Laser cutting device convenient to lift

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By setting up an early warning ring on the bottom of the cutting head of the laser cutting device, combined with the design of linear motors and fixed components, the automatic lifting and lowering of the cutting head is achieved, which solves the problem of cutting head damage caused by uneven stress on the plate, and improves the safety of the cutting process and stability.

CN222429563UActive Publication Date: 2025-02-07HUNAN YIQI AUTOMATION EQUIP CO LTD

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Patent Information

Application Number: CN202420315338.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-02-20
Publication Date: 2025-02-07
Estimated Expiration: 2034-02-20

AI Technical Summary

Technical Problem

When existing laser cutting equipment cuts the plate, due to uneven stress on the plate, the plate may easily rise up locally or suddenly bounce, causing damage to the cutting head.

Method used

A laser cutting device for easy lifting is designed. By setting an early warning ring at the bottom of the cutting head and combining the design of a linear motor and fixed components, the cutting head can be automatically lifted and lowered, avoiding collision with the rebounding plate.

Benefits of technology

It effectively avoids damage caused by the plate's rebound, and at the same time, the steel plate is press-fitted through the fixing components, reducing the risk of the plate's rebound.

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Abstract

The utility model relates to the technical field of laser cutting, in particular to a laser cutting device convenient to lift, which comprises a bottom plate, a sliding rail is fixedly connected to the upper end of the bottom plate, a sliding plate is slidably connected to the sliding rail, and a support is fixedly connected to one side of the bottom plate. The cutting part is movably connected to the outer surface of the support, a linear motor is fixedly connected to the upper end of the cutting part, and when the lower end of the cutting part is impacted, the linear motor drives the cutting part to move upwards; the early warning ring is arranged at the bottom of the cutting head, when the cut steel plate suddenly bounces due to pulling of stress, the steel plate can make contact with the early warning ring, the diameter of the early warning ring is larger than that of the cutting head, the linear motor is triggered through the early warning ring, the linear motor drives the cutting head to move upwards, and the cutting head is taken away from a collision area; and meanwhile, through the fixing assembly, a pressing roller is adopted for fixing the steel plate in a pressing mode, and the situation that the cut steel plate suddenly bounces is avoided.

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Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a laser cutting device which is easy to lift. Background Art

[0002] Laser cutting uses a focused high-power density laser beam to irradiate the workpiece, causing the irradiated material to quickly melt, vaporize, ablate or reach the ignition point, and at the same time uses a high-speed airflow coaxial with the beam to blow away the molten material, thereby achieving the workpiece. Laser cutting is one of the thermal cutting methods;

[0003] Due to the differences in materials and manufacturing processes, existing plates are subject to stress, which may lead to uneven stress. After cutting, parts of the plates may be lifted or suddenly bounced. When such plates are cut with existing cutting equipment, the plates are prone to collide with the cutting head, causing damage to the cutting head. To this end, we propose a laser cutting device that is easy to lift. Utility Model Content

[0004] The purpose of the utility model is to provide a laser cutting device which is easy to lift and lower, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a laser cutting device that is easy to lift, comprising a bottom plate, a slide rail is fixedly connected to the upper end of the bottom plate, a slide plate is slidably connected to the slide rail, and a bracket is fixedly connected to one side of the bottom plate;

[0006] A cutting part, wherein the cutting part is movably connected to the outer surface of the bracket, and a linear motor is fixedly connected to the upper end of the cutting part. When the lower end of the cutting part is impacted, the linear motor drives the cutting part to move upward;

[0007] The fixing component is arranged on one side of the bottom plate and can squeeze and fix the steel plate placed on the slide plate.

[0008] Preferably, the cutting part comprises a fixing rod, the fixing rod is fixedly connected to the surface of the linear motor, the lower end of the fixing rod is connected to a cutting head, and the lower end of the cutting head is connected to an early warning ring.

[0009] Preferably, a warning block is fixedly connected to the outer surface of the upper end of the warning ring, a warning groove is opened at the corresponding position of the annular outer surface of the cutting head and the warning block, the warning block is located inside the warning groove, a spring 2 is fixedly connected between the upper end of the warning block and the warning groove, and a switch 1 is fixedly connected to the lower end of the inner surface of the warning groove.

[0010] Preferably, a sliding cavity is provided on the outer surface of the upper end of the cutting head, the fixed rod extends into the sliding cavity, the annular outer surface of the fixed rod is fixedly connected with a guide block, a guide groove 23 is provided at a position corresponding to the guide block inside the sliding cavity, the guide block is located inside the guide groove, an electromagnet 1 is fixedly connected to the lower end of the inner surface of the sliding cavity, an electromagnet 2 is fixedly connected to the lower end of the fixed rod, the electromagnet 1 and the electromagnet 2 repel each other, and a spring 1 is fixedly connected between the electromagnet 1 and the electromagnet 2.

