Additive manufacturing equipment and quick-release protective glass device thereof

Abstract

The utility model relates to additive manufacturing equipment and a quick-release protective glass device thereof, and the quick-release protective glass device comprises a support frame, a protective glass supporting frame, a protective glass supporting frame and a protective glass supporting frame, the floating seat is arranged on the other area of the upper end face of the supporting frame through an elastic piece, the top face of the floating seat comprises a first horizontal plane, a second horizontal plane and an inclined plane, and the first horizontal plane is higher than the second horizontal plane; the protective glass is arranged on the floating seat through a mounting frame; the pressing block is slidably arranged on the guide rail through a sliding block; and the transverse pressing type toggle clamp is installed on the sealing cover, a movable shaft of the transverse pressing type toggle clamp is connected with one end of the pressing block, so that the pressing block is driven to move on the guide rail by rotating a rotating arm of the transverse pressing type toggle clamp, and installation of the protective glass device capable of being quickly disassembled is achieved by pressing down the floating seat. According to the additive manufacturing equipment and the protective glass device capable of being disassembled quickly, the protective glass device capable of being disassembled quickly is easier and more convenient to install, debug and maintain, and therefore the utilization rate of the additive manufacturing equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of additive manufacturing, and in particular relates to additive manufacturing equipment and a quick-detachable protective mirror device thereof. Background Art

[0002] Additive manufacturing technology is an advanced manufacturing technology with distinctive features such as digital manufacturing, high flexibility and adaptability, direct CAD model drive, fast speed, and rich and diverse material types. Since it is not limited by the complexity of the part shape and does not require any tooling and molds, it has a very wide range of applications. As one of the additive manufacturing technologies, the selective laser sintering process has the following basic process: the powder feeding device delivers a certain amount of powder to the work surface, the powder spreading roller spreads a layer of powder material on the upper surface of the formed part of the forming cylinder, the heating device heats the powder to the set temperature, and the galvanometer system controls the laser to scan the solid part powder layer according to the cross-sectional profile of the layer, so that the powder melts and bonds with the formed part below; when a layer of cross section is sintered, the workbench drops a layer of thickness, and the powder spreading roller spreads a layer of uniform and dense powder on it, and scans and sinters a new layer of cross section, and after several layers of scanning and superposition, the entire prototype manufacturing is completed.

[0003] The galvanometer system is the core component of additive manufacturing equipment and is widely used in various fields. The sealing of the laser optical path is an important factor affecting the performance and reliability of the equipment. If the seal leaks, the protective wind field will fail, and gas and smoke will enter the optical path to contaminate optical components such as reflectors, thereby affecting the normal operation and service life of the equipment. For different metal powders, different scanning processes, different wind speed settings, etc., although the scanning surface is fixed, the height of the smoke generated by sintering and the large particles of laser sintering powder are different. The ability of the side suction port to carry away the smoke and the large particles of laser sintering powder is limited, causing the smoke to gather and adhere to the lower surface of the protective mirror, affecting the laser transmittance and ultimately affecting the printing quality.

[0004] In order to solve the pollution problem of the protective mirror in the prior art, the plug-in protective mirror is generally wiped regularly, or a fixed protective mirror with a purge structure is used. However, the plug-in protective mirror in the prior art relies on the gravity of the mirror seat to compress the elastic part to form a seal, which has a large friction force when plugging and unplugging, making manual operation difficult, and easily brings out dust when pulling out by friction. The purge structure under the mirror seat purge protective mirror is complicated, and the wiping space is limited and the operation is inconvenient when installed. Utility Model Content

[0005] In order to solve the above-mentioned technical problems existing in the prior art, the utility model provides a quick-detachable protective mirror device for additive manufacturing equipment. The quick-detachable protective mirror device for additive manufacturing equipment can be quickly disassembled and assembled, pressure is continuously applied to the seal in the working state, and the floating seat and the sealing gasket are separated from contact during disassembly without easily bringing out dust.

