7 Shown is a diagram of the internal structure of the placement box in Example 1.

[0014] In the figure: 1. frame; 2. horizontal movable frame; 3. longitudinal movable frame; 4. laser cutting head; 5. dynamic compensation structure; 51. mounting bar; 52. manual telescopic rod; 53. threaded sleeve; 54. screw rod; 55. movable sleeve; 56. movable column; 57. ball bearing; 58. rectangular column; 59. movable rod; 510. mounting sleeve; 511. prism; 512. focusing lens; 513. screw rod; 6. plate lifting assembly; 61. placement box; 62. guide tube; 63. piston column; 64. roller; 65. hydraulic rod; 66. piston plate; 67. mounting plate; 7. placement slot; 8. support leg. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0016] Example 1 The present invention provides a laser cutting device for processing steel structural parts, such as Figures 1 to 7 As shown, it comprises: a frame 1, a lateral movable frame 2 is installed on the top of the frame 1 in a lateral movable manner, a longitudinal movable frame 3 is installed on the top of the lateral movable frame 2 in a longitudinal movable manner, a laser cutting head 4 is fixedly installed on the bottom of the longitudinal movable frame 3, and a dynamic compensation structure 5 is fixedly installed on the back of the laser cutting head 4; The dynamic compensation structure 5 includes a mounting bar 51 fixedly mounted on the back of the laser cutting head 4, a movable sleeve 55 is vertically movably mounted on the bottom end of the mounting bar 51, a movable column 56 is vertically movably mounted inside the movable sleeve 55, a ball 57 is embedded in the bottom end of the movable column 56, a movable rod 59 is movably connected to the top end of the movable column 56, a prism 511 is movably mounted on the top end of the movable rod 59, and a focusing lens 512 is movably mounted on the bottom end of the prism 511.

[0017] like Figure 3 and Figure 4As shown, a manual telescopic rod 52 is embedded and installed on one side of the bottom end of the mounting bar 51, and a threaded sleeve 53 is embedded and installed at a position near the bottom end of the mounting bar 51 on one side of the manual telescopic rod 52. A screw rod 54 is installed inside the threaded sleeve 53 through a thread. The screw rod 54 is rotatably installed on the top of the moving sleeve 55, and the manual telescopic rod 52 is embedded and installed on the top of the moving sleeve 55. By rotating the screw rod 54 , the screw rod 54 moves inside the threaded sleeve 53 . At this time, under the limiting effect of the manual telescopic rod 52 , the position of the movable sleeve 55 is changed, thereby reducing the difficulty of adjusting the position of the movable sleeve 55 .

[0018] like Figure 3 and Figure 4 As shown, the top of the moving rod 59 is rotatably connected to two mounting sleeves 510, wherein the interior of one mounting sleeve 510 is fixedly connected to the prism 511, and the interior of the other mounting sleeve 510 is fixedly connected to the focusing lens 512; The installation sleeve 510 can facilitate the installation of the prism 511 and the focusing lens 512 , thereby reducing the difficulty of installing the prism 511 and the focusing lens 512 .

[0019] like Figure 3 and Figure 4 As shown, the top of the mounting sleeve 510 and the moving rod 59 are both provided with positioning holes, and a fixing pin is slidably connected inside the positioning hole; The angle of the installation sleeve 510 is rotated 180 degrees, and then the fixing pin is inserted into the positioning hole, so that the installation sleeve 510 and the moving rod 59 are fixed, which changes the difficulty of fixing the moving rod 59 after the position is adjusted.

[0020] like Figure 3 and Figure 4 As shown, a rectangular column 58 is fixedly installed on the top of the moving column 56, and a moving rod 59 is slidably connected to the inside of the rectangular column 58. A screw 513 is threadedly connected to the inside of the rectangular column 58, and one end of the screw 513 is in contact with the outer side of the moving rod 59; It can facilitate the movement of the moving rod 59, and can limit the moving rod 59 when it moves, and can fix the moving rod 59 after it moves, thereby improving the accuracy of the moving rod 59 when it moves, and achieving the purpose of improving the stability of the moving rod 59 after it moves.

