Positioning device of laser machine

Abstract

The utility model relates to the technical field of laser machines, and discloses a positioning device of a laser machine, which comprises a workbench, the upper surface of the workbench is fixedly connected with a vertical plate, the front side surface of the vertical plate is provided with a guide groove, the inside of the guide groove is rotatably connected with a first threaded rod, and the upper surface of the vertical plate is fixedly connected with a motor. An output shaft of the motor rotationally penetrates into the guide groove and is fixedly connected with the upper end of a first threaded rod, the outer surface of the first threaded rod is sleeved with a mounting plate in a threaded mode, the mounting plate is slidably connected into the guide groove, a laser device is arranged on the lower surface of the mounting plate, and the motor is started to drive the first threaded rod to rotate; and finally, the workpiece is positioned by the positioning assembly in the descending process of the laser device, the operation steps of workers are greatly reduced, the workers do not need to additionally position the workpiece, the subsequent workpiece machining efficiency is improved, the machining continuity is guaranteed, and the practicability is high.

Description

Technical Field

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

[0002] Laser marking machine is also called laser marking machine. It uses laser beam to mark permanently on the surface of various materials. The effect of marking is to expose the deep material through evaporation of surface material, thereby engraving exquisite patterns, trademarks and texts.

[0003] After consulting the literature, it is learned that the existing patent (publication number: CN214264454U) discloses a positioning device for a laser machine, including a base plate, the top of the base plate is connected to a fixed frame, the top of the inner cavity of the fixed frame is provided with an electric telescopic rod 1, the bottom of the electric telescopic rod 1 is connected to a laser processing device, the top of the base plate is connected to a workbench, the top of the workbench is provided with an operating table, positioning devices are provided on the left and right sides of the operating table, and a guide groove 1 is provided through the middle of the left and right side walls of the operating table, and a guide groove 2 is provided parallel to the upper and lower sides of the guide groove 1.

[0004] Although the above-mentioned existing technology can realize the positioning of the workpiece to be marked, in the actual operation process, the staff needs to rotate the two sets of nuts separately to realize the positioning of the workpiece. In addition, during continuous processing, because the two sets of nuts need to be rotated separately, it is not convenient to ensure that the adjustment distance is the same each time. Therefore, it is impossible to ensure that the workpiece is located directly under the laser head. The positioning efficiency of the workpiece is poor and the practicality is poor. In view of this, we propose a positioning device for a laser machine to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present invention provides a positioning device for a laser machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for a laser machine, comprising a workbench, the upper surface of the workbench is fixedly connected to a vertical plate, the front side surface of the vertical plate is provided with a guide groove, the interior of the guide groove is rotatably connected to a first threaded rod, the upper surface of the vertical plate is fixedly connected to a motor, the output shaft of the motor rotates and passes through the interior of the guide groove and is fixedly connected to the upper end of the first threaded rod, the outer surface of the first threaded rod is threadedly sleeved with a mounting plate, the mounting plate is slidably connected to the interior of the guide groove, a laser device is provided on the lower surface of the mounting plate, a first through groove extending from the front and rear side surfaces is provided inside the workbench, two movable plates are provided on the upper surface of the workbench, and positioning components are provided on the opposite side surfaces of the two movable plates, and the first through groove The gear train is connected to the gear of the said sliding sleeve by the spring which has the function of rotating the gears of the said sliding sleeve, and the gear train is connected to the gear of the said sliding sleeve by the spring which has the function of rotating the gears of the said sliding sleeve.

[0007] Preferably, the positioning assembly includes a fixed block, which is slidably connected to the surface of the movable plate. The surface of the fixed block is fixedly connected to a first connecting rod, a first telescopic groove is provided inside the first connecting rod, and a second connecting rod is slidably connected inside the first telescopic groove.

[0008] Preferably, the second connecting rod slides through the first connecting rod, a spring is fixedly connected between the second connecting rod and the inner wall of the first telescopic slot, and opposite ends of the two second connecting rods are fixedly connected to a clamping plate.