[0006] In order to solve the above technical problems, the utility model provides a quick-detachable protective lens device for additive manufacturing equipment, comprising:

[0007] A support frame, an area of ​​an upper end surface of which is provided with a guide rail;

[0008] A floating seat is arranged on another area of ​​the upper end surface of the support frame through an elastic member, the top surface of the floating seat includes a first horizontal plane, a second horizontal plane, and an inclined plane located between the first horizontal plane and the second horizontal plane, the height of the first horizontal plane is greater than the height of the second horizontal plane, and the second horizontal plane is close to the guide rail;

[0009] A protective mirror is arranged on the floating seat through a mounting frame;

[0010] A pressing block, which is slidably disposed on the guide rail via a slider;

[0011] A horizontal pressure type elbow clamp is installed on the sealing cover, and the movable shaft of the horizontal pressure type elbow clamp is connected to one end of the pressure block, so as to drive the pressure block to move on the guide rail by rotating the rotating arm of the horizontal pressure type elbow clamp. When the pressure block moves to the first horizontal plane of the floating seat, the floating seat is in a downward pressure state and its bottom surface contacts with the first sealing gasket arranged in the working chamber and compresses the first sealing gasket to realize the installation of the quick-detachable protective mirror device. When the pressure block moves to the second horizontal plane of the floating seat, the floating seat is in a floating state and its bottom surface is out of contact with the first sealing gasket to realize the pulling out of the quick-detachable protective mirror device.

[0012] As a further preferred solution of the utility model, guide followers are provided on both sides of one end of the pressing block close to the floating seat for moving on the floating seat.

[0013] As a further preferred solution of the utility model, the sealing cover comprises a cap-shaped body and a transverse plate, the transverse plate is arranged on the top of the cap-shaped body, and a second sealing gasket is arranged on the transverse plate around the cap-shaped body.

[0014] As a further preferred embodiment of the present invention, the transverse pressure type toggle clamp is installed on the transverse plate, the cap-shaped body is provided with an axial hole for the movable shaft of the transverse pressure type toggle clamp to pass through, and a third sealing gasket is provided between the axial hole and the movable shaft.

[0015] As a further preferred embodiment of the present invention, a handle is further provided on the transverse plate; and four guide shafts are provided between the floating seat and the support frame to limit the vertical upward and downward movement of the floating seat.

[0016] The utility model also provides an additive manufacturing device, comprising a working chamber, optical components, and a quick-detachable protective mirror device as described in any of the above items, wherein the quick-detachable protective mirror device is arranged between the optical components and the working chamber to protect the optical components from smoke and dust pollution in the working chamber.

[0017] As a further preferred embodiment of the present invention, the additive manufacturing equipment also includes a box body, a box cover, at least one suction port and at least one blowing port, the blowing port and the suction port are installed in the working chamber to form a protective airflow for the lenses of the optical components, the box body is installed above the working chamber through a mounting plate, the optical components are installed inside the box body, the quick-detachable protective lens device is embedded in one side of the box body and is arranged between the optical components and the working chamber, is installed on the box body through the box cover, and the sealing cover and the box body are fitted to form an independent sealed environment for the optical components.

[0018] As a further preferred embodiment of the present invention, the optical component is a galvanometer system and / or a visual detection system.

[0019] As a further preferred embodiment of the present invention, when the optical component is a galvanometer system or a visual inspection system, the galvanometer system or the visual inspection system is arranged in a box, and there is one quick-detachable protective mirror device, which is arranged between the galvanometer system and the working chamber, or between the visual inspection system and the working chamber.

[0020] As a further preferred embodiment of the present invention, when the optical components are a galvanometer system and a visual inspection system, the galvanometer system and the visual inspection system are arranged in a box, and there are two quick-detachable protective mirror devices, one of which is arranged between the galvanometer system and the working chamber, and the other is arranged between the visual inspection system and the working chamber.

