Laser engraving machine capable of preventing workpiece from deviating

Abstract

The utility model relates to the technical field of laser engraving machines, in particular to a workpiece deviation prevention laser engraving machine which comprises a machining table, side plates are symmetrically and fixedly installed on the two sides of the upper portion of the machining table, a plurality of first air cylinders are distributed in the side plates in a penetrating mode, and first piston rods used for driving are arranged in the first air cylinders. A connecting plate is fixedly mounted at one end of each piston rod distributed along the same side. According to the scheme, the clamping tables are driven by the symmetrical first air cylinders on the two sides to move oppositely, the two sides of a carved plate are clamped, meanwhile, the clamping plates at the front end and the rear end are driven by the shaft rod driven by the motor and the positive and negative thread structure to move oppositely synchronously, front-back positioning is completed, deviation of a workpiece in the carving process is effectively avoided through the multi-direction linkage clamping mechanism, and the working efficiency is improved. The device is especially suitable for irregular or easy-to-slide plates. And the three-dimensional movement of the laser head is adjusted in cooperation with the guide rail pair and the second air cylinder, and the engraving precision is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of laser engraving machine technology, and in particular to a laser engraving machine that prevents workpiece displacement. Background Technology

[0002] A laser engraving machine is an advanced CNC device that uses a high-energy-density laser beam to engrave, cut, or mark various materials. The working principle of a laser engraving machine is that a computer controls the movement of the laser beam, causing it to form the desired pattern or text on the material surface. This technology has advantages such as high precision, high speed, simple operation, and no need for molds, and is therefore widely used in advertising, packaging, decoration, electronics, medical, and other industries.

[0003] Laser engraving machines are efficient, precise, and multifunctional processing equipment. Their emergence and development have greatly promoted technological progress and industrial upgrading in various industries. According to the authorized announcement number "CN221773707U", a laser engraving machine for preventing workpiece displacement is disclosed, relating to the field of laser engraving machine technology. It includes a base, support column, slide rail, cylinder, driver, and laser emitter. A fixed platform is fixedly installed on the upper surface of the base, and baffles are fixedly installed on both sides of the fixed platform. Fixed blocks are fixedly installed on both sides of the baffles, and a motor is fixedly installed on one side of each fixed block. A lead screw is fixedly connected to the output end of the motor. This utility model, by setting up the lead screw, slide bar, slider, baffle, and clamping plate, allows the motor to drive the lead screw to rotate, causing the slider to move under the limiting action of the lead screw and slide bar, thus moving the clamping plate. The clamping plate pushes the laser-engraved workpiece, clamping it between the clamping plate and the baffle, effectively limiting and fixing the laser-engraved workpiece, thereby preventing displacement during laser engraving and improving the accuracy of the final engraving result.

[0004] Currently, when laser engraving patterns on plates, although laser engraving machines can move to any position to engrave on the plates, when processing similar plates in batches, it is not only necessary to ensure that the workpieces do not shift during processing, but also that the workpieces can quickly reach the center area of ​​the processing table before engraving. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a laser engraving machine that prevents workpiece displacement.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a laser engraving machine for preventing workpiece displacement, comprising a processing table, side plates symmetrically fixedly installed on both sides above the processing table, a plurality of cylinders 1 distributed through the interior of the side plates, a piston rod 1 for driving is provided inside the cylinder 1, and a connecting plate is fixedly installed at the end of the plurality of piston rods 1 distributed along the same side.

[0007] A clamping platform is fixedly installed on one side of the connecting plate. An inner cavity is opened inside the clamping platform. A limit hole is opened on the inner wall of the inner cavity. A limit block is slidably installed inside the limit hole. A clamping plate is fixedly installed on the other end of the limit block.

[0008] In detail, a bearing seat is fixedly installed on one side of the inner wall of the inner cavity, and a shaft is rotatably installed inside the bearing seat. A bushing is fixedly installed through the end of the inner cavity away from the bearing seat, and the inside of the bushing is rotatably sleeved with the surface of the shaft.

[0009] In detail, a motor is provided at the outer end of the shaft, and the outer wall of the motor is fixedly assembled with the surface of the clamping platform through a bracket. A drive shaft is provided inside the motor, and the end of the drive shaft is fixedly connected to one end of the shaft through a coupling.

[0010] In detail, the surface of the shaft is provided with threaded protrusions, and there are two sections of threaded protrusions on the shaft. The threaded protrusions on both sides are of the same length and opposite in direction. The surface of the threaded protrusions is threadedly connected to a threaded sleeve, and the outer ring wall of the threaded sleeve is fixedly assembled with one end of the limiting block located inside the inner cavity.