[0009] Preferably, both ends of the bidirectional threaded rod are rotatably connected to limit plates, a sliding groove is provided on the bottom wall of the first through groove, and the limit plate is slidably connected inside the sliding groove.

[0010] Preferably, an electric push rod is fixedly connected to the outer surface of the workbench, the telescopic end of the electric push rod slides into the interior of the first through groove, and the telescopic end of the electric push rod is fixedly connected to the limit plate.

[0011] Preferably, transverse grooves are formed on the surfaces of the opposite sides of the two moving plates. A second threaded rod is rotatably connected inside the left transverse groove, and a guide rod is arranged inside the right transverse groove. Sliding blocks are slidably connected inside the two transverse grooves. The left sliding block is threadedly sleeved on the outer surface of the second threaded rod, and the right sliding block is slidably sleeved on the outer surface of the guide rod. The sliding block is fixedly connected to the fixed block.

[0012] Preferably, the front end of the second threaded rod rotatably penetrates out of the inside of the left C-shaped frame. A second through groove is formed inside the workbench, and the second through groove is connected to the first through groove. The lower surface of the fixed block is fixedly connected with an L-shaped fixing rod, and the L-shaped fixing rod extends into the inside of the first through groove through the inside of the second through groove.

[0013] Preferably, second telescopic grooves are formed inside the crossbars of the two L-shaped fixing rods, and support rods are slidably connected inside the two second telescopic grooves.

[0014] Compared with the prior art, the present utility model provides a positioning device for a laser engraving machine, which has the following beneficial effects:

[0015] 1. For the positioning device of the laser engraving machine, by starting the motor to drive the rotation of the first threaded rod, finally, during the process of the laser engraving device descending, the positioning component positions the workpiece, greatly reducing the operation steps of the staff. There is no need for the staff to perform additional workpiece positioning work, improving the subsequent processing efficiency of the workpiece, ensuring the continuity of processing, and having high practicability.

[0016] 2. For the positioning device of the laser engraving machine, the fine adjustment of the left and right positions of the workpiece is realized through the setting of the electric push rod, and the adjustment of the front and rear positions of the workpiece is realized through the setting of the second threaded rod, greatly improving the flexibility of the device. It is convenient for the staff to finely adjust the position of the workpiece according to the actual use requirements. And when the positioning component positions the workpiece again after adjustment, there is no need for further adjustment, ensuring the continuity of the workpiece processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a positioning device for a laser engraving machine of the present utility model;

[0018] Figure 2 is a rear view of the whole of the present utility model;

[0019] Figure 3 is a schematic cross-sectional structure diagram of the vertical plate of the present utility model; [[ID=三十一]]

[0020] [[ID=三十二]] Figure 4 [[ID=三十三]]is [[ID=三十四]] Figure 3 [[ID=三十五]]an enlarged view of part A in [[ID=三十六]] [[ID=三十七]]

[0021] [[ID=三十八]] Figure 5This is a schematic cross-sectional view of the positioning assembly and the L-shaped fixing rod of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the workbench of the utility model.

[0023] In the figure: 1, workbench; 2, vertical plate; 3, guide groove; 4, first threaded rod; 401, motor; 5, mounting plate; 6, laser device; 7, first through groove; 8, movable plate;

[0024] 9. Positioning assembly; 901. Fixing block; 902. First connecting rod; 903. Second connecting rod; 904. Clamping plate; 905. First telescopic slot; 906. Spring;

[0025] 10. Connecting block; 1001. Clamping block; 1002. Cavity; 1003. First bevel gear; 1004. Second bevel gear; 1005. Sleeve;

[0026] 11. Bidirectional threaded rod; 1101. Card slot;

