Laser cutting machine with efficient heat dissipation function

Abstract

The utility model relates to the technical field of laser cutting machines, in particular to a laser cutting machine with an efficient heat dissipation function, which comprises an operation table and a laser cutter, the laser cutter is hung above the operation table through a portal frame, and a via hole is formed in the position, under the laser cutter, of the operation table. A heat dissipation wheel disc with the top end face flush with the top end face of the operation table is rotationally connected to the position of the via hole, a heat conduction and dissipation pressing ring is arranged above the heat dissipation wheel disc, and two limiting strips with the distance adjustable are symmetrically arranged on the two sides of the heat conduction and dissipation pressing ring. The laser cutting device further comprises a lifting mechanism used for lifting the heat conduction and dissipation pressing ring and the two limiting strips and a direction adjusting mechanism used for driving the two limiting strips to integrally rotate around the laser cutter, a cutting seam can be cooled conveniently from the two sides of the top and the two sides of the bottom of the cutting seam, the cutting seam is rapidly lowered, and the follow-up scalding condition is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, in particular to a laser cutting machine with a high-efficiency heat dissipation function. Background Art

[0002] A laser cutting machine is a machine that focuses the laser emitted from a laser into a high-power density laser beam through an optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting point or boiling point. At the same time, high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, a slit is eventually formed in the material, thereby achieving the purpose of cutting. Existing laser cutting machines are prone to generate heat in two places during the cutting process. One is the heat generated by the operation of the laser cutter itself, and the other is the heat generated at the slit. In order to extend the service life of the laser cutting machine itself, most of the heat is generally only dissipated from the laser cutter body. However, the heat generated at the slit cannot be ignored. The high-temperature slit can easily cause burns during subsequent transportation. Therefore, a laser cutting machine with efficient heat dissipation function that is convenient for cooling the slit is designed. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a laser cutting machine with efficient heat dissipation function, which is convenient for cooling the cut seam from both the top and bottom sides of the cut seam, so that the cut seam can be quickly lowered to avoid subsequent burns.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser cutting machine with efficient heat dissipation function, comprising an operating table and a laser cutter, the laser cutter being hoisted above the operating table through a gantry, a through hole being provided on the operating table at a position directly below the laser cutter, a heat dissipation wheel whose top surface is flush with the top surface of the operating table being rotatably connected to the through hole, a heat-conducting heat-dissipating pressure ring being provided above the heat-dissipating wheel, two limit strips with adjustable spacing being symmetrically provided on both sides of the heat-conducting heat-dissipating pressure ring, a lifting mechanism for lifting the heat-conducting heat-dissipating pressure ring and the two limit strips, and a direction adjustment mechanism for driving the two limit strips to rotate as a whole around the laser cutter.

[0007] Preferably, a fixing frame is fixedly mounted on the heat-conducting heat-dissipating pressure ring, the two limit bars are symmetrically arranged on both sides of the heat-conducting heat-dissipating pressure ring and are both slidably matched with the fixing frame, and the fixing frame is provided with a distance adjustment component for synchronously adjusting the distance between the two limit bars and the heat-conducting heat-dissipating pressure ring.

[0008] Preferably, the pitch adjusting component includes a bidirectional screw rotatably connected to a fixed frame, and two sliders are symmetrically threaded on both sides of the bidirectional screw and are both slidably matched with the fixed frame. It also includes a pitch adjusting motor fixedly mounted on the fixed frame, and a bevel gear is fixedly mounted on the output shaft of the pitch adjusting motor and the bidirectional screw, and the two bevel gears are meshed with each other.

[0009] Preferably, the adjustment mechanism includes a swivel rotatably connected to the bottom of the gantry, the bottom of the swivel is fixedly connected to a fixed ring plate via a plurality of suspension rods, the lifting mechanism is arranged on the fixed ring plate, the bottom of the swivel is fixedly connected to a gear ring, and the gantry is rotatably connected to a rotating gear meshing with the gear ring via an adjustment motor.

[0010] Preferably, the lifting mechanism includes a lifting drive cylinder vertically fixedly mounted on a fixed ring plate, a bottom output shaft of the lifting drive cylinder is fixedly connected to a fixed frame, and the lifting drive cylinder is arranged in two groups and disposed on both sides of the heat-conducting and heat-dissipating pressure ring.

[0011] Preferably, the heat-conducting heat-dissipating pressure ring is configured as a top hollow structure, and the exterior of the heat-conducting heat-dissipating pressure ring is in sliding contact with a heat-dissipating ring sleeve, and the heat-dissipating ring sleeve is fixedly connected to a fixed ring plate.

