Cooling device of laser galvanometer and metal powder 3D printing equipment

Abstract

The utility model discloses a laser galvanometer cooling device and metal powder 3D printing equipment, which comprises a printing forming bin, a base mounted at the top of the printing forming bin and a plurality of laser galvanometers, a plurality of mounting holes are arranged in the base, and the laser galvanometers are mounted in the mounting holes. A plurality of first cooling channels are arranged around the periphery, corresponding to the laser galvanometer, in the base and are arranged side by side in the vertical direction, and the two ends of each first cooling channel are provided with a first water inlet and a first water outlet respectively. The first water inlet is connected with a water source, so that water flow enters the first cooling channel to absorb a large amount of heat on the periphery of the laser galvanometer and the base and finally flows out of the first water outlet to take away the heat, the purpose of efficiently cooling the laser galvanometer is achieved, precision reduction caused by high temperature influence on the laser galvanometer is avoided, product pattern distortion is prevented, and product quality is improved. And the printing quality of products is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal powder 3D printing equipment technical field, concretely relates to a cooling device of laser galvanometer and metal powder 3D printing equipment. BACKGROUND

[0002] The existing laser selective metal powder 3D printing equipment is provided with laser galvanometer on the forming bin, and the laser is reflected into the forming bin through the swing of the motor-driven laser galvanometer to carry out laser sintering on the metal powder, so that the 3D printing forming of the product is realized, but the laser galvanometer generates a large amount of heat in the working process, and the precision is reduced due to the influence of temperature, and the product pattern is distorted, which affects the printing quality of the product. SUMMARY

[0003] The utility model aims at providing a cooling device of laser galvanometer to solve the above-mentioned technical problem.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a cooling device of laser galvanometer, comprising a printing forming bin, a base installed on the top of the printing forming bin and a plurality of laser galvanometers, a plurality of mounting holes are arranged in the base, the laser galvanometers are installed in the mounting holes, a plurality of first cooling channels are arranged around the periphery of the base corresponding to the laser galvanometers, and the first cooling channels are arranged side by side in the up-down direction, and the two ends of the first cooling channel are respectively a first water inlet and a first water outlet.

[0005] Preferably, the laser galvanometer is two, the cross section of the base is rectangular, the length direction of the base is the left-right direction, the mounting hole is two, the two mounting holes are arranged on the left and right sides of the base respectively, the laser galvanometer is vertically installed in the mounting hole one by one, the first cooling channel is U-shaped, and the openings of the cooling channels on the left and right sides are arranged to face away from each other, and the first water inlet and the first water outlet of the first cooling channel are respectively located at the front and rear ends of the base.

[0006] Preferably, the laser galvanometer is four, the cross section of the base is square, the mounting hole is four, the four mounting holes are arranged on the base in matrix, the laser galvanometer is vertically installed in the mounting hole one by one, and the first cooling channel is L-shaped.

[0007] Preferably, it further includes a front seat vertically arranged on the front side of the laser galvanometer, the front seat is located above the base, a collimator connected with the laser galvanometer is installed on the front seat, a QBH collimator is installed on the collimator, second cooling channels are respectively arranged in the front seat, the collimator and the QBH collimator, and the two ends of the second cooling channel are respectively a second water inlet and a second water outlet.

[0008] Preferably, a water distribution platform is mounted on one side of the top of the printing forming bin, a water inlet valve and a water outlet valve are mounted on the water distribution platform, a water inlet pipe is connected between the first water inlet of the first cooling channel and the water inlet valve, a water inlet pipe is connected between the second water inlet of the second cooling channel and the water inlet valve, a water outlet pipe is connected between the first water outlet of the first cooling channel and the water outlet valve, and a water outlet pipe is connected between the second water outlet of the second cooling channel and the water outlet valve.

[0009] The utility model discloses still provide a kind of metal powder 3D printing equipment, including the cooling device of laser galvanometer of any one described above.

