Rapid positioning and clamping device for laser cutting die

Abstract

The invention discloses a rapid positioning and clamping device for a laser cutting die, and relates to the field of cutting die fixing mechanical arms, the rapid positioning and clamping device comprises a positioning mounting frame, a servo motor is mounted at the front end of the positioning mounting frame, a cutting die main body is arranged at the center of the bottom end of the positioning mounting frame, and two main clamping blocks are arranged at the bottom end of the cutting die main body; the main clamping block is arranged at the bottom end of the cutting die body to complete positioning and clamping of the cutting die body, an induction mechanism is arranged at the bottom end of the main clamping block and comprises a trigger plate, an air injection rod and a connecting port, and the trigger plate synchronously switches the air injection rod to the working state after the main clamping block completes positioning and clamping of the cutting die body. The bottom end sensing mechanism is automatically triggered and simulates a flexible stirring behavior after clamping is completed, so that cut materials naturally fall off from the cutting die body under the action of airflow, the surface of the materials is prevented from being scratched or deformed, abrasion of a cutting edge of the cutting die body caused by forced separation is reduced, and meanwhile, cleanliness and integrity of the cutting edge are ensured.

Description

A rapid positioning and clamping device for laser die-cutting Technical Field

[0001] This invention relates to the field of mechanical arm technology for fixing die-cutting molds, specifically a rapid positioning and clamping device for laser die-cutting molds. Background Technology

[0002] Laser cutting technology, as one of the core processes of advanced manufacturing, has expanded from its early application in the processing of thick metal plates to a wide range of precision light industrial fields, including packaging and printing, electronic components, textiles and apparel, automotive interiors, advertising signage, and even medical equipment. Laser die-cutting, with its advantages of non-contact cutting, smooth edges, and strong adaptability to complex patterns, has become the preferred tool for high-precision die-cutting in these industries. With the deepening of intelligent manufacturing, production models are developing towards small-batch, multi-variety, and fast-delivery directions, placing unprecedentedly high standards on the rapid changeover capabilities, process stability, and yield of end products in laser processing units. Laser cutting workstations are no longer just isolated processing equipment but need to be deeply integrated into automated production lines, seamlessly coordinating with material handling, visual positioning, and quality inspection. Therefore, the performance of the die-cutting clamping system, as the execution terminal of laser cutting, directly determines the efficiency of the entire processing unit.

[0003] Traditional clamping structures, such as manual screws or fixed pneumatic clamps, have slow positioning speeds and low repeatability, requiring multiple adjustments to align with the die, making it difficult to meet the needs of rapid production changeover. After cutting, materials often adhere to the die or worktable due to electrostatic adsorption, residue adhesion, or vacuum effects. Traditional methods rely on manual peeling or mechanical scraping, which is inefficient and easily scratches the material surface, affecting the continuity of automation and making it impossible to automatically switch working modes according to the clamping status. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a rapid positioning and clamping device for laser die-cutting, which can effectively solve the problems of the prior art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This invention discloses a rapid positioning and clamping device for laser die-cutting molds, including a positioning mounting frame. A servo motor is mounted on the front end of the positioning mounting frame, and a die-cutting mold body is disposed at the center of the bottom end of the positioning mounting frame. Two main clamping blocks are disposed at the bottom end of the die-cutting mold body. The two main clamping blocks are used to move in opposite directions following the start of the servo motor to complete the positioning and clamping of the die-cutting mold body. A sensing mechanism is disposed at the bottom end of the main clamping blocks. The sensing mechanism includes a trigger plate, an air jet rod, and a connection port. After the main clamping blocks complete the positioning and clamping of the die-cutting mold body, the trigger plate synchronously switches the air jet rod to the working state. The connection port is used to connect an external air pump to connect a regulated airflow. Through intermittent air supply, under the action of the airflow pulse impact force, the air jet rod is made to be in a cyclic swinging state, so that the swinging airflow simulates the plucking behavior to assist the material being cut by the die-cutting mold body to flexibly fall off.