[0011] In detail, both ends of the connecting plate are fixed with an inner sleeve, and the surface of the clamp is fixedly installed with a threaded post corresponding to the position of the inner sleeve. The surface of the threaded post penetrates the interior of the inner sleeve, and a threaded cap is threadedly installed at the end of the threaded post. One end of the threaded cap fits against the end face of the inner sleeve, and several evenly distributed knobs are fixedly installed on the outer ring wall of the threaded cap.

[0012] In detail, both sides of the processing table are fixed with a guide rail sub-guide rail, and a guide rail sub-slide is slidably disposed on the surface of the guide rail sub-guide rail. The upper ends of the guide rail sub-slides distributed along both sides are connected to the same moving frame.

[0013] In detail, a second guide rail is fixedly installed at the lower end of the movable frame, and a second guide rail slide is slidably disposed on the surface of the second guide rail.

[0014] In detail, a cylinder is fixed to the surface of the guide rail slide two, and a piston rod is provided inside the cylinder two. The piston rod is set downward and perpendicular to the processing table, and a laser engraving head is fixedly installed at the end of the piston rod.

[0015] The design scheme proposed in this utility model has the following beneficial effects in application:

[0016] 1. This solution uses symmetrical cylinders on both sides to drive the clamping tables to move in opposite directions, thus clamping the workpiece on both sides. Simultaneously, a motor-driven shaft and a reverse thread structure drive the clamping plates at both ends to move synchronously in opposite directions, completing front-to-back positioning. This multi-directional linkage clamping mechanism effectively prevents workpiece displacement during the engraving process, and is especially suitable for irregular or easily slippery materials. Combined with the guide rail pair and cylinder two to adjust the three-dimensional movement of the laser head, the engraving accuracy is significantly improved.

[0017] 2. As described in 1, the quick-release structure of the threaded column and the inner sleeve allows the clamping platform and the connecting plate to be separated simply by rotating the threaded cap, making it easy to replace clamping modules of different specifications. Attached Figure Description

[0018] Figure 1 This is a front view of the overall structure of the present invention based on the clamping platform direction.

[0019] Figure 2 This is a schematic diagram of the rear structure of the overall structure based on the clamping platform direction of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the clamping platform of this utility model;

[0021] Figure 4 This is an enlarged schematic diagram of point A in this utility model;

[0022] Figure 5 This is an enlarged schematic diagram of section B of this utility model.

[0023] In the diagram: 1. Machining table; 11. Side plate; 12. Cylinder 1; 13. Connecting plate; 14. Clamping platform; 15. Limiting hole; 16. Limiting block; 17. Clamping plate; 18. Inner cavity; 2. Shaft seat; 21. Shaft rod; 22. Shaft sleeve; 23. Motor; 24. Threaded protrusion; 25. Threaded sleeve; 3. Internal sleeve; 31. Threaded column; 32. Threaded cap; 4. Guide rail pair guide rail 1; 41. Guide rail pair slide 1; 42. Moving frame; 43. Guide rail pair guide rail 2; 44. Guide rail pair slide 2; 45. Cylinder 2; 46. Laser engraving head. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figures 1-5A laser engraving machine for preventing workpiece displacement includes a processing table 1. Side plates 11 are symmetrically fixedly installed on both sides of the upper part of the processing table 1. Several cylinders 12 are distributed through the inside of the side plates 11. Piston rods for driving are provided inside the cylinders 12. Connecting plates 13 are fixedly installed at the ends of the several piston rods distributed along the same side. The piston rods of the cylinders 12 can extend and retract, which can facilitate the movement of clamping tables 14. The clamping tables 14 distributed along both sides can move closer or further away from each other, and can clamp and position the workpiece to be engraved from both sides.

[0027] A clamping platform 14 is fixedly installed on one side of the connecting plate 13. An inner cavity 18 is opened inside the clamping platform 14. A limiting hole 15 is opened on the inner wall of the inner cavity 18. A limiting block 16 is slidably arranged inside the limiting hole 15. A clamping plate 17 is fixedly installed on the other end of the limiting block 16. The two clamping plates 17, which are distributed on the same side of the displacement, can move towards each other, thereby clamping and positioning the front and rear ends of the engraved plate.

[0028] It should be further explained that a bearing seat 2 is fixedly installed on one side of the inner wall of the inner cavity 18, and a shaft 21 is rotatably arranged inside the bearing seat 2. A bushing 22 is fixedly installed through the end of the inner cavity 18 away from the bearing seat 2. The inside of the bushing 22 is rotatably sleeved with the surface of the shaft 21, and the shaft 21 can rotate stably based on the bushing 22 and the bearing seat 2.

