Radiating device for reflecting mirror of laser folding tube

Abstract

The utility model relates to a laser folding tube reflecting mirror heat dissipation device which comprises a first laser folding tube, a second laser folding tube, a fixing device and a cooling device, and the first laser folding tube and the second laser folding tube are both fixedly installed on the top of the fixing device. The left end of the first laser folding tube and the left end of the second laser folding tube are fixedly provided with laser reflectors, the right side of the cooling device is provided with an open structure, and the left ends of the first laser folding tube and the second laser folding tube are sleeved with the cooling device. The cooling device comprises an integrally-formed rectangular shell part, a first chamfering protruding part located at the left front end of the rectangular shell part and a second chamfering protruding part located at the left rear end of the rectangular shell part, and cooling water path loop holes of the same structure are formed in the top of the first chamfering protruding part and the top of the second chamfering protruding part correspondingly. Cooling water can flow in the cooling water path loop hole in the constant direction, and the effect of cooling the shape follow-up chamfer face of the inner wall of the rectangular part of the cooling device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser tube cooling devices, in particular to a laser folding tube reflector heat dissipation device. Background Art

[0002] CO2 laser tubes have enormous market potential, with demand growing exponentially annually in recent years. They are widely used in various industries for laser processing of metal and non-metal materials, including cutting, drilling, engraving, marking, quenching, cladding, and welding. Currently, there are two types of medium- and high-power laser tubes on the market: radio frequency (RF) lasers (metal tubes) and axial fast-flow lasers. Metal tubes can meet the market's precision requirements for laser processing, but they are expensive and technically complex. Currently, there are no large-scale industrialized products in China, and they rely heavily on imports, making them difficult to promote on a large scale in China and other developing countries. This is especially true for medium- and high-power metal tubes, which are only produced by a handful of companies in developed countries, and their prices are prohibitively high. Axial fast-flow lasers are mature internationally, with a certain scale of production in China. However, due to their production processes, technical routes, and component costs, they only achieve a competitive price-performance ratio at higher powers. Domestically, low-cost DC laser tubes (glass tubes) are only capable of low power due to technical and process limitations, far from meeting market demand.

[0003] Currently, a Chinese patent with authorization announcement number CN102544987B discloses a plane-folded vertical beam-combining laser tube, comprising a gas storage tube, a gas return tube, a thin film polarizer, a reflective lens, and at least four tube assemblies. Each tube assembly is connected to the gas storage tube via a gas return tube. The at least two tube assemblies are arranged side by side in a first plane, and at least two tube assemblies are arranged side by side in a second plane perpendicular to the first plane. Adjacent tube assemblies in the first plane are connected by a folding lens to form a first S-shaped tube. Adjacent tube assemblies in the second plane are connected by a folding lens to form a second S-shaped tube. The advantages of the present invention are as follows: two strong laser beams with the same light output direction and opposite polarization directions generated in two perpendicular planes are combined into a high-power laser beam with good circular polarization after passing through a thin film polarizer and a reflective lens. The laser beam has high power, good spot quality, and is fine after focusing. The laser processing speed is fast, the effect is good, and the production cost is relatively low.

[0004] The above-mentioned prior art solution has the following drawbacks: during use, the reflector may become misaligned due to thermal expansion and contraction as the use time increases or decreases, so it is urgent to add a cooling device to the reflector. Utility Model Content

[0005] The purpose of the utility model is to provide a laser folding tube reflector heat dissipation device to solve the problems existing in the above-mentioned prior art.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A laser folding tube reflector heat dissipation device includes a first laser folding tube, a second laser folding tube, a fixing device and a cooling device, wherein the first laser folding tube and the second laser folding tube are both fixedly mounted on the top of the fixing device, and the first laser folding tube and the second laser folding tube are parallel to each other, the first laser folding tube is arranged at intervals on one side of the second laser folding tube, the left end of the first laser folding tube and the left end of the second laser folding tube are both fixedly mounted with laser reflectors, an open structure is provided on the right side of the cooling device, and the cooling device is sleeved on the left ends of the first laser folding tube and the second laser folding tube.

[0008] In a further embodiment, the cooling device includes an integrally formed rectangular shell portion, a first chamfered protrusion located at the left front end of the rectangular shell portion, and a second chamfered protrusion located at the left rear end of the rectangular shell portion, the left ends of the first chamfered protrusion and the second chamfered protrusion both have protrusions extending beyond the left end surface of the rectangular shell, the left front corner of the inner wall of the rectangular shell and the left rear corner of the inner wall of the rectangular shell are both set as conformal chamfered surfaces corresponding to the first chamfered protrusion and the second chamfered protrusion, the tops of the first chamfered protrusion and the second chamfered protrusion are both A cooling water circuit hole with consistent structure is provided, and a water inlet hole and a water outlet hole are provided at the bottom of the cooling water circuit hole, which pass through the first chamfered protrusion / the second chamfered protrusion up and down, and the axes of the water inlet hole and the water outlet hole are parallel to each other. A vertically placed baffle is provided at the inner top of the cooling water circuit hole, and the baffle is used to separate the inner bottom end of the cooling water circuit hole into two chambers that are not connected to each other. A piston is inserted at the inner top end of the cooling water circuit hole, and there is a gap between the bottom end surface of the piston and the top end surface of the baffle.