[0027] 12. L-shaped frame; 13. Limiting plate; 14. Electric push rod; 15. Sliding groove; 16. Horizontal groove; 17. Second threaded rod; 18. Second through groove; 19. L-shaped fixing rod; 20. Second telescopic groove; 21. Support rod; 22. Sliding block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-6, the present utility model provides a technical solution: a positioning device for a laser engraving machine, including a workbench 1. A vertical plate 2 is fixedly connected to the upper surface of the workbench 1. A guide groove 3 is opened on the front side surface of the vertical plate 2. A first threaded rod 4 is rotatably connected inside the guide groove 3. A motor 401 is fixedly connected to the upper surface of the vertical plate 2. The output shaft of the motor 401 rotates through the inside of the guide groove 3 and is fixedly connected to the upper end of the first threaded rod 4. An installation plate 5 is threadedly sleeved on the outer surface of the first threaded rod 4. The installation plate 5 is slidably connected inside the guide groove 3. A laser engraving device 6 is arranged on the lower surface of the installation plate 5. The laser engraving device 6 is an existing structure, and for details, reference can be made to the prior art with the publication number CN214264454U, so it will not be described in detail in this text. A first through groove 7 extending out of the front and rear side surfaces is opened inside the workbench 1. Two moving plates 8 are arranged on the upper surface of the workbench 1. The two moving plates 8 have the same structure. Positioning components 9 are arranged on the opposite side surfaces of the two moving plates 8. A connecting block 10 is fixedly connected inside the first through groove 7. The upper end of the connecting block 10 is embedded inside the workbench 1. A bidirectional threaded rod 11 is arranged inside the first through groove 7. The connecting block 10 is movably sleeved on the outer side of the bidirectional threaded rod 11. A cavity 1002 is opened inside the connecting block 10. The lower end of the first threaded rod 4 rotates through the inside of the cavity 1002. A first bevel gear 1003 is fixedly connected to the lower end of the first threaded rod 4. A second bevel gear 1004 is arranged on the outer side of one end of the bidirectional threaded rod 11 located inside the cavity 1002. The first bevel gear 1003 and the second bevel gear 1004 are meshed and connected. A sleeve 1005 is fixedly connected to the surface of the second bevel gear 1004. The sleeve 1005 is rotatably connected to the inner wall of the cavity 1002. A clamping groove 1101 is opened on the surface of the bidirectional threaded rod 11. A clamping block 1001 is fixedly connected to the inner wall of the sleeve 1005. The clamping block 1001 is slidably connected inside the clamping groove 1101. Threaded sleeves 12 are respectively arranged on the opposite threaded parts at both ends of the bidirectional threaded rod 11. The threaded sleeves 12 are slidably connected inside the first through groove 7. The two vertical plates of the threaded sleeves 12 are respectively fixedly connected to the two side surfaces of the moving plates 8. By starting the motor 401 to drive the rotation of the first threaded rod 4, at this time, through the rotation of the first threaded rod 4, the installation plate 5 can be driven to slide inside the guide groove 3, so as to drive the laser engraving device 6 to descend. At the same time, the first threaded rod 4 will drive the first bevel gear 1003 to rotate. Through the rotation of the first bevel gear 1003, the rotation of the second bevel gear 1004 can be driven, and the sleeve 1005 will rotate on the inner wall of the cavity 1002. At this time, through the rotation of the sleeve 1005, the rotation of the clamping block 1001 can be driven. Therefore, the clamping block 1001 is slidably connected to the clamping groove 1101, and the clamping groove 1101 will limit the clamping block 10, so the clamping block 1001 will drive the bidirectional threaded rod 11 to rotate. At this time, through the rotation of the bidirectional threaded rod 11, the two threaded sleeves 12 can be driven to slide inside the first through groove 7,This in turn drives the movement of the moving plate 8 and the positioning assembly 9, and ultimately enables the positioning assembly 9 to position the workpiece during the descent of the laser device 6. The above structure greatly reduces the number of operating steps for the staff, eliminating the need for the staff to perform additional workpiece positioning, thereby improving the subsequent processing efficiency of the workpiece, ensuring the continuity of processing, and having high practicality.