[0010] The utility model has the following beneficial effects:

[0011] The utility model discloses a plurality of first cooling channels are arranged around the periphery of the laser galvanometer in the base, and the first cooling channels are arranged side by side in the up-down direction, the two ends of the first cooling channel are respectively a first water inlet and a first water outlet, the first water inlet is connected to a water source, so that the water flow enters the first cooling channel to absorb a large amount of heat of the periphery of the laser galvanometer and the base, and finally flows out from the first water outlet to carry away, so as to achieve the purpose of efficient cooling of the laser galvanometer, avoid the precision decline caused by the influence of high temperature on the laser galvanometer, and further prevent the product pattern from being distorted to ensure the printing quality of the product. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure diagram of the cooling device of the laser galvanometer of the embodiment 1 of the utility model.

[0013] Figure 2 It is the perspective view of the base of the embodiment 1 of the utility model.

[0014] Figure 3 It is the top view of the base of the embodiment 1 of the utility model.

[0015] Figure 4 It is the front view of the base of the embodiment 1 of the utility model.

[0016] Figure 5 It is Figure 4 The sectional view at A-A.

[0017] Figure 6 It is the perspective view of the base of the embodiment 2 of the utility model.

[0018] Figure 7 It is the sectional view of the base of the embodiment 2 of the utility model.

[0019] Label: 1 print forming bin, 2 laser galvanometer, 3 base, 4 mounting hole, 5 first cooling channel, 51 first water inlet 52 first water outlet, 6 front seat, 7 second cooling channel, 71 second water inlet, 72 second water outlet, 8 water distribution rack, 9 water inlet valve, 10 water outlet valve, 11 water inlet pipe, 12 water outlet pipe, 13 collimator, 14 QBH collimator. DETAILED DESCRIPTION

[0020] To further illustrate the embodiments, the utility model provides the attached drawings. These drawings are part of the utility model disclosure, which mainly serves to illustrate the embodiments, and can be combined with the relevant description of the specification to explain the operating principle of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementations and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0021] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Example 1.

[0024] Reference Figures 1-5As shown, as an embodiment of the utility model provides a kind of cooling device of laser galvanometer, including printing forming bin 1, the base 3 of the top of printing forming bin 1 and multiple laser galvanometers 2, multiple mounting holes 4 are provided in base 3, laser galvanometer 2 is installed in mounting hole 4, multiple first cooling channels 5 are peripherally provided in base 3 corresponding to laser galvanometer 2, and multiple first cooling channels 5 are arranged side by side along up-down direction, the two ends of first cooling channel 5 are first water inlet 51 and first water outlet 52 respectively, first water inlet 51 is connected to water source, so that water flow enters into first cooling channel 5 and absorbs the large amount of heat of the periphery of laser galvanometer 2 and base 3, finally flows out from first water outlet 52 and is taken away, to reach the purpose of high-efficiency cooling of laser galvanometer 2, avoid the precision of laser galvanometer 2 to be reduced due to high temperature, to prevent product pattern distortion, guarantee the printing quality of product.

[0025] Specifically, laser galvanometer 2 is two, the cross section of base 3 is rectangular, the length direction of base 3 is left-right direction, mounting hole 4 is two, two mounting holes 4 are respectively arranged on the left and right sides of base 3, laser galvanometer 2 is vertically installed in mounting hole 4 one by one, first cooling channel 5 is U-shaped, and the openings of the cooling channels on the left and right sides are set to be mutually away, first water inlet 51 and first water outlet 52 of first cooling channel 5 are respectively located at the front and back ends of base 3, which makes the processing of first cooling channel 5 easier, while ensuring the support structure strength of base 3, and making the surrounding path of first cooling channel 5 longer, heat exchange more sufficient, and cooling effect better.

[0026] In the embodiment, it also includes front seat 6 vertically arranged on the front side of laser galvanometer 2, front seat 6 is located above base 3, collimator 13 connected with laser galvanometer 2 is installed on front seat 6, QBH collimator 14 is installed on collimator 13, second cooling channel 7 is respectively arranged in front seat 6, collimator 13 and QBH collimator 14, the two ends of second cooling channel 7 are second water inlet 71 and second water outlet 72 respectively, second water inlet 71 is connected to water source, so that water flow enters into second cooling channel 7 and absorbs the large amount of heat in front seat 6, collimator 13 and QBH collimator 14, finally flows out from second water outlet 72 and is taken away, further improve the cooling effect of laser galvanometer 2 and surrounding components.