[0021] like Figure 5 , Figure 6 and Figure 7As shown, a plate lifting assembly 6 is fixedly installed inside the frame 1, and the plate lifting assembly 6 includes a placement box 61 fixedly installed inside the frame 1, and a guide tube 62 is symmetrically embedded and installed at the top of the placement box 61, and a piston column 63 is vertically movably connected inside the guide tube 62, and a mounting plate 67 is fixedly installed on the top of the piston column 63, and a roller 64 is rotatably connected between the two mounting plates 67; As the liquid inside the placement box 61 rises, the liquid moves along the inside of the guide tube 62, thereby pushing the piston column 63 to rise. When the piston column 63 rises, it drives the mounting plate 67 to rise. When the mounting plate 67 rises, it drives the roller 64 to rise, so that the roller 64 drives the steel structure to rise, which changes the difficulty of the steel structure to rise, thereby preventing the problem of excessive friction between the steel structure and the laser cutting, making it inconvenient to carry.

[0022] like Figure 5 , Figure 6 and Figure 7 As shown, a piston plate 66 is movably connected to the upper and lower parts of the placing box 61, a hydraulic rod 65 is fixedly installed at the bottom end of the piston plate 66, and the fixed end of the hydraulic rod 65 is fixedly installed inside the frame 1; The piston plate 66 is driven to move by the action of the hydraulic rod 65. When the piston plate 66 moves, it can squeeze the liquid inside the placement box 61, thereby changing the difficulty of squeezing the liquid inside the placement box 61, thereby changing the flow speed of the liquid.

[0023] like Figure 5 , Figure 6 and Figure 7 As shown, the length of the piston column 63 is shortened in sequence from the direction in which the laser cutting head 4 approaches the longitudinal moving frame 3; By arranging the long piston rods 63 in stages, a plurality of rollers 64 are arranged in stages, so that the steel structure slowly slides along the surface of the roller 64, thereby increasing the moving speed of the steel structure on the surface of the roller 64 and further increasing the transfer speed of the steel structure.

[0024] like Figure 1 and Figure 2 As shown, a placement slot 7 is provided inside the frame 1, and support legs 8 are symmetrically embedded and installed on both sides of the bottom end of the frame 1; It is convenient to place the plate lifting assembly 6, reduces the area occupied by the plate lifting assembly 6, and enables the steel structure to fit on the workbench surface of the laser cutting machine, while the support legs 8 can support the laser cutting machine.

[0025] Working principle: During the actual use of the device, the plate lifting assembly 6 is located inside the placement groove 7, and the roller 64 in the plate lifting assembly 6 is in contact with the highest point of the ground and the placement table of the rack 1, and then the steel structure is placed on the placement table of the rack 1. Then the personnel rotates the screw rod 54, and the screw rod 54 moves inside the threaded sleeve 53. At this time, under the action of the manual telescopic rod 52, the position of the moving sleeve 55 is changed. After the position of the moving sleeve 55 moves, the moving column 56 is driven to move. After the moving column 56 moves, it drives the ball 57 to fit with the steel structure. Then the personnel rotates the installation sleeve 510, so that the prism 511 and the focusing lens 512 enter the bottom end of the laser cutting head 4, and then moves the moving rod 59, and the moving rod 59 drives the prism 51 through the installation sleeve 510. 1 and the focusing lens 512 enter the predetermined position, and then rotate the screw 513 so that the screw 513 squeezes and fixes the moving rod 59, and then the horizontal moving frame 2 drives the laser cutting head 4 to move horizontally, and the longitudinal moving frame 3 drives the laser cutting head 4 to move longitudinally. At this time, the ball 57 moves on the surface of the steel structure. When a depression occurs on the surface of the steel structure, the ball 57 drives the moving column 56 to move downward. When the moving column 56 moves downward, it drives the prism 511 and the focusing lens 512 to move downward. At this time, the prism 511 and the focusing lens 512 are dynamically adjusted through the depression. The dynamic focusing compensation technology can effectively eliminate the unstable focusing caused by the height change of the material during the cutting process, ensure that the laser is always focused at the best position, and improve the cutting accuracy and stability of the laser cutting machine; Then, when the cutting of the steel structure is completed, the personnel starts the hydraulic rod 65. When the hydraulic rod 65 is running, it drives the piston plate 66 to rise. When the piston plate 66 rises, it squeezes the liquid, so that the liquid enters the bottom end of the piston column 63 along the guide tube 62, and then pushes the piston column 63 to move. When the piston column 63 moves, it drives the mounting plate 67 to move. When the mounting plate 67 moves, it drives the roller 64 to move. Due to the inconsistent lengths of the piston column 63, multiple rollers 64 are tilted, which makes the cut steel structure move slowly. This makes it easier for operators to take the steel structure from the cutting table, avoids the difficulty of removing objects directly from the vertical edge of the cutting table, reduces the force that the staff needs to apply, and reduces the discomfort and risks caused by excessive operating intensity. The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A laser cutting device for processing steel structural parts, characterized in that: include: A frame (1), a lateral movable frame (2) being movably mounted on the top of the frame (1), a longitudinal movable frame (3) being movably mounted on the top of the lateral movable frame (2), a laser cutting head (4) being fixedly mounted on the bottom of the longitudinal movable frame (3), and a dynamic compensation structure (5) being fixedly mounted on the back of the laser cutting head (4); The dynamic compensation structure (5) comprises a mounting bar (51) fixedly mounted on the back of the laser cutting head (4); a movable sleeve (55) is vertically movably mounted on the bottom end of the mounting bar (51); a movable column (56) is vertically movably mounted inside the movable sleeve (55); a ball (57) is embedded and mounted on the bottom end of the movable column (56); a movable rod (59) is movably connected to the top end of the movable column (56); a prism (511) is movably mounted on the top end of the movable rod (59); and a focusing lens (512) is movably mounted on the bottom end of the prism (511).