[0030] Furthermore, the positioning assembly 9 includes a fixed block 901, which is slidably connected to the surface of the movable plate 8. The surface of the fixed block 901 is fixedly connected to the first connecting rod 902. The first connecting rod 902 is provided with a first telescopic slot 905. The first telescopic slot 905 is slidably connected to the second connecting rod 903. The second connecting rod 903 slides through the first connecting rod 902. A spring 906 is fixedly connected between the second connecting rod 903 and the inner wall of the first telescopic slot 905. The opposite ends of the two second connecting rods 903 are fixedly connected to the clamping plate 904. The movement of the movable plate 8 can drive the movement of the fixed block 901, thereby driving the movement of the first connecting rod 902, the second connecting rod 903, the spring 906, and the clamping plate 904. When the clamping plate 904 contacts the workpiece, the movable plate 8 continues to move. At this time, the spring 906 will be deformed by the force, and the clamping plate 904 can clamp and position the workpiece by relying on the elastic force of the spring 906 itself.

[0031] In the above embodiment, the material of the clamping plate 904 can be a flexible material, such as a rubber pad. It can also be rotated to make the clamping plate 904 a hard plate, and a rubber pad or other flexible material pad is set on the opposite side surface to avoid hard contact between the clamping plate 904 and the workpiece, thereby avoiding damage to the workpiece as much as possible. In addition, the setting of the rubber pad can increase the friction between the clamping plate 904 and the workpiece, ensuring the stability of the workpiece during processing.

[0032] Furthermore, both ends of the bidirectional threaded rod 11 are rotatably connected to the limit plate 13, and a sliding groove 15 is provided on the bottom wall of the first through groove 7. The limit plate 13 is slidably connected inside the sliding groove 15. When the bidirectional threaded rod 11 rotates, because the limit plate 13 and the bidirectional threaded rod 11 are rotatably connected, and the sliding groove 15 will limit the movement trajectory of the limit plate 13, the limit plate 13 will not rotate.

[0033] Furthermore, an electric push rod 14 is fixedly connected to the outer surface of the workbench 1, and the telescopic end of the electric push rod 14 slides into the interior of the first through groove 7. The telescopic end of the electric push rod 14 is fixedly connected to the adjacent limit plate 13. When the staff needs to fine-tune the left and right positions of the workpiece, by starting the electric push rod 14, the telescopic end of the electric push rod 14 will push the limit plate 13 to move. At this time, the limit plate 13 will slide inside the sliding groove 15, and the bidirectional threaded rod 11 will also move. At this time, the bidirectional threaded rod 11 will move inside the connecting block 10, and the clamping block 1001 will slide inside the clamping groove 1101. When the bidirectional threaded rod 11 moves, the yoke 12 will also move inside the first through groove 7, thereby driving the two movable plates 8 to move synchronously, thereby driving the movement of the positioning assembly 9, and finally realizing the adjustment of the left and right positions of the workpiece.

