Laser cutting workpiece positioning device

Abstract

The utility model discloses a laser cutting workpiece positioning device which comprises a working table, and the top end of the working table is fixedly connected with two rotating assemblies. The two rotating assemblies comprise arc-shaped plates, rack plates are fixedly connected to the back faces of the arc-shaped plates, rotating gears are meshed with the back faces of the rack plates, connecting rods are fixedly connected to the inner walls of the rotating gears, and rotating plates are fixedly connected to the ends, away from the arc-shaped plates, of the connecting rods. The rotating assemblies are additionally arranged on the left side and the right side of the positioning assembly and controlled through the driving assembly, when the angle of a machined part is adjusted, the first motor, the first rotating shaft and the driving gear start to rotate, and due to the fact that the driving gear is meshed with the transmission gear, the transmission gear drives the second rotating shaft and the rotating plate to rotate; the positioning assembly is driven to rotate in the mounting frame so as to adjust the angle of the machined part, and meanwhile, the rotating gear on the rotating plate rotates on the rack plate so as to improve the stability of the positioning assembly during rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a laser cutting workpiece positioning device. Background Art

[0002] Laser cutting replaces traditional mechanical knives with invisible light beams. It has the characteristics of high precision, fast cutting, no restrictions on cutting patterns, automatic typesetting to save materials, smooth incisions, and low processing costs. It will gradually improve or replace traditional metal cutting equipment. When the laser cutting machine is working, a positioning device is generally used to fix the workpiece to ensure the stability of the laser cutting head when cutting the workpiece.

[0003] However, when cutting the workpiece, due to different cutting requirements, the angle of the workpiece needs to be adjusted to change the cutting area. After the positioning device fixes the workpiece, the position of the workpiece is fixed. When the workpiece needs to be rotated, the workpiece needs to be disassembled, the direction needs to be adjusted, and then installed. The operation process is relatively cumbersome, which reduces the efficiency of workpiece cutting. Utility Model Content

[0004] The purpose of the utility model is to provide a laser cutting workpiece positioning device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser cutting workpiece positioning device, comprising a workbench, the top of which is fixedly connected to two rotating components; the two rotating components comprise an arc-shaped plate, the back of which is fixedly connected to a rack plate, the back of which is meshed with a rotating gear, the inner wall of which is fixedly connected to a connecting rod, and the end of the connecting rod away from the arc-shaped plate is fixedly connected to the rotating plate.

[0006] As a further preferred embodiment of the present technical solution, the top of the workbench is fixedly connected to a mounting frame, the left and right sides of the mounting frame are fixedly connected to connecting frames, the interiors of the two connecting frames are fixedly connected to driving assemblies, and the inner wall of the rotating assembly is fixedly connected to a positioning assembly.

[0007] As a further preferred embodiment of the present technical solution, the driving assembly includes a motor 1, the output end of the motor 1 is fixedly connected to a rotating shaft 1, the surface of the rotating shaft 1 is fixedly sleeved with a driving gear, the front side of the driving gear is meshed with a transmission gear, the inner wall of the transmission gear is fixedly connected to a rotating shaft 2, and the surface of the rotating shaft 2 is fixedly sleeved with a rotating plate.

[0008] As a further preferred embodiment of the present technical solution, the positioning component includes a mounting plate, a second motor is fixedly connected to the right side of the mounting plate, an output end of the second motor is fixedly connected to a bidirectional lead screw, a slide plate is threadedly connected to a surface of the bidirectional lead screw, a guide rod is slidably connected to a middle of the slide plate, a return spring is movably sleeved on a surface of the guide rod, a positioning plate is fixedly connected to a side of the slide plate away from the mounting plate, a friction plate is fixedly connected to a side of the positioning plate away from the slide plate, and a guide groove is formed in an inner wall of the mounting plate.

[0009] As a further preferred embodiment of the present technical solution, the mounting plate is in a shape of a "C", two slide plates are provided, guide blocks are arranged on a back surface of the two slide plates, the guide blocks are located inside the guide groove, and a plurality of convex rib plates are arranged on a surface of the friction plate.

[0010] As a further preferred embodiment of the present technical solution, a mounting frame is fixedly connected to a top end of the mounting frame, a third motor is fixedly connected to a left side of the mounting frame, an output end of the third motor is fixedly connected to a threaded rod, a slider is threadedly connected to a surface of the threaded rod, a hydraulic rod is fixedly connected to a bottom end of the slider, a laser cutting head is fixedly connected to a bottom end of the hydraulic rod, and a limiting rod is fixedly connected to an inner wall of the mounting frame.

[0011] As a further preferred embodiment of the present technical solution, the mounting frame and a second rotating shaft are on the same axis, the slider is slidably connected to a surface of the limiting rod, and two hydraulic rods are provided.