[0009] Furthermore, a fixing frame is fixedly connected to the top of the die body, and mounting slots are provided on both the left and right sides of the fixing frame. One end of the main clamping block and the trigger plate both extend into the interior of the mounting slots.

[0010] Furthermore, the trigger plate is slidably connected to the main clamping block, and a torsion spring is sleeved on the surface of the trigger plate. One end of the torsion spring is fixedly connected to the surface of the trigger plate, and the other end of the trigger plate is fixedly connected to the inner wall of the main clamping block. An air guide hole is opened on the surface of the trigger plate.

[0011] Furthermore, a drive rod is slidably connected to one end of the trigger plate, and a second torsion spring is sleeved on the surface of the drive rod. One end of the second torsion spring is fixedly connected to the surface of the drive rod, and the other end of the second torsion spring is fixedly connected to the surface of the trigger plate.

[0012] Furthermore, the top end of the jet rod is rotatably connected to the bottom end of the drive rod, the jet rod is connected to the drive rod, the bottom end of the jet rod is fixedly connected to a jet nozzle, and the end of the drive rod away from the trigger plate is fixedly connected to a sealing rod.

[0013] Furthermore, each of the jet rods has a connecting rod rotatably connected to its surface, and one end of each connecting rod is rotatably connected to a support frame. The top of each support frame is fixed to the bottom of the main clamping block.

[0014] Furthermore, each of the main clamping blocks has an air guide groove on its surface, and each of the connection ports is fixedly connected to the top of the air guide groove and is connected to the air guide groove.

[0015] Furthermore, the positioning mounting bracket has two rotatably connected sector gears inside, the two sector gears meshing together, and a transmission rod is fixedly connected to the bottom end of each sector gear. The output shaft of the servo motor passes through the positioning mounting bracket and is fixedly connected to the central shaft of the sector gear on the left.

[0016] Furthermore, each of the two transmission rods is provided with a transmission rod 2 on the side of the transmission rod 1 that is close to each other. The top end of each transmission rod 2 is rotatably connected to the inner wall of the positioning mounting frame, and the bottom end of each transmission rod 1 and transmission rod 2 is rotatably connected to the top end of the main clamping block.

[0017] (III) Beneficial Effects

[0018] Compared with the known prior art, the technical solution provided by this invention has the following beneficial effects:

[0019] 1. The two main clamping blocks are driven by a servo motor installed at the front end to move in opposite directions, so as to achieve rapid and symmetrical clamping of the die body. The structure is simple and the response is fast, which shortens the installation and alignment time of the die body. During the clamping process, the symmetrical force is provided to avoid the skew caused by unilateral stress, ensuring that the die maintains high precision and stability in laser cutting. At the same time, the bottom sensing mechanism is automatically triggered after clamping is completed, realizing intelligent state switching, reducing manual intervention, and improving the automation level of the equipment and the consistency of production rhythm.

[0020] 2. By adopting a combination of flexible clamping and airflow-assisted demolding mechanism, the risk of physical damage to materials and die is effectively reduced. The jet rod driven by the sensing mechanism oscillates in a cycle under the impact of airflow pulses, simulating the flexible material-picking behavior of a human hand. This allows the cut material, especially thin or sticky materials, to naturally fall off the die body under the action of airflow, without the need for mechanical contact peeling. This not only prevents scratches or deformation of the material surface, but also reduces the wear of the die body's cutting edge caused by forced separation, extending tool life, while ensuring the cleanliness and integrity of the cutting edge.

[0021] 3. An external air pump is connected to the connection port to provide intermittently stable airflow. The jet rod is driven to swing by pulse impact force, forming a non-contact demolding assistance. It is adaptable to various material properties, expanding the application range of laser cutting. The overall design is compact and can be easily integrated into existing laser equipment, reducing the cost of modification. Its circulating swing airflow can also assist in heat dissipation and chip removal, improving the working environment. Through functional integration, the reliability of the laser cutting system is improved. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0023] Figure 1 is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 is a schematic cross-sectional view of the present invention;

[0025] Figure 3 is a partially enlarged structural diagram of point A in Figure 2 of the present invention;

[0026] Figure 4 is a side view cross-sectional structural diagram of the jet rod and drive rod in this invention;

[0027] Figure 5 is a three-dimensional structural diagram of the sector gear, transmission rod one, and transmission rod two in this invention;

[0028] Figure 6 is a three-dimensional structural diagram of the sealing rod, air jet rod, trigger plate and drive rod in this invention;

[0029] Figure 7 is a three-dimensional structural schematic diagram of the present invention from another angle.