[0034] Furthermore, a transverse groove 16 is provided on the opposite side surfaces of the two movable plates 8, and a second threaded rod 17 is rotatably connected to the interior of the left transverse groove 16, and a guide rod is provided inside the right transverse groove 16. The interiors of the two transverse grooves 16 are slidably connected to sliding blocks 22, and the left sliding block 22 is threadedly sleeved on the outer surface of the second threaded rod 17, and the right sliding block 22 is slidably sleeved on the outer surface of the guide rod. The sliding block 22 is fixedly connected to the fixed block 901, and the front end of the second threaded rod 17 rotates to pass through the interior of the left U-shaped frame 12, and a second through-slot 18 is provided inside the workbench 1, and the second through-slot 18 is connected to the first through-slot 7, and the lower surface of the fixed block 901 is fixedly connected to an L-shaped fixing rod 19, and the L-shaped fixing rod 19 extends into the interior of the first through-slot 7 through the interior of the second through-slot 18, and the interiors of the two L-shaped fixing rods 19 cross bars are provided with second telescopic slots 20, and the interiors of the two second telescopic slots 20 are slidably connected to the support rod 21. When the staff needs to adjust the position of the workpiece in the front and rear directions, they can do so by rotating the second threaded rod 17. The left sliding block 22 is driven to slide inside the left transverse groove 16, thereby driving the movement of the left positioning assembly 9. During the movement of the left positioning assembly 9, the left L-shaped fixing rod 19 is driven to move. At this time, the right L-shaped fixing rod 19 is driven to move under the connection of the support rod 21, thereby driving the movement of the right positioning assembly 9 through the movement of the right L-shaped fixing rod 19. At this time, the right sliding block 22 will slide inside the right transverse groove 16 under the restriction of the guide rod, and the L-shaped fixing rod 19 will move inside the second through groove 18 during the movement of the positioning assembly 9, finally realizing the adjustment of the front and rear position of the workpiece. The setting of the electric push rod 14 realizes the fine adjustment of the left and right position of the workpiece, and the setting of the second threaded rod 17 realizes the adjustment of the front and rear position of the workpiece, which greatly improves the flexibility of the device and is convenient for the staff to fine-tune the position of the workpiece according to actual use needs. And after the adjustment, when the positioning assembly 9 is positioned to the workpiece again, there is no need to adjust it again, thereby ensuring the continuity of the workpiece processing.

[0035] In the above embodiment, the position of the clamping plate 904 fits the surface of the workbench 1 or is slightly higher than the surface of the workbench 1. Therefore, there will be no collision between the second through groove 18 and the clamping plate 904. At the same time, the width or length of the workpiece is less than the distance between the two second through grooves 18, thereby ensuring the stability of the workpiece when placed on the workbench 1.

[0036] Working principle:

[0037] When the positioning device of this laser machine is in use, starting the motor 401 drives the rotation of the first threaded rod 4. At this time, the rotation of the first threaded rod 4 can drive the mounting plate 5 to slide inside the guide groove 3, thereby driving the laser device 6 to descend. At the same time, the first threaded rod 4 will drive the first bevel gear 1003 to rotate. Through the rotation of the first bevel gear 1003, the rotation of the second bevel gear 1004 can be driven, and the sleeve 1005 will rotate on the inner wall of the cavity 1002. At this time, through the rotation of the sleeve 1005, the rotation of the block 1001 can be driven. Therefore, the block 1001 is slidably connected to the card slot 1101, and the card slot 1101 will restrict the block 1001. Therefore, the block 1001 will drive the bidirectional threaded rod 11 to rotate. At this time, through the rotation of the bidirectional threaded rod 11, the two U-shaped frames 12 can slide inside the first through groove 7, thereby driving the movement of the moving plate 8 and the positioning component 9. Finally, during the process of the laser device 6 descending, the positioning component 9 positions the workpiece.