[0011] Preferably, the fixing component includes a servo motor, the servo motor is fixedly connected to the outer surface of one side of the base plate, the output end of the servo motor is fixedly connected to a screw, the outer surface of the screw is threadedly connected to a sliding block, a lifting groove is opened inside the sliding block, a lifting plate is slidably arranged inside the lifting groove, the upper end of the lifting plate is fixedly connected to a lifting rod, the outer surface of one side of the upper end of the lifting rod is rotatably connected to a pressing roller via a rotating shaft, and a spring three is fixedly connected between the lower end of the lifting plate and the lifting groove.

[0012] Preferably, a flow groove is opened on the outer surface of the lifting plate, and electrorheological fluid is injected into the lifting groove. A guide block is fixedly connected to one side of the sliding block, and a guide rail is fixedly connected to one side of the base plate at a position corresponding to the guide block, and the guide block is stuck on the outer surface of the guide rail.

[0013] Preferably, an upper push rod is fixedly connected to the upper end of the warning block, a pushing cavity is opened at the upper end of the inner surface of the warning groove, an upper push block is slidably connected inside the pushing cavity, the lower end of the upper push block is fixedly connected to the upper push rod, a switch 2 is provided at the upper end of the inner surface of the pushing cavity, a lifting plate is bonded to the lower end of the switch 2, and an overflow hole is opened through the outer surface of the upper push block.

[0014] The utility model has at least the following beneficial effects:

[0015] The utility model provides a warning ring at the bottom of the cutting head. When the steel plate is pulled by stress and suddenly bounces up after cutting, it will contact the warning ring. The diameter of the warning ring is larger than the diameter of the cutting head. The linear motor is triggered by the warning ring, and the cutting head is driven by the linear motor to move upward, thereby moving the cutting head away from the collision area, thereby avoiding the cutting head from being hit. At the same time, the steel plate is fixed by a pressing roller through the fixing component to avoid the steel plate from suddenly bouncing up after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3It is a schematic diagram of the cutaway structure of the cutting head of the utility model;

[0019] Figure 4 It is a schematic diagram of the exploded structure of the fixing assembly of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the early warning block and the early warning slot of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the second embodiment of the utility model.

[0022] In the figure: 1. bottom plate; 10. bracket; 11. slide rail; 12. steel plate; 13. slide plate; 2. cutting part; 20. cutting head; 21. fixing rod; 211. electromagnet 2; 22. slide cavity; 23. guide groove; 24. guide block; 25. spring 1; 26. electromagnet 1; 27. warning groove; 271. spring 2; 272. switch 1; 28. warning block; 281. upper push rod; 282. upper push block; 283. overflow hole; 284. push cavity; 285. lifting plate; 286. switch 2; 29. warning ring; 3. fixing assembly; 30. servo motor; 31. screw; 32. slide block; 33. guide rail; 34. guide block; 35. lifting rod; 36. pressing roller; 37. lifting plate; 38. flow groove; 39. lifting groove; 391. spring 3; 4. linear motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: a laser cutting device that is easy to lift, comprising a bottom plate 1, a slide rail 11 is fixedly connected to the upper end of the bottom plate 1, a slide plate 13 is slidably connected to the slide rail 11, and a bracket 10 is fixedly connected to one side of the bottom plate 1;

[0025] The cutting part 2 is movably connected to the outer surface of the bracket 10. The upper end of the cutting part 2 is fixedly connected to a linear motor 4. When the lower end of the cutting part 2 is impacted, the linear motor 4 drives the cutting part 2 to move upward to prevent the steel plate 12 from being affected by stress and suddenly bouncing up to cause impact on the cutting head 20 during cutting.

[0026] The fixing component 3 is arranged on one side of the bottom plate 1 and can squeeze and fix the steel plate 12 placed on the slide plate 13 to reduce the influence of stress on the steel plate 12 .

[0027] The cutting part 2 includes a fixing rod 21, which is fixedly connected to the surface of the linear motor 4. The lower end of the fixing rod 21 is connected to a cutting head 20, and the lower end of the cutting head 20 is connected to a warning ring 29. The warning ring 29 is designed as an annular structure and has a diameter larger than the cutting head 20. When impacted, the cutting head 20 can be protected from being directly impacted.