[0012] The present utility model provides a positioning device for a laser cutting workpiece, having the following beneficial effects:

[0013] (1) In the present utility model, by adding rotating components on left and right sides of the positioning component and controlling them through a driving component, when the angle of the workpiece needs to be adjusted, the first motor is started, the first rotating shaft and the driving gear start to rotate. Since the driving gear meshes with the transmission gear, the transmission gear drives the second rotating shaft and the rotating plate to rotate, thereby driving the positioning component to rotate inside the mounting frame to adjust the angle of the workpiece. At the same time, the rotating gear on the rotating plate rotates on the rack plate to improve the stability when the positioning component rotates.

[0014] (2) In the present utility model, by arranging a friction plate on the positioning plate, the workpiece is placed between two positioning plates. The second motor is started, the bidirectional lead screw rotates, so that the two sliders slide on the surface of the guide rod and approach the workpiece. The return spring is compressed and contracted, and the friction plate contacts the workpiece to fix its position, and the convex rib plates on its surface increase the friction with the workpiece to improve the stability during processing. Description of the Drawings

[0015] Figure 1It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the left side structure of the mounting frame of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the rotating assembly and the positioning assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the drive assembly of the utility model.

[0019] In the figure: 1. workbench; 2. rotating assembly; 201. arc plate; 202. rack plate; 203. rotating gear; 204. connecting rod; 205. rotating plate; 3. mounting frame; 4. connecting frame; 5. driving assembly; 501. motor one; 502. rotating shaft one; 503. driving gear; 504. transmission gear; 505. rotating shaft two; 6. positioning assembly; 601. mounting plate; 602. motor two; 603. bidirectional screw rod; 604. slide plate; 605. guide rod; 606. reset spring; 607. positioning plate; 608. friction plate; 609. guide groove; 7. mounting frame; 8. motor three; 9. threaded rod; 10. slider; 11. hydraulic rod; 12. laser cutting head; 13. limit rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1 and Figure 4 As shown, in this embodiment, a laser cutting workpiece positioning device includes a workbench 1, and two rotating components 2 are fixedly connected to the top of the workbench 1; the two rotating components 2 include an arc plate 201, and the back of the arc plate 201 is fixedly connected to a rack plate 202, and the back of the rack plate 202 is meshed with a rotating gear 203, and the inner wall of the rotating gear 203 is fixedly connected to a connecting rod 204, and the end of the connecting rod 204 away from the arc plate 201 is fixedly connected to a rotating plate 205.

[0022] The top of the workbench 1 is fixedly connected to a mounting frame 3 , the left and right sides of the mounting frame 3 are fixedly connected to connecting frames 4 , the interiors of the two connecting frames 4 are fixedly connected to driving components 5 , and the inner wall of the rotating component 2 is fixedly connected to a positioning component 6 .

[0023] The driving assembly 5 includes a first motor 501. A first rotating shaft 502 is fixedly connected to the output end of the first motor 501. A driving gear 503 is fixedly sleeved on the surface of the first rotating shaft 502. A transmission gear 504 meshes with the front surface of the driving gear 503. A second rotating shaft 505 is fixedly connected to the inner wall of the transmission gear 504. A rotating plate 205 is fixedly sleeved on the surface of the second rotating shaft 505.

[0024] The positioning assembly 6 includes a mounting plate 601. A second motor 602 is fixedly connected to the right side of the mounting plate 601. A bidirectional lead screw 603 is fixedly connected to the output end of the second motor 602. A slide plate 604 is threadedly connected to the surface of the bidirectional lead screw 603. A guide rod 605 is slidably connected to the middle of the slide plate 604. A return spring 606 is movably sleeved on the surface of the guide rod 605. A positioning plate 607 is fixedly connected to the side of the slide plate 604 away from the mounting plate 601. A friction plate 608 is fixedly connected to the side of the positioning plate 607 away from the slide plate 604. A guide groove 609 is formed in the inner wall of the mounting plate 601.

[0025] The mounting plate 601 is in a U shape. Two slide plates 604 are provided. Guide blocks are arranged on the back surfaces of the two slide plates 604. The guide blocks are located inside the guide groove 609. Multiple convex rib plates are arranged on the surface of the friction plate 608.

[0026] A mounting frame 7 is fixedly connected to the top end of the mounting frame 3. A third motor 8 is fixedly connected to the left side of the mounting frame 7. A threaded rod 9 is fixedly connected to the output end of the third motor 8. A slider 10 is threadedly connected to the surface of the threaded rod 9. A hydraulic rod 11 is fixedly connected to the bottom end of the slider 10. A laser cutting head 12 is fixedly connected to the bottom end of the hydraulic rod 11. A limiting rod 13 is fixedly connected to the inner wall of the mounting frame 7.