[0030] The labels in the diagram represent: 1. Positioning mounting bracket; 2. Die-making body; 3. Fixing bracket; 4. Servo motor; 5. Sector gear; 6. Transmission rod one; 7. Transmission rod two; 8. Main clamping block; 9. Trigger plate; 10. Torsion spring one; 11. Air guide groove; 12. Air guide hole; 13. Drive rod; 14. Torsion spring two; 15. Sealing rod; 16. Air jet rod; 17. Connecting rod; 18. Support frame; 19. Air jet nozzle; 20. Connection port; 21. Mounting slot. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] The present invention will be further described below with reference to embodiments.

[0033] This embodiment of a rapid positioning and clamping device for laser die-cutting molds, as shown in Figures 1-7, includes a positioning mounting frame 1. A servo motor 4 is mounted on the front end of the positioning mounting frame 1. A die-cutting mold body 2 is located at the center of the bottom end of the positioning mounting frame 1. Two main clamping blocks 8 are located at the bottom end of the die-cutting mold body 2. The two main clamping blocks 8 are used to move in opposite directions following the start of the servo motor 4 to complete the positioning and clamping of the die-cutting mold body 2. Two sector gears 5 are rotatably connected inside the positioning mounting frame 1. The two sector gears 5 are meshed and connected. A transmission rod 6 is fixedly connected to the bottom end of each sector gear 5. The output shaft of the servo motor 4 passes through the positioning mounting frame 1 and is fixedly connected to the central shaft of the left sector gear 5. A transmission rod 7 is provided on the side of the transmission rod 6 that is close to each other. The top end of the transmission rod 7 is rotatably connected to the inner wall of the positioning mounting frame 1. The bottom ends of the transmission rod 6 and the transmission rod 7 are rotatably connected to the top end of the main clamping block 8.

[0034] Compared with existing technologies, the servo motor 4 drives the two main clamping blocks 8 to move symmetrically, achieving rapid automatic centering and clamping. This not only significantly shortens the positioning time but also avoids the skewer body 2 from tilting through symmetrical force distribution, ensuring the stability and repeatability of the die body 2 during the cutting process.

[0035] In other aspects, in this embodiment, the bottom end of the main clamping block 8 is provided with a sensing mechanism, which includes a trigger plate 9, an air jet rod 16 and a connection port 20. After the main clamping block 8 completes the positioning and clamping of the die body 2, the trigger plate 9 simultaneously switches the air jet rod 16 to the working state. The connection port 20 is used to connect an external air pump to connect a stable airflow. Through intermittent air supply, under the action of the airflow pulse force, the air jet rod 16 is in a cyclic swinging state, so that the swinging airflow simulates the plucking behavior to assist the material cut by the die body 2 to fall off flexibly. The surface of the main clamping block 8 is provided with air guide grooves 11, and the connection ports 20 are all fixedly connected to the top of the air guide grooves 11. The connection ports 20 are all connected to the air guide grooves 11.

[0036] A fixing frame 3 is fixedly connected to the top of the die body 2. The fixing frame 3 has mounting grooves 21 on both the left and right sides. One end of the main clamping block 8 and the trigger plate 9 extends into the interior of the mounting groove 21. The trigger plate 9 is slidably connected to the main clamping block 8. A torsion spring 10 is sleeved on the surface of the trigger plate 9. One end of the torsion spring 10 is fixedly connected to the surface of the trigger plate 9. The other end of the trigger plate 9 is fixedly connected to the inner wall of the main clamping block 8. An air guide hole 12 is opened on the surface of the trigger plate 9.