[0009] By adopting the above technical solution, the cooling water can flow in a constant direction inside the cooling water loop hole, thereby achieving the effect of cooling the conformal chamfered surface of the inner wall of the rectangular portion of the cooling device.

[0010] In a further embodiment, the right end of the rectangular portion of the cooling device is configured as a completely open open structure, and a clamping plate for clamping the first laser folding tube and the second laser folding tube is inserted inside the right end of the rectangular portion, and the clamping plate is provided with sockets corresponding to the first laser folding tube and the second laser folding tube, and the sockets are gap-matched with the first laser folding tube and the second laser folding tube, and the gap between the sockets and the first laser folding tube and the second laser folding tube is filled with buffer fixing glue.

[0011] In a further embodiment, the piston is interference fit with the inner top end of the cooling water circuit hole.

[0012] In a further embodiment, the conformal chamfered surface of the inner wall of the rectangular portion of the cooling device is fitted with the left side surface of the reflector of the first laser folding tube / the second laser folding tube.

[0013] In a further embodiment, the periphery of the cooling device is provided with an acute-angled blunt shape.

[0014] In summary, the present invention has the following beneficial effects:

[0015] 1. The left front corner of the inner wall of the through-shaped shell and the left rear corner of the inner wall of the rectangular shell are both set to conformal chamfered surfaces corresponding to the first chamfered protrusion and the second chamfered protrusion, the bottom of the cooling water loop hole is provided with a water inlet hole and a water outlet hole that pass through the first chamfered protrusion / the second chamfered protrusion up and down, and a baffle is provided to separate the inner bottom end of the cooling water loop hole into two chambers that are not connected to each other, so that the cooling water can flow in a constant direction inside the cooling water loop hole, thereby cooling the conformal chamfered surface of the inner wall of the rectangular part of the cooling device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a structural schematic diagram for reflecting the internal structure of the cooling water loop hole of the utility model.

[0018] In the figure, 1, first laser folding tube; 2, second laser folding tube; 3, fixing device; 4, cooling device; 41, rectangular shell part; 42, first chamfered protrusion; 43, second chamfered protrusion. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings.

[0020] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1In the description, the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from a particular component geometry, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this specification, "plurality" means two or more, unless otherwise specifically defined in terms of the center's direction.

[0021] Example 1:

[0022] like Figure 1-Figure 2As shown, a laser folding tube reflector heat dissipation device includes a first laser folding tube 1, a second laser folding tube 2, a fixing device 3 and a cooling device 4. The first laser folding tube 1 and the second laser folding tube 2 are fixedly installed on the top of the fixing device 3, and the first laser folding tube 1 and the second laser folding tube 2 are parallel to each other. The first laser folding tube 1 is arranged on one side of the second laser folding tube 2 at intervals. The left end of the first laser folding tube 1 and the left end of the second laser folding tube 2 are both fixedly installed with a laser reflector. An open structure is provided on the right side of the cooling device 4. The cooling device 4 is sleeved on the left ends of the first laser folding tube 1 and the second laser folding tube 2. The cooling device 4 includes an integrally formed rectangular shell portion 41, a first chamfered protrusion 42 located at the left front end of the rectangular shell portion 41, and a second chamfered protrusion 43 located at the left rear end of the rectangular shell portion 41. The left ends of the first chamfered protrusion 42 and the second chamfered protrusion 43 both have protrusions extending beyond the left end face of the rectangular shell. The left front corner of the inner wall of the rectangular shell and the left rear corner of the inner wall of the rectangular shell are both set to conformal chamfered surfaces corresponding to the first chamfered protrusion 42 and the second chamfered protrusion 43. The conformal chamfered surface of the inner wall of the rectangular portion of the cooling device 4 is in contact with the left side face of the reflector of the first laser folding tube 1 / the second laser folding tube 2. The tops of the first chamfered protrusion 42 and the second chamfered protrusion 43 are both provided with cooling water loop holes with the same structure. The bottom of the cooling water loop hole is provided with a water inlet hole and a water outlet hole that pass through the first chamfered protrusion 42 / the second chamfered protrusion 43 up and down, and the axes of the water inlet hole and the water outlet hole are parallel to each other. The inner top of the cooling water loop hole is provided with a vertically placed baffle, which is used to separate the inner bottom end of the cooling water loop hole into two chambers that are not connected to each other. A piston is inserted into the inner top of the cooling water loop hole, and there is a gap between the bottom end surface of the piston and the top surface of the baffle. The piston is interference fit with the inner top of the cooling water loop hole. The right end of the rectangular part of the cooling device 4 is set to a completely open open structure, and a clamping plate for clamping the first laser folding tube 1 and the second laser folding tube 2 is inserted inside the right end of the rectangular part. The clamping plate is provided with sockets corresponding to the first laser folding tube 1 and the second laser folding tube 2, and the sockets are gap-matched with the first laser folding tube 1 and the second laser folding tube 2. The gap between the sockets and the first laser folding tube 1 and the second laser folding tube 2 is filled with buffering fixing glue, and the periphery of the cooling device 4 is provided with an acute-angled blunt shape. The acute-angled blunt shape is to remove burrs during the processing process and avoid scratching the operator during installation and use.