[0027] In the embodiment, the top side of the printing forming bin 1 is provided with a water distribution rack 8, the water distribution rack 8 is provided with a water inlet valve 9 and a water outlet valve 10, the first water inlet 51 of the first cooling channel 5 and the second water inlet 71 of the second cooling channel 7 are respectively connected with the water inlet valve 9 through water inlet pipes 11, and the first water outlet 52 of the first cooling channel 5 and the second water outlet 72 of the second cooling channel 7 are respectively connected with the water outlet valve 10 through water outlet pipes 12, so that the plurality of water inlet pipes 11 and water outlet pipes 12 can be uniformly collected and managed and controlled, space is saved, the water conveying process is more stable and reliable, and the cooling stability is ensured.

[0028] The utility model further provides a kind of metal powder 3D printing equipment, including the cooling device of laser galvanometer of any one described above, by setting multiple first cooling channel 5 and second cooling channel 7 in the periphery of laser galvanometer 2, to reach the purpose of high-efficiency cooling of laser galvanometer 2, avoid laser galvanometer 2 to be influenced by high temperature and lead to precision drop, to prevent product pattern distortion, ensure the printing quality of product.

[0029] Embodiment 2, for brief, this embodiment mainly describes the difference from embodiment 1.

[0030] Refer to Figure 6 With 7 As shown in the drawings, as an embodiment of the utility model, a kind of cooling device of laser galvanometer 2 is provided, laser galvanometer 2 is four, the cross section of base 3 is square, mounting hole 4 is four, four mounting hole 4 is arranged on base 3 in matrix, laser galvanometer 2 is vertically installed in mounting hole 4 one by one, first cooling channel 5 is L-shaped, i.e. cross gap is formed between four first cooling channel 5, this setting makes the machining of first cooling channel 5 more easily, while guaranteeing the support structure strength of base 3, while making the first cooling channel 5 surrounding path longer, heat exchange is more sufficient, cooling effect is better, to ensure the printing quality of product.

Claims

1. A cooling device for a laser galvanometer, characterized in that: The cooling device comprises a printing forming bin, a base mounted on the top of the printing forming bin, and a plurality of laser galvanometers, a plurality of mounting holes are arranged in the base, the laser galvanometers are mounted in the mounting holes, a plurality of first cooling channels are arranged around the periphery of the base corresponding to the laser galvanometers, and the first cooling channels are arranged side by side in the up-down direction, and the two ends of the first cooling channel are respectively a first water inlet and a first water outlet.

2. Cooling arrangement for a laser galvanometer according to claim 1, characterized in that: The laser galvanometers are two, the cross section of the base is rectangular, the length direction of the base is the left-right direction, the mounting holes are two, the two mounting holes are arranged on the left and right sides of the base, the laser galvanometers are vertically installed in the mounting holes one by one, the first cooling channel is U-shaped, and the openings of the cooling channels on the left and right sides are arranged to face away from each other, and the first water inlet and the first water outlet of the first cooling channel are respectively located at the front and rear ends of the base.

3. The cooling arrangement for a laser galvanometer according to claim 1, characterized in that: The laser galvanometers are four, the cross section of the base is square, the mounting holes are four, the four mounting holes are arranged in a matrix on the base, the laser galvanometers are vertically installed in the mounting holes one by one, and the first cooling channel is L-shaped.

4. The cooling arrangement for a laser galvanometer according to claim 1, characterized in that: The cooling device further comprises a front seat vertically arranged on the front side of the laser galvanometer, the front seat is located above the base, a collimator connected with the laser galvanometer is mounted on the front seat, a QBH collimator is mounted on the collimator, and a second cooling channel is arranged in the front seat, the collimator and the QBH collimator, respectively, and the two ends of the second cooling channel are respectively a second water inlet and a second water outlet.

5. The cooling arrangement for a laser galvanometer according to claim 4, characterized in that: A water distribution rack is mounted on one side of the top of the printing forming bin, a water inlet valve and a water outlet valve are mounted on the water distribution rack, a water inlet pipe is connected between the first water inlet of the first cooling channel and the water inlet valve, and a water inlet pipe is connected between the second water inlet of the second cooling channel and the water inlet valve, a water outlet pipe is connected between the first water outlet of the first cooling channel and the water outlet valve, and a water outlet pipe is connected between the second water outlet of the second cooling channel and the water outlet valve.

6. A metal powder 3D printing apparatus, characterized by: The cooling device comprises the laser galvanometer of any one of claims 1-5.

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