[0028] An early warning block 28 is fixedly connected to the outer surface of the upper end of the early warning ring 29, and an early warning groove 27 is opened at the corresponding position of the annular outer surface of the cutting head 20 and the early warning block 28. The early warning block 28 is located inside the early warning groove 27, and a spring 271 is fixedly connected between the upper end of the early warning block 28 and the early warning groove 27, and a switch 272 is fixedly connected to the lower end of the inner surface of the early warning groove 27. When the early warning ring 29 is impacted, the early warning block 28 is fixedly connected to the early warning ring 29, and the early warning ring 29 drives the early warning block 28 to slide upward along the early warning groove 27 and compresses the spring 271. At this time, the switch 272 at the bottom loses the squeezing of the early warning block 28 and moves upward. At this time, the linear motor 4 triggers the early warning, and quickly controls the cutting head 20 to move upward, and pulls a distance from the impact part to avoid collision with the cutting head 20.

[0029] The upper outer surface of the cutting head 20 is provided with a sliding cavity 22, the fixing rod 21 extends into the sliding cavity 22, the annular outer surface of the fixing rod 21 is fixedly connected with a guide block 24, the sliding cavity 22 is provided with a guide groove 23 at a position corresponding to the guide block 24, the guide block 24 is located in the guide groove 23, the lower end of the inner surface of the sliding cavity 22 is fixedly connected with an electromagnet 1 26, the lower end of the fixing rod 21 is fixedly connected with an electromagnet 211, the electromagnet 1 26 and the electromagnet 211 repel each other, the electromagnet 1 26 and the electromagnet 211 repel each other, and the electromagnet 1 26 and the electromagnet 211 repel each other. A spring 25 is fixedly connected between the magnet 211, and the switch 272 is electrically connected to the electromagnet 26 and the electromagnet 211. When the switch 272 triggers the linear motor 4 to move upward, the electromagnet 26 and the electromagnet 211 are powered off at the same time. At this time, the spring 25 quickly pulls the cutting head 20 upward, further accelerating the upward movement of the cutting head 20 to avoid the cutting head 20 from being hit. The design of the guide block 24 and the guide groove 23 can limit the maximum movement distance of the cutting head 20 and increase the stability of the cutting head 20.

[0030] The fixing assembly 3 includes a servo motor 30, which is fixedly connected to the outer surface of one side of the base plate 1. The output end of the servo motor 30 is fixedly connected to a screw rod 31, and the outer surface of the screw rod 31 is threadedly connected to a sliding block 32. A lifting groove 39 is provided inside the sliding block 32, and a lifting plate 37 is slidably provided inside the lifting groove 39. A lifting rod 35 is fixedly connected to the upper end of the lifting plate 37, and a pressing roller 36 is rotatably connected to the outer surface of one side of the upper end of the lifting rod 35 through a rotating shaft. A spring 391 is fixedly connected between the lower end of the lifting plate 37 and the lifting groove 39. A flow groove 38 is provided on the outer surface of the lifting plate 37, and an electrorheological fluid is injected into the lifting groove 39. A guide block 34 is fixedly connected to one side of the sliding block 32, and one side of the base plate 1 corresponds to the guide block 34. The guide rail 33 is fixedly connected to the plate 13, and the guide block 34 is stuck on the outer surface of the guide rail 33. After the user places the steel plate 12 on the slide plate 13, the pressing roller 36 contacts the steel plate 12 after the spring three 391 pulls the lifting plate 37 downward. At this time, the lifting plate 37 is inside the electrorheological fluid in a liquid state, and the electrorheological fluid flows along the flow groove 38. Then the user energizes the electrorheological fluid inside the lifting groove 39 to make it solid, and connects the lifting rod 35 with the sliding block 32 and the lifting plate 37 into a solid. Then, the servo motor 30 drives the threaded rod movement mechanism to press the roller to the vicinity of the cutting, and limits and fixes the steel plate 12 being cut to prevent the steel plate 12 from bouncing up due to stress after cutting and causing a collision with the cutting head 20. The electrorheological fluid is energized through the guide rail 33 and the guide block 34.