[0038] 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, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for a laser machine, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected with a vertical plate (2). A guide groove (3) is formed on the front side surface of the vertical plate (2). A first threaded rod (4) is rotatably connected inside the guide groove (3). The upper surface of the vertical plate (2) is fixedly connected with a motor (401). The output shaft of the motor (401) rotatably penetrates into the inside of the guide groove (3) and is fixedly connected to the upper end of the first threaded rod (4). An installation plate (5) is threadedly sleeved on the outer surface of the first threaded rod (4). The installation plate (5) is slidably connected inside the guide groove (3). A laser device (6) is arranged on the lower surface of the installation plate (5). A first through groove (7) extending out of the front and rear side surfaces is formed inside the workbench (1). Two moving plates (8) are arranged on the upper surface of the workbench (1). Positioning components (9) are arranged on the opposite side surfaces of the two moving plates (8). A connecting block (10) is fixedly connected inside the first through groove (7). A bidirectional threaded rod (11) is arranged inside the first through groove (7). The connecting block (10) is movably sleeved on the outer surface of the bidirectional threaded rod (11). A cavity (1002) is formed inside the connecting block (10). The lower end of the first threaded rod (4) rotatably penetrates into the inside of the cavity (1002). A first bevel gear (1003) is fixedly connected to the lower end of the first threaded rod (4). A second bevel gear (1004) is arranged on the outer surface of one end of the bidirectional threaded rod (11) located inside the cavity (1002). The first bevel gear (1003) and the second bevel gear (1004) are meshed. A sleeve (1005) is fixedly connected to the surface of the second bevel gear (1004). The sleeve (1005) is rotatably connected to the inner wall of the cavity (1002). A clamping groove (1101) is formed on the surface of the bidirectional threaded rod (11). A clamping block (1001) is fixedly connected to the inner wall of the sleeve (1005). The clamping block (1001) is slidably connected inside the clamping groove (1101). C-shaped frames (12) are threadedly sleeved on the opposite threaded parts at both ends of the bidirectional threaded rod (11). The two vertical plates of the C-shaped frames (12) are respectively fixedly connected to the two side surfaces of the moving plates (8).

2. The positioning device for a laser machine according to claim 1, characterized in that: The positioning component (9) includes a fixed block (901). The fixed block (901) is slidably connected to the surface of the moving plate (8). A first connecting rod (902) is fixedly connected to the surface of the fixed block (901). A first telescopic groove (905) is formed inside the first connecting rod (902). A second connecting rod (903) is slidably connected inside the first telescopic groove (905).

3. The positioning device for a laser machine according to claim 2, characterized in that: The second connecting rod (903) slidably penetrates out of the first connecting rod (902). A spring (906) is fixedly connected between the second connecting rod (903) and the inner wall of the first telescopic groove (905). Clamping plates (904) are fixedly connected to the opposite ends of the two second connecting rods (903).

4. The positioning device for a laser machine according to claim 1, characterized in that: Limit plates (13) are rotatably connected to both ends of the bidirectional threaded rod (11). A sliding groove (15) is formed on the bottom wall of the first through groove (7). The limit plates (13) are slidably connected inside the sliding groove (15).

5. The positioning device for a laser machine according to claim 4, characterized in that: The outer surface of the workbench (1) is fixedly connected with an electric push rod (14). The telescopic end of the electric push rod (14) slides through the inside of the first through groove (7), and the telescopic end of the electric push rod (14) is fixedly connected with the limiting plate (13).

6. The positioning device for a laser machine according to claim 5, characterized in that: Transverse grooves (16) are formed on the opposite side surfaces of the two moving plates (8). A second threaded rod (17) is rotatably connected inside the left transverse groove (16), and a guide rod is arranged inside the right transverse groove (16). Sliding blocks (22) are slidably connected inside the two transverse grooves (16). The left sliding block (22) is threadedly sleeved on the outer surface of the second threaded rod (17), and the right sliding block (22) is slidably sleeved on the outer surface of the guide rod. The sliding block (22) is fixedly connected with the fixed block (901).

7. The positioning device for a laser machine according to claim 6, characterized in that: The front end of the second threaded rod (17) rotatably penetrates through the inside of the left C-shaped frame (12). A second through groove (18) is formed inside the workbench (1), and the second through groove (18) is communicated with the first through groove (7). The lower surface of the fixed block (901) is fixedly connected with an L-shaped fixing rod (19), and the L-shaped fixing rod (19) extends into the inside of the first through groove (7) through the inside of the second through groove (18).

8. The positioning device for a laser machine according to claim 7, characterized in that: Second telescopic grooves (20) are formed inside the crossbars of the two L-shaped fixing rods (19), and support rods (21) are slidably connected inside the two second telescopic grooves (20).

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