[0037] One end of the trigger plate 9 is slidably connected to a drive rod 13. A torsion spring 14 is sleeved on the surface of the drive rod 13. One end of the torsion spring 14 is fixedly connected to the surface of the drive rod 13, and the other end of the torsion spring 14 is fixedly connected to the surface of the trigger plate 9. The top end of the jet rod 16 is rotatably connected to the bottom end of the drive rod 13. The jet rod 16 and the drive rod 13 are connected. The bottom end of the jet rod 16 is fixedly connected to a jet nozzle 19. The end of the drive rod 13 away from the trigger plate 9 is fixedly connected to a sealing rod 15. The surface of the jet rod 16 is rotatably connected to a connecting rod 17. One end of the connecting rod 17 is rotatably connected to a support frame 18. The top end of the support frame 18 is fixed to the bottom end of the main clamping block 8.

[0038] Compared to existing technologies, the sensing mechanism automatically switches its working state after clamping, eliminating the need for manual inspection or intervention. This achieves a seamless transition from clamping to cutting preparation, enhancing the overall cycle time control capability of automated production lines. It is particularly suitable for high-volume flexible manufacturing scenarios. By combining an adjustable-pressure flexible clamping mechanism with airflow-assisted demolding, physical damage is fundamentally avoided. The circulating oscillating airflow triggered by the sensing mechanism simulates flexible agitation in a non-contact manner, allowing materials to fall naturally without mechanical contact. This not only protects material integrity and reduces scrap rates but also lowers the maintenance frequency of the die body 2, extending its service life. Furthermore, it solves the downtime and cleaning problems caused by adhesion in traditional methods, improving continuous operation efficiency.

[0039] Working principle: Before implementation, the user can fix the positioning mounting frame 1 to the hydraulic lifting equipment by screwing, which is the external power supply for the servo motor 4. The die body 2 is screwed to the fixing frame 3, which is the external air pump connected to the connection port 20, so that the air pump output end is connected.

[0040] The user starts the servo motor 4 by holding the fixed frame 3, which makes the output shaft of the servo motor 4 rotate, thereby driving the left sector gear 5 to rotate. The left sector gear 5 then drives the right sector gear 5 to rotate, thereby driving the two transmission rods 6 to move. Under the limitation of the trajectory of the transmission rod 6 by the transmission rod 7, the transmission rod 6 and the transmission rod 7 drive the main clamping block 8 to move closer to each other. The main clamping block 8 drives the trigger plate 9 to insert into the mounting slot 21, thus completing the fixation of the fixed frame 3.

[0041] As shown in Figure 3, when the trigger plate 9 is inserted into the mounting slot 21, it abuts against the inner wall of the mounting slot 21. The trigger plate 9 moves within the main clamping block 8 and drives the torsion spring 10 to compress, so that the air guide hole 12 is connected to the air guide groove 11. During this process, the trigger plate 9 drives the drive rod 13 to move, and the movement trajectory of the jet rod 16 is limited by the connecting rod 17. The support frame 18 provides support for the connecting rod 17, so that the drive rod 13 drives the jet rod 16 to move out of the sealing rod 15 during the movement, so that the jet nozzle 19 faces the die body 2. When the air pump at the connection port 20 moves, intermittent air supply is set, so that the pulse airflow enters the air guide groove from the connection port 20. 11. The air enters the drive rod 13 through the air guide hole 12. During the process of entering the drive rod 13, it impacts the inner wall of the drive rod 13, causing the jet rod 16 to swing continuously with the intermittent impact of the pulse airflow, relying on the connecting rod 17. This allows the airflow to enter the jet rod 16 through the drive rod 13 and finally spray onto the die body 2 through the jet nozzle 19. By swinging the airflow, the material cut by the die body 2 is detached from the die body 2. When the processing is completed and the die body 2 needs to be replaced, the airflow supply is stopped, and the output shaft of the servo motor 4 is reversed, causing the main clamping block 8 and the trigger plate 9 to disengage from the mounting slot 21, so that all components are reset, and the sealing rod 15 re-covers the jet nozzle 19.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid positioning and clamping device for laser die-cutting, characterized in that, The device includes a positioning mounting frame (1), with a servo motor (4) mounted at the front end of the positioning mounting frame (1). A die-cutting body (2) is located at the center of the bottom end of the positioning mounting frame (1). Two main clamping blocks (8) are located at the bottom end of the die-cutting body (2). The two main clamping blocks (8) are used to move in opposite directions following the start of the servo motor (4) to complete the positioning and clamping of the die-cutting body (2). A sensing mechanism is located at the bottom end of the main clamping blocks (8). The sensing mechanism includes a trigger plate (9), an air jet rod (16), and a connection port (20). After the main clamping blocks (8) complete the positioning and clamping of the die-cutting body (2), the trigger plate (9) synchronously switches the air jet rod (16) to the working state. The connection port (20) is used to connect an external air pump to connect a regulated airflow. Through intermittent air supply, under the action of the airflow pulse force, the air jet rod (16) is in a cyclic swinging state, so that the swinging airflow simulates the plucking behavior to assist the material cut by the die-cutting body (2) to flexibly fall off.