[0029] It should be further noted that a motor 23 is provided at the outer end of the shaft 21. The outer wall of the motor 23 is fixedly assembled to the surface of the clamp 14 through a bracket. The motor 23 has a rotating shaft for driving inside. The end of the rotating shaft is fixedly connected to one end of the shaft 21 through a coupling. The motor 23 is externally connected to a forward and reverse switch through a wire plug. The forward and reverse switch is model HY2-8 and can drive the rotating shaft of the motor 23 to rotate in both directions.

[0030] It should be further explained that the surface of the shaft 21 is provided with threaded protrusions 24. There are two sections of threaded protrusions 24 on the shaft 21. The threaded protrusions 24 on both sides are of the same length and opposite in direction. The surface of the threaded protrusions 24 is threadedly connected to a threaded sleeve 25. The outer ring wall of the threaded sleeve 25 is fixedly assembled with one end of the limiting block 16 located inside the inner cavity 18. When it is necessary to drive the two clamping plates 17, the power supply of the motor 23 is turned on. The motor 23 is operated by the forward and reverse switch. The motor 23 can make the rotating shaft rotate in both directions and drive the shaft 21 to move in linkage. Thus, the threaded protrusions 24 move and slide in the limiting hole 15 in conjunction with the limiting block 16. With the forward and reverse arrangement of the two sections of threaded protrusions 24, the two clamping plates 17 can move synchronously in opposite directions or away from each other.

[0031] It should be further explained that both ends of the connecting plate 13 are fixedly fitted with inner sleeves 3. The surface of the clamping platform 14 is fixedly installed with threaded posts 31 corresponding to the positions of the inner sleeves 3. The surface of the threaded posts 31 penetrates the interior of the inner sleeves 3. A threaded cap 32 is threadedly installed at the end of the threaded posts 31. One end of the threaded cap 32 is fitted against the end face of the inner sleeves 3. Several evenly distributed knobs are fixedly installed on the outer ring wall of the threaded cap 32. When the clamping platform 14 needs to be disassembled, the threaded cap 32 is rotated by the knobs, so that the threaded cap 32 can be threadedly separated from the threaded posts 31, thereby realizing the disengagement operation of the threaded posts 31 from the inner sleeves 3. Thus, the connecting plate 13 and the clamping platform 14 can be separated.

[0032] It should be further explained that guide rail sub-guide rails 4 are fixed on both sides of the processing table 1. Guide rail sub-slide blocks 41 are slidably arranged on the surface of the guide rail sub-guide rails 4. The upper ends of the guide rail sub-slide blocks 41 distributed on both sides are connected to the same moving frame 42. The laser engraving head 46 can move back and forth by sliding the guide rail sub-slide blocks 41 on the guide rail sub-guide rails 4.

[0033] It should be further noted that a guide rail sub-rail 43 is fixedly installed at the lower end of the movable frame 42, and a guide rail sub-slide block 44 is slidably disposed on the surface of the guide rail sub-rail 43. By sliding the guide rail sub-slide block 44 on the guide rail sub-rail 43, the horizontal movement of the laser engraving head 46 can be realized.

[0034] It should be further explained that a cylinder 45 is fixed on the surface of the guide rail slide 44. A piston rod 2 is installed inside the cylinder 45. The piston rod 2 is set downward and perpendicular to the processing table 1. A laser engraving head 46 is fixedly installed at the end of the piston rod 2. The laser engraving head 46 can be moved up and down by extending and retracting the piston rod 2 of the cylinder 45.

[0035] In practice

[0036] This solution achieves precise workpiece fixation through a multi-directional clamping mechanism. First, the cylinders 12 on both sides drive the piston rods to extend and retract, causing the connecting plate 13 and clamping platform 14 to move synchronously, so that the clamping platforms 14 on both sides clamp the workpiece laterally. The clamping platform 14 is equipped with a bidirectional threaded mechanism driven by the motor 23. The two reverse threaded protrusions 24 on the shaft 21 respectively engage with the threaded sleeve 25. When the motor 23 rotates forward and reverse, the threaded sleeve 25 drives the limiting block 16 to slide in the limiting hole 15, so that the two clamping plates 17 on the same side move synchronously towards or away from each other, thereby clamping the front and rear ends of the workpiece longitudinally. Through the synergistic effect of lateral and longitudinal clamping, the workpiece is completely fixed in the center of the processing table 1, avoiding displacement during the engraving process. In addition, the clamping platform 14 is detachably connected to the connecting plate 13 through the threaded post 31, which facilitates maintenance or replacement of the clamping module.