[0027] The mounting frame 7 and the second rotating shaft 505 are on the same axis. The slider 10 is slidably connected to the surface of the limiting rod 13. Two hydraulic rods 11 are provided.

[0028] The present utility model provides a positioning device for laser cutting workpieces. The specific working principle is as follows:

[0029] Place the workpiece between the two positioning plates 607, start the motor 2 602, and rotate the bidirectional screw 603 to make the two sliders 10 slide on the surface of the guide rod 605 and approach the workpiece. The reset spring 606 is squeezed and contracted, and the friction plate 608 contacts the workpiece to fix its position, and increases the friction with the workpiece through the convex ridges on its surface to improve the stability during processing. After the position of the workpiece is fixed, start the motor 3 8, and rotate the threaded rod 9, so that the slider 10 drives the laser cutting head 12 to slide on the limit rod 13. When it moves to the cutting position, start the hydraulic rod 11 to move the laser cutting head 12 downward and cut the workpiece. When the angle of the workpiece needs to be adjusted, the motor 501 is started, the rotating shaft 502 and the driving gear 503 begin to rotate, and the driving gear 503 and the transmission gear 504 are meshed, so that the transmission gear 504 drives the rotating shaft 2 505 and the rotating plate 205 to rotate, thereby driving the positioning component 6 to rotate in the mounting frame 3 to adjust the angle of the workpiece. At the same time, the rotating gear 203 on the rotating plate 205 rotates on the rack plate 202 to improve the stability of the positioning component 6 during rotation.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting workpiece positioning device, comprising a workbench (1), characterized in that: At the top of the workbench (1), two rotating components (2) are fixedly connected; the two rotating components (2) include arc-shaped plates (201), a rack plate (202) is fixedly connected to the back of the arc-shaped plate (201), a rotating gear (203) is engaged with the back of the rack plate (202), a connecting rod (204) is fixedly connected to the inner wall of the rotating gear (203), and a rotating plate (205) is fixedly connected to one end of the connecting rod (204) away from the arc-shaped plate (201).

2. A laser cutting workpiece positioning device according to claim 1, characterized in that: An installation frame (3) is fixedly connected to the top of the workbench (1), connecting frames (4) are fixedly connected to the left and right sides of the installation frame (3), a driving component (5) is fixedly connected to the inside of the two connecting frames (4), and a positioning component (6) is fixedly connected to the inner wall of the rotating component (2).

3. A laser cutting workpiece positioning device according to claim 2, characterized in that: The driving component (5) includes a first motor (501), a first rotating shaft (502) is fixedly connected to the output end of the first motor (501), a driving gear (503) is fixedly sleeved on the surface of the first rotating shaft (502), a transmission gear (504) is engaged with the front of the driving gear (503), a second rotating shaft (505) is fixedly connected to the inner wall of the transmission gear (504), and a rotating plate (205) is fixedly sleeved on the surface of the second rotating shaft (505).

4. The laser cutting workpiece positioning device according to claim 2, characterized in that: The positioning component (6) includes an installation plate (601), a second motor (602) is fixedly connected to the right side of the installation plate (601), a bidirectional lead screw (603) is fixedly connected to the output end of the second motor (602), a sliding plate (604) is threadedly connected to the surface of the bidirectional lead screw (603), a guide rod (605) is slidably connected to the middle of the sliding plate (604), a return spring (606) is movably sleeved on the surface of the guide rod (605), a positioning plate (607) is fixedly connected to one side of the sliding plate (604) away from the installation plate (601), a friction plate (608) is fixedly connected to one side of the positioning plate (607) away from the sliding plate (604), and a guide groove (609) is opened in the inner wall of the installation plate (601).

5. The laser cutting workpiece positioning device according to claim 4, characterized in that: The installation plate (601) is in a C shape, the number of the sliding plates (604) is two, guide blocks are arranged on the back of the two sliding plates (604), the guide blocks are located inside the guide groove (609), and a plurality of convex rib plates are arranged on the surface of the friction plate (608).

6. The laser cutting workpiece positioning device according to claim 2, characterized in that: An installation frame (7) is fixedly connected to the top of the installation frame (3), a third motor (8) is fixedly connected to the left side of the installation frame (7), a threaded rod (9) is fixedly connected to the output end of the third motor (8), a slider (10) is threadedly connected to the surface of the threaded rod (9), a hydraulic rod (11) is fixedly connected to the bottom end of the slider (10), a laser cutting head (12) is fixedly connected to the bottom end of the hydraulic rod (11), and a limiting rod (13) is fixedly connected to the inner wall of the installation frame (7).

7. The laser cutting workpiece positioning device according to claim 6, characterized in that: The mounting frame (7) and the second rotating shaft (505) are located on the same axis, the sliding block (10) is slidably connected to the surface of the limiting rod (13), and the number of the hydraulic rods (11) is two.

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