[0012] Preferably, a cooling box hoisted at the bottom of the operating table is provided at the bottom of the heat dissipation wheel, and the bottom of the heat dissipation wheel extends into the cooling box.

[0013] Preferably, a plurality of rollers are rotatably connected to the side wall of the limiting strip.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a laser cutting machine with efficient heat dissipation function, which has the following beneficial effects:

[0016] The laser cutting machine with efficient heat dissipation function supports the slit by means of a heat dissipation wheel, and rotates synchronously with the movement of the workpiece. According to the principle of heat conduction, the heat at the bottom of the slit is transmitted to the heat dissipation wheel, and the heat is dissipated as the heat dissipation wheel rotates. By providing a heat-conducting heat dissipation pressure ring, it is convenient to contact and limit the top of the slit when the laser cutter is slitting. During the contact, the heat is transferred to the heat-conducting heat dissipation pressure ring, and the heat is dissipated by the heat-conducting heat dissipation pressure ring. The cooperation of the heat dissipation wheel and the heat-conducting heat dissipation pressure ring enables the slit to achieve efficient heat dissipation. A limit strip is provided to limit the workpiece and ensure the accuracy of the cutting. At the same time, the lifting mechanism is convenient for pressing the top and both sides of workpieces of different thicknesses. The direction adjustment mechanism is convenient for rotating the two limit strips around the laser cutter as a whole, thereby improving the flexibility of the horizontal limit on both sides, and conveniently and quickly adjusting the direction of the seam to be cut of the clamped workpiece to be consistent with the rotation direction of the heat dissipation wheel, further ensuring the accuracy of the cutting. The laser cutting machine is convenient for cooling the cutting seam from both the top and bottom sides of the cutting seam, so that the cutting seam can be quickly lowered to avoid subsequent burns while ensuring the accuracy of the cutting seam. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model from other perspectives as a whole;

[0019] Figure 3 It is a schematic diagram of the structure of the cooperation among the limit strip, the lifting mechanism and the direction adjustment mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the limit strip, lifting mechanism and direction adjustment mechanism of the utility model in other viewing angles.

[0021] Markings in the attached drawings: 1. operating table; 2. laser cutter; 3. gantry; 4. heat dissipation wheel; 5. cooling box; 6. fixed frame; 7. heat conduction and heat dissipation pressure ring; 8. limit strip; 9. roller; 10. bidirectional screw; 11. slider; 12. pitch adjustment motor; 13. bevel gear; 14. swivel; 15. suspension rod; 16. fixed ring plate; 17. lifting drive cylinder; 18. gear ring; 19. rotating gear; 20. direction adjustment motor; 21. heat dissipation ring sleeve. DETAILED DESCRIPTION

[0022] 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.

[0023] Example:

[0024] See also Figure 1-4 A laser cutting machine with efficient heat dissipation function comprises an operating table 1 and a laser cutter 2. The laser cutter 2 is hoisted above the operating table 1 through a gantry 3. A through hole is provided on the operating table 1 directly below the laser cutter 2. A heat dissipation wheel 4 whose top surface is flush with the top surface of the operating table 1 is rotatably connected at the through hole. A heat conduction heat dissipation pressure ring 7 is provided above the heat dissipation wheel 4. Two limit bars 8 with adjustable spacing are symmetrically provided on both sides of the heat conduction heat dissipation pressure ring 7. A lifting mechanism for lifting the heat conduction heat dissipation pressure ring 7 and the two limit bars 8 and a direction adjustment mechanism for driving the two limit bars 8 to rotate around the laser cutter 2 as a whole.

[0025] Specifically, a fixing frame 6 is fixedly installed on the heat-conducting heat dissipation pressure ring 7, two limit strips 8 are symmetrically arranged on both sides of the heat-conducting heat dissipation pressure ring 7 and are slidably matched with the fixing frame 6, and a distance adjustment component for synchronously adjusting the distance between the two limit strips 8 and the heat-conducting heat dissipation pressure ring 7 is provided on the fixing frame 6. Through the distance adjustment component, it is convenient to synchronously adjust the distance between the two limit strips 8 and the fixing frame 6, thereby facilitating the centering of the workpiece placed under the heat-conducting heat dissipation pressure ring 7, and further ensuring the accuracy of the cutting seam.