[0037] The laser engraving head 46 moves in three-dimensional precision through the cooperation of two guide rail pairs and cylinder 45. The guide rail 4 and the slide 41 form a front-to-back moving pair, driving the moving frame 42 to move longitudinally along the processing table 1. The guide rail 43 and the slide 44 form a horizontal moving pair, allowing the laser engraving head 46 to be adjusted laterally. In the vertical direction, the piston rod of cylinder 45 directly controls the lifting and lowering of the laser engraving head 46 to adapt to the focal length requirements of workpieces of different thicknesses. Through the linkage of these three sets of mechanisms, the laser engraving head 46 can be positioned arbitrarily within the processing area.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser engraving machine for preventing workpiece displacement, comprising a processing table (1), characterized in that: Side plates (11) are symmetrically fixedly installed on both sides above the processing table (1). Several cylinders (12) are distributed through the inside of the side plates (11). Piston rods for driving are provided inside the cylinders (12). Connecting plates (13) are fixedly installed at the ends of several piston rods distributed along the same side. A clamping platform (14) is fixedly installed on one side of the connecting plate (13). An inner cavity (18) is opened inside the clamping platform (14). A limiting hole (15) is opened on the inner wall of the inner cavity (18). A limiting block (16) is slidably arranged inside the limiting hole (15). A clamping plate (17) is fixedly installed on the other end of the limiting block (16).

2. The laser engraving machine for preventing workpiece displacement according to claim 1, characterized in that: A bearing seat (2) is fixedly installed on one side of the inner wall of the inner cavity (18). A shaft rod (21) is rotatably arranged inside the bearing seat (2). A bushing (22) is fixedly installed through the end of the inner cavity (18) away from the bearing seat (2). The inside of the bushing (22) is rotatably sleeved with the surface of the shaft rod (21).

3. A laser engraving machine for preventing workpiece displacement according to claim 2, characterized in that: The outer end of the shaft (21) is provided with a motor (23). The outer wall of the motor (23) is fixedly assembled with the surface of the clamp (14) through a bracket. The motor (23) is provided with a drive shaft inside. The end of the drive shaft is fixedly connected to one end of the shaft (21) through a coupling.

4. A laser engraving machine for preventing workpiece displacement according to claim 3, characterized in that: The surface of the shaft (21) is provided with threaded protrusions (24). The threaded protrusions (24) are provided in two sections on the shaft (21). The threaded protrusions (24) located on both sides are of the same length and opposite in direction. The surface of the threaded protrusions (24) is threadedly connected to a threaded sleeve (25). The outer ring wall of the threaded sleeve (25) is fixedly assembled with one end of the limiting block (16) located inside the inner cavity (18).

5. A laser engraving machine for preventing workpiece displacement according to claim 1, characterized in that: Both ends of the connecting plate (13) are fixed with an inner sleeve (3). The surface of the clamp (14) is fixedly installed with a threaded post (31) corresponding to the position of the inner sleeve (3). The surface of the threaded post (31) penetrates the interior of the inner sleeve (3). A threaded cap (32) is threadedly installed at the end of the threaded post (31). One end of the threaded cap (32) is fitted with the end face of the inner sleeve (3). Several evenly distributed knobs are fixedly installed on the outer ring wall of the threaded cap (32).

6. A laser engraving machine for preventing workpiece displacement according to claim 1, characterized in that: Both sides of the processing table (1) are fixed with guide rail sub-guide rail one (4), and guide rail sub-slide seat one (41) is slidably arranged on the surface of the guide rail sub-guide rail one (4). The upper ends of the guide rail sub-slide seats one (41) distributed along both sides are connected to the same moving frame (42).

7. A laser engraving machine for preventing workpiece displacement according to claim 6, characterized in that: The lower end of the movable frame (42) is fixedly installed with a guide rail secondary guide rail (43), and a guide rail secondary slide block (44) is slidably arranged on the surface of the guide rail secondary guide rail (43).

8. A laser engraving machine for preventing workpiece displacement according to claim 7, characterized in that: A cylinder 2 (45) is fixed on the surface of the guide rail slide 2 (44). A piston rod 2 is provided inside the cylinder 2 (45). The piston rod 2 is set downward and perpendicular to the processing table (1). A laser engraving head (46) is fixedly installed at the end of the piston rod 2.

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