2. The rapid positioning and clamping device for laser die-cutting according to claim 1, characterized in that, The top of the die body (2) is fixedly connected to a fixing frame (3), and the fixing frame (3) has mounting slots (21) on both the left and right sides. One end of the main clamping block (8) and the trigger plate (9) extends into the interior of the mounting slots (21).

3. The rapid positioning and clamping device for laser die-cutting according to claim 1, characterized in that, The trigger plate (9) is slidably connected to the main clamping block (8). A torsion spring (10) is sleeved on the surface of the trigger plate (9). One end of the torsion spring (10) is fixedly connected to the surface of the trigger plate (9). The other end of the trigger plate (9) is fixedly connected to the inner wall of the main clamping block (8). An air guide hole (12) is opened on the surface of the trigger plate (9).

4. The rapid positioning and clamping device for laser die-cutting according to claim 1, characterized in that, One end of the trigger plate (9) is slidably connected to a drive rod (13), and a torsion spring (14) is sleeved on the surface of the drive rod (13). One end of the torsion spring (14) is fixedly connected to the surface of the drive rod (13), and the other end of the torsion spring (14) is fixedly connected to the surface of the trigger plate (9).

5. The rapid positioning and clamping device for laser die-cutting according to claim 4, characterized in that, The top end of the jet rod (16) is rotatably connected to the bottom end of the drive rod (13). The jet rod (16) is connected to the drive rod (13). The bottom end of the jet rod (16) is fixedly connected to the jet nozzle (19). The end of the drive rod (13) away from the trigger plate (9) is fixedly connected to the sealing rod (15).

6. The rapid positioning and clamping device for laser die-cutting according to claim 5, characterized in that, The surface of each jet rod (16) is rotatably connected to a connecting rod (17), and one end of each connecting rod (17) is rotatably connected to a support frame (18). The top end of each support frame (18) is fixed to the bottom end of the main clamping block (8).

7. The rapid positioning and clamping device for laser die-cutting according to claim 1, characterized in that, The surface of each main clamping block (8) is provided with an air guide groove (11), and each connection port (20) is fixedly connected to the top of the air guide groove (11). Each connection port (20) is connected to the air guide groove (11).

8. The rapid positioning and clamping device for laser die-cutting according to claim 1, characterized in that, The positioning mounting bracket (1) has two rotatably connected sector gears (5), which mesh with each other. The bottom of each sector gear (5) is fixedly connected to a transmission rod (6). The output shaft of the servo motor (4) passes through the positioning mounting bracket (1) and is fixedly connected to the central shaft of the sector gear (5) on the left.

9. The rapid positioning and clamping device for laser die-cutting according to claim 8, characterized in that, On the side of each of the first transmission rods (6) that are close to each other, there is a second transmission rod (7). The top of the second transmission rod (7) is rotatably connected to the inner wall of the positioning mounting frame (1). The bottom of the first transmission rod (6) and the second transmission rod (7) are rotatably connected to the top of the main clamping block (8).

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