[0026] Specifically, the pitch adjusting component includes a bidirectional screw 10 rotatably connected to the fixed frame 6, and two sliders 11 are symmetrically threaded on both sides of the bidirectional screw 10, both of which are slidably matched with the fixed frame 6. It also includes a pitch adjusting motor 12 fixedly installed on the fixed frame 6, and the output shaft of the pitch adjusting motor 12 and the bidirectional screw 10 are fixedly installed with a bevel gear 13. The two bevel gears 13 are meshed. The pitch adjusting motor 12 is started to make the output shaft of the pitch adjusting motor 12 rotate clockwise or counterclockwise, and the two bevel gears 13 are meshed, thereby driving the bidirectional screw 10 to rotate clockwise or counterclockwise, and then driving the two sliders 11 to move to the middle or to both sides, thereby synchronously adjusting the distance between the two limit bars 8 and the heat-conducting and heat-dissipating pressure ring 7, so as to facilitate the centering of the workpiece placed between the two limit bars 8.

[0027] Specifically, the adjustment mechanism includes a swivel 14 rotatably connected to the bottom of the gantry 3, the bottom of the swivel 14 is fixedly connected to a fixed ring plate 16 through a plurality of suspension rods 15, the lifting mechanism is arranged on the fixed ring plate 16, the bottom of the swivel 14 is fixedly connected to a gear ring 18, and the gantry 3 is rotatably connected to a rotating gear 19 meshing with the gear ring 18 through an adjustment motor 20. The adjustment motor 20 is started to rotate the output shaft of the adjustment motor 20, and the meshing action of the rotating gear 19 and the gear ring 18 facilitates the rotation of the swivel 14, the suspension rod 15 and the fixed ring plate 16 as a whole, thereby driving the lifting mechanism to rotate.

[0028] Specifically, the lifting mechanism includes a lifting drive cylinder 17 vertically fixed on the fixed ring plate 16, the bottom output shaft of the lifting drive cylinder 17 is fixedly connected to the fixed frame 6, and the lifting drive cylinder 17 is arranged in two groups and is arranged on both sides of the heat conductive heat dissipation pressure ring 7. Through the lifting drive cylinder 17, it is convenient to perform overall lifting and adjustment of the fixed frame 6, the heat conductive heat dissipation pressure ring 7 and the two limit bars 8.

[0029] Specifically, the heat-conducting heat-dissipating pressure ring 7 is configured as a top hollow structure, and the outside of the heat-conducting heat-dissipating pressure ring 7 is in sliding contact with a heat-dissipating ring sleeve 21 , which is fixedly connected to the fixed ring plate 16 , further improving the heat dissipation performance of the heat-conducting heat-dissipating pressure ring 7 .

[0030] Specifically, a cooling box 5 hoisted at the bottom of the operating table 1 is provided at the bottom of the heat dissipation wheel 4, and the bottom of the heat dissipation wheel 4 extends into the cooling box 5, and coolant can be injected into the cooling box 5. As the heat dissipation wheel 4 rotates, it enters the cooling box 5, and the heat dissipation wheel 4 is quickly exchanged with the coolant in the cooling box 5, thereby ensuring the heat dissipation performance of the heat dissipation wheel 4.

[0031] Specifically, a plurality of rollers 9 are rotatably connected to the side wall of the limit bar 8, and the limit bar 8 is isolated from the workpiece through the plurality of rollers 9, thereby reducing friction and ensuring the horizontal stability of the workpiece when being pushed horizontally during cutting.

[0032] When in use, the workpiece is placed on the operating table 1 and one end of the workpiece is inserted between the two limit bars 8, and then the two limit bars 8 are centered to limit the two sides of the workpiece, and then the heat-conducting heat dissipation pressure ring 7 and the two limit bars 8 are lowered as a whole through the lifting mechanism to limit the top of the workpiece, and then the laser cutter 2 is started to perform laser slitting on the workpiece, and the workpiece is pushed horizontally from between the two limit bars 8. While pushing, the bottom of the slit drives the heat dissipation wheel 4 to rotate. According to the principle of heat conduction, the heat at the bottom of the slit is transmitted to the heat dissipation wheel 4, and heat is dissipated as the heat dissipation wheel 4 rotates. By setting the heat-conducting heat-dissipating pressure ring 7, it is convenient to contact and limit the top of the slit when the laser cutter 2 is cutting. During the contact, the heat is transferred to the heat-conducting heat-dissipating pressure ring 7, and the heat is dissipated by the heat-conducting heat-dissipating pressure ring 7. When the operating space is idle or the workpiece is difficult to fine-tune due to its heavy weight, the direction of rotation of the two limit bars 8 around the laser cutter 2 can be adjusted by the adjustment mechanism as a whole, so that the two limit bars 8 can quickly limit the workpiece to the left and right, so that the workpiece can quickly return to the direction consistent with the rotation direction of the heat dissipating wheel 4, thereby cooperating with the laser cutter 2, thereby ensuring the accuracy of the slit and improving the operational flexibility.