2. A laser cutting device for processing steel structural parts according to claim 1, characterized in that: A manual telescopic rod (52) is embedded and installed on one side of the bottom end of the installation bar (51); a threaded sleeve (53) is embedded and installed at a position close to one side of the manual telescopic rod (52) at the bottom end of the installation bar (51); a screw rod (54) is installed inside the threaded sleeve (53) through a thread; the screw rod (54) is rotatably installed on the top of the moving sleeve (55); and the manual telescopic rod (52) is embedded and installed on the top of the moving sleeve (55).

3. A laser cutting device for processing steel structural parts according to claim 2, characterized in that: The top end of the moving rod (59) is rotatably connected to two mounting sleeves (510), wherein the interior of one of the mounting sleeves (510) is fixedly connected to a prism (511), and the interior of the other mounting sleeve (510) is fixedly connected to a focusing lens (512).

4. The laser cutting device for processing steel structural parts according to claim 3, characterized in that: The top ends of the mounting sleeve (510) and the moving rod (59) are both provided with positioning holes, and a fixing pin is slidably connected inside the positioning hole.

5. The laser cutting device for processing steel structural parts according to claim 2, characterized in that: A rectangular column (58) is fixedly mounted on the top of the movable column (56), the movable rod (59) is slidably connected to the inside of the rectangular column (58), the inside of the rectangular column (58) is connected to a screw rod (513) via a thread, and one end of the screw rod (513) is in contact with the outside of the movable rod (59).

6. The laser cutting device for processing steel structural parts according to claim 1, characterized in that: A plate lifting assembly (6) is fixedly installed inside the frame (1), and the plate lifting assembly (6) comprises a placement box (61) fixedly installed inside the frame (1), a guide tube (62) is symmetrically embedded and installed at the top of the placement box (61), a piston column (63) is vertically movably connected inside the guide tube (62), a mounting plate (67) is fixedly installed at the top of the piston column (63), and a roller (64) is rotatably connected between the two mounting plates (67).

7. The laser cutting device for processing steel structural parts according to claim 6, characterized in that: A piston plate (66) is movably connected up and down inside the placement box (61), a hydraulic rod (65) is fixedly mounted on the bottom end of the piston plate (66), and a fixed end of the hydraulic rod (65) is fixedly mounted inside the frame (1).

8. The laser cutting device for processing steel structural parts according to claim 6, characterized in that: The length of the piston column (63) is gradually shortened in a direction from the laser cutting head (4) approaching the longitudinal moving frame (3).

9. The laser cutting device for processing steel structural parts according to claim 1, characterized in that: A placement slot (7) is provided inside the frame (1), and support legs (8) are symmetrically embedded and installed on both sides of the bottom end of the frame (1).

Images