[0023] Implementation process: When in use, the cooling water enters the cooling water loop hole from the water inlet hole at the bottom end of the cooling water loop hole, and is then blocked by the baffle and continues to flow from bottom to top in the cooling water loop hole. When the cooling water flows to the inner top end of the cooling water loop hole, it is blocked and changed direction by the bottom end face of the piston, and enters the other side of the cooling water loop hole from the position between the baffle and the piston, and then flows from top to bottom to the water outlet hole, thereby realizing the cooling water circulation in the cooling water loop hole. In this way, the heat on the conformal chamfered surface can be greatly taken away. Because the reflector is in contact with the conformal chamfered surface, the cooling water is actually cooling the reflector, thereby providing a relatively constant temperature environment for the reflector to work.

[0024] In the embodiments disclosed in this utility model, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments disclosed in this utility model based on specific circumstances.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A laser folding tube reflector heat dissipation device, comprising a first laser folding tube (1), a second laser folding tube (2), a fixing device (3) and a cooling device (4), characterized in that: The first laser folding tube (1) and the second laser folding tube (2) are both fixedly mounted on the top of the fixing device (3), and the first laser folding tube (1) and the second laser folding tube (2) are parallel to each other. The first laser folding tube (1) is arranged at intervals on one side of the second laser folding tube (2). The left ends of the first laser folding tube (1) and the second laser folding tube (2) are both fixedly mounted with laser reflectors. An open structure is provided on the right side of the cooling device (4), and the cooling device (4) is sleeved on the left ends of the first laser folding tube (1) and the second laser folding tube (2).

2. The laser folding tube reflector heat dissipation device according to claim 1, characterized in that: The cooling device (4) comprises an integrally formed rectangular shell portion (41), a first chamfered protrusion (42) located at the left front end of the rectangular shell portion (41), and a second chamfered protrusion (43) located at the left rear end of the rectangular shell portion (41), the left ends of the first chamfered protrusion (42) and the second chamfered protrusion (43) both have protrusions extending beyond the left end face of the rectangular shell, the left front corner of the inner wall of the rectangular shell and the left rear corner of the inner wall of the rectangular shell are both configured as conformal chamfered surfaces corresponding to the first chamfered protrusion (42) and the second chamfered protrusion (43), the first chamfered protrusion (42) and the second chamfered protrusion (43) are The tops of the two chamfered protrusions (43) are both provided with cooling water loop holes with the same structure, and the bottom of the cooling water loop hole is provided with a water inlet hole and a water outlet hole that pass through the first chamfered protrusion (42) / the second chamfered protrusion (43) from top to bottom, and the axes of the water inlet hole and the water outlet hole are parallel to each other. The inner top of the cooling water loop hole is provided with a vertically placed baffle, and the baffle is used to separate the inner bottom end of the cooling water loop hole into two chambers that are not connected to each other. The inner top end of the cooling water loop hole is inserted with a piston, and there is a gap between the bottom end surface of the piston and the top end surface of the baffle.

3. The laser folding tube reflector heat dissipation device according to claim 2, characterized in that: The right end of the rectangular portion of the cooling device (4) is configured as a completely open structure, and a clamping plate for clamping the first laser folding tube (1) and the second laser folding tube (2) is inserted into the right end of the rectangular portion. The clamping plate is provided with jacks corresponding to the first laser folding tube (1) and the second laser folding tube (2), and the jacks are clearance-matched with the first laser folding tube (1) and the second laser folding tube (2). The clearance between the jacks and the first laser folding tube (1) and the second laser folding tube (2) is filled with a buffer fixing glue.

4. The laser folding tube reflector heat dissipation device according to claim 2, characterized in that: The piston is interference fit with the inner top end of the cooling water circuit hole.

5. The laser folding tube reflector heat dissipation device according to claim 2, characterized in that: The conformal chamfered surface of the inner wall of the rectangular portion of the cooling device (4) is fitted to the left side of the reflector of the first laser folding tube (1) / the second laser folding tube (2).

6. The laser folding tube reflector heat dissipation device according to claim 1, characterized in that: The periphery of the cooling device (4) is provided with an acute-angled blunt shape.

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