[0031] Embodiment 2

[0032] The upper end of the warning block 28 is fixedly connected to an upper push rod 281, and the upper end of the inner surface of the warning groove 27 is provided with a pushing cavity 284. The pushing cavity 284 is slidably connected with an upper push block 282. The lower end of the upper push block 282 is fixedly connected to the upper push rod 281. A switch 286 is provided at the upper end of the inner surface of the pushing cavity 284. A lifting plate 285 is bonded to the lower end of the switch 286. An overflow hole 283 is provided through the outer surface of the upper push block 282. When the warning ring 29 is subjected to a rapid impact, the warning block 28 pushes the upper push block 282 to push the cavity 284 to slide upward through the upper push rod 281. Damping fluid is injected into the pushing cavity 284. Due to the sudden impact, the damping fluid is released. The liquid does not have time to flow through the overflow hole 283 and directly acts on the lifting plate 285, so that the lifting plate 285 pushes the switch 2 286 to move upward inside the push chamber 284. At this time, the switch 2 286 is triggered, and the linear motor 4 drives the cutting head 20 to move upward. The electromagnet 1 26 and the electromagnet 2 211 are powered off, and the spring 1 25 pulls the cutting head 20 to move toward the fixed rod 21. The function of the switch 2 286 is the same as that of the switch 1 272, and it is electrically connected to the linear motor 4, the electromagnet 1 26 and the electromagnet 2 211. Through the above-mentioned technical structure, the linear motor 4 can be triggered when the early warning ring 29 is suddenly impacted, and the cutting head 20 can be moved away from the impact area to avoid damage.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] 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 device that is easy to lift, comprising a base plate (1), a slide rail (11) being fixedly connected to the upper end of the base plate (1), a slide plate (13) being slidably connected to the slide rail (11), and a bracket (10) being fixedly connected to one side of the base plate (1); Features: A cutting part (2), the cutting part (2) being movably connected to the outer surface of the bracket (10), the upper end of the cutting part (2) being fixedly connected to a linear motor (4), and when the lower end of the cutting part (2) is impacted, the linear motor (4) will drive the cutting part (2) to move upward; A fixing component (3) is arranged on one side of the bottom plate (1) and can squeeze and fix the steel plate (12) placed on the slide plate (13).

2. The laser cutting device that is easy to lift according to claim 1 is characterized in that: The cutting part (2) comprises a fixing rod (21), the fixing rod (21) is fixedly connected to the surface of the linear motor (4), the lower end of the fixing rod (21) is connected to a cutting head (20), and the lower end of the cutting head (20) is connected to an early warning ring (29).

3. The laser cutting device that is easy to lift according to claim 2, characterized in that: The outer surface of the upper end of the warning ring (29) is fixedly connected to a warning block (28); a warning groove (27) is provided at a position corresponding to the annular outer surface of the cutting head (20) and the warning block (28); the warning block (28) is located inside the warning groove (27); a spring 2 (271) is fixedly connected between the upper end of the warning block (28) and the warning groove (27); and a switch 1 (272) is fixedly connected to the lower end of the inner surface of the warning groove (27).

4. The laser cutting device that is easy to lift according to claim 2 is characterized in that: The upper outer surface of the cutting head (20) is provided with a sliding cavity (22), the fixing rod (21) extends into the sliding cavity (22), the annular outer surface of the fixing rod (21) is fixedly connected with a guide block (24), the sliding cavity (22) is provided with a guide groove (23) at a position corresponding to the guide block (24), the guide block (24) is located in the guide groove (23), the lower end of the inner surface of the sliding cavity (22) is fixedly connected with an electromagnet 1 (26), the lower end of the fixing rod (21) is fixedly connected with an electromagnet 2 (211), the electromagnet 1 (26) and the electromagnet 2 (211) repel each other, and a spring 1 (25) is fixedly connected between the electromagnet 1 (26) and the electromagnet 2 (211).

5. The laser cutting device that is easy to lift according to claim 1 is characterized in that: The fixing component (3) includes a servo motor (30), the servo motor (30) is fixedly connected to the outer surface of one side of the base plate (1), the output end of the servo motor (30) is fixedly connected to a screw rod (31), the outer surface of the screw rod (31) is threadedly connected to a sliding block (32), a lifting groove (39) is provided inside the sliding block (32), a lifting plate (37) slides inside the lifting groove (39), the upper end of the lifting plate (37) is fixedly connected to a lifting rod (35), the outer surface of one side of the upper end of the lifting rod (35) is rotatably connected to a pressing roller (36), and a spring three (391) is fixedly connected between the lower end of the lifting plate (37) and the lifting groove (39).

6. The laser cutting device that is easy to lift according to claim 5, characterized in that: The outer surface of the lifting plate (37) is provided with a flow groove (38), and the lifting groove (39) is injected with electrorheological fluid. One side of the sliding block (32) is fixedly connected with a guide block (34), and one side of the bottom plate (1) is fixedly connected with a guide rail (33) at a position corresponding to the guide block (34), and the guide block (34) is stuck on the outer surface of the guide rail (33).

7. The laser cutting device that is easy to lift according to claim 3 is characterized in that: The upper end of the warning block (28) is fixedly connected to an upper push rod (281), the upper end of the inner surface of the warning groove (27) is provided with a pushing cavity (284), the inner part of the pushing cavity (284) is slidably connected with an upper push block (282), the lower end of the upper push block (282) is fixedly connected to the upper push rod (281), the upper end of the inner surface of the pushing cavity (284) is provided with a switch 2 (286), the lower end of the switch 2 (286) is bonded with a lifting plate (285), and the outer surface of the upper push block (282) is penetrated by an overflow hole (283).