[0033] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0034] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0035] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0036] It should be noted that, in this article, relational terms such as "first" and "second" 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A laser cutting machine with efficient heat dissipation function, comprising an operating table (1) and a laser cutter (2), characterized in that: The laser cutter (2) is hoisted above the operating table (1) via a gantry (3); a through hole is provided on the operating table (1) at a position directly below the laser cutter (2); a heat dissipation wheel (4) whose top surface is flush with the top surface of the operating table (1) is rotatably connected to the through hole; a heat conduction heat dissipation pressure ring (7) is provided above the heat dissipation wheel (4); two spacing-adjustable limit bars (8) are symmetrically provided on both sides of the heat conduction heat dissipation pressure ring (7); a lifting mechanism for lifting the heat conduction heat dissipation pressure ring (7) and the two limit bars (8) and a direction adjustment mechanism for driving the two limit bars (8) to rotate around the laser cutter (2) as a whole.

2. The laser cutting machine with high-efficiency heat dissipation function according to claim 1, characterized in that: A fixing frame (6) is fixedly mounted on the heat-conducting heat-dissipating pressure ring (7), two limiting strips (8) are symmetrically arranged on both sides of the heat-conducting heat-dissipating pressure ring (7) and are both slidably matched with the fixing frame (6), and a distance adjustment component for synchronously adjusting the distance between the two limiting strips (8) and the heat-conducting heat-dissipating pressure ring (7) is arranged on the fixing frame (6).

3. The laser cutting machine with high-efficiency heat dissipation function according to claim 2, characterized in that: The pitch adjustment component comprises a bidirectional screw (10) rotatably connected to a fixed frame (6), two sliding blocks (11) are symmetrically threadedly connected to the two sides of the bidirectional screw (10) and are both slidably matched with the fixed frame (6), and also comprises a pitch adjustment motor (12) fixedly mounted on the fixed frame (6), and a bevel gear (13) is fixedly mounted on the output shaft of the pitch adjustment motor (12) and the bidirectional screw (10), and the two bevel gears (13) are meshed with each other.

4. The laser cutting machine with high-efficiency heat dissipation function according to claim 3, characterized in that: The direction adjustment mechanism comprises a swivel (14) rotatably connected to the bottom of the gantry (3); the bottom of the swivel (14) is fixedly connected to a fixed ring plate (16) via a plurality of suspension rods (15); the lifting mechanism is arranged on the fixed ring plate (16); the bottom of the swivel (14) is fixedly connected to a gear ring (18); and a rotating gear (19) meshing with the gear ring (18) is rotatably connected to the gantry (3) via a direction adjustment motor (20).

5. The laser cutting machine with high-efficiency heat dissipation function according to claim 4, characterized in that: The lifting mechanism comprises a lifting drive cylinder (17) vertically fixedly mounted on a fixed ring plate (16); a bottom output shaft of the lifting drive cylinder (17) is fixedly connected to a fixed frame (6); and the lifting drive cylinder (17) is arranged in two groups and is disposed on both sides of a heat-conducting and heat-dissipating pressure ring (7).

6. The laser cutting machine with high-efficiency heat dissipation function according to claim 5, characterized in that: The heat-conducting heat-dissipating pressure ring (7) is configured as a top hollow structure, and the exterior of the heat-conducting heat-dissipating pressure ring (7) is in sliding contact with a heat-dissipating ring sleeve (21), and the heat-dissipating ring sleeve (21) is fixedly connected to a fixed ring plate (16).

7. The laser cutting machine with high-efficiency heat dissipation function according to claim 6, characterized in that: A cooling box (5) hoisted on the bottom of the operating table (1) is provided at the bottom of the heat dissipation wheel (4), and the bottom of the heat dissipation wheel (4) extends into the cooling box (5).

8. The laser cutting machine with high-efficiency heat dissipation function according to claim 7, characterized in that: A plurality of rollers (9) are rotatably connected to the side walls of the limiting strip (8).

Images