[0021] The utility model discloses a quick-detachable protective mirror device for additive manufacturing equipment, which comprises: a support frame, an area of ​​the upper end surface of which is provided with a guide rail; a floating seat, which is provided on another area of ​​the upper end surface of the support frame through an elastic member, the top surface of the floating seat comprises a first horizontal plane, a second horizontal plane, and an inclined plane located between the first horizontal plane and the second horizontal plane, the height of the first horizontal plane is greater than the height of the second horizontal plane, and the second horizontal plane is close to the guide rail; a protective mirror, which is provided on the floating seat through a mounting frame; a pressure block, which is slidably provided on the guide rail through a slider; a transverse pressure type elbow clamp, which is installed on a sealing cover, and the movable shaft of the transverse pressure type elbow clamp is connected to one end of the pressure block, so as to drive the pressure block to move on the guide rail by rotating the rotating arm of the transverse pressure type elbow clamp. When the pressing block moves to the first horizontal plane of the floating seat, the floating seat is in a downward pressure state and its bottom surface contacts the first sealing gasket arranged in the working chamber and compresses the first sealing gasket to realize the installation of the quick-detachable protective mirror device. When the pressing block moves to the second horizontal plane of the floating seat, the floating seat is in an upward floating state and its bottom surface is out of contact with the first sealing gasket to realize the pulling out of the quick-detachable protective mirror device, so that the maintenance personnel can quickly remove and quickly install the quick-detachable protective mirror device outside the equipment and form an effective seal, so that the maintenance personnel can perform regular maintenance of the protective mirror outside the working chamber, thereby avoiding the disadvantage that the operator is inconvenient to install and debug in the narrow working chamber space, and reducing the probability of personnel contacting with laser and dust hazards during maintenance. Therefore, the utility model can make the installation, debugging and maintenance of the quick-detachable protective mirror device simpler, the working environment more friendly, and thus improve the utilization rate of the additive manufacturing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural axonometric view of the quick-detachable protective mirror device of the utility model;

[0023] Figure 2 This is an exploded view of the structure of the quick-detachable protective mirror device of the utility model;

[0024] Figure 3 This is a structural cross-sectional view of the quick-detachable protective lens device of the utility model;

[0025] Figure 4 A schematic diagram of the structure of an embodiment of the additive manufacturing device provided by the utility model;

[0026] Figure 5 A schematic structural diagram of another embodiment of the additive manufacturing equipment provided by the utility model.

[0027] The parts in the figure are marked as follows:

[0028] 1. working chamber, 2. air outlet, 3. mounting plate, 4. box body, 5. galvanometer system, 6. box cover, 7. first sealing gasket, 8. quick-detachable protective mirror device, 9. air inlet, 10. visual inspection system, 11. camera mounting seat, 12. camera protection box, 81. horizontal pressure type elbow clamp, 82. sealing cover, 821. cap-shaped body, 822. horizontal plate, 823. second sealing gasket, 824. butterfly screw, 825. handle, 83. floating seat, 84. third sealing gasket, 85. support frame, 86. guide rail, 87. pressure block, 871. screw, 872. guide follower, 88. protective mirror, 881. mounting frame, 89. guide shaft, 90. spring. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand and implement the technical solution of the utility model, further detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figure 1-Figure 3 The quick-detachable protective lens device of the additive manufacturing equipment shown comprises:

[0031] The support frame 85 has a guide rail 86 disposed in an area on its upper end surface; specifically, Figure 1-3 As shown, the guide rail 86 is located in the right area of ​​the support frame 85, and the left area of ​​the support frame 85 is a hollow structure, on which a floating seat 83 is provided;

[0032] The floating seat 83 is arranged on another area (such as Figure 1-3 On the left area of ​​the support frame 85 shown in the figure, the top surface of the floating seat 83 includes a first horizontal plane, a second horizontal plane, and a slope located between the first horizontal plane and the second horizontal plane, the height of the first horizontal plane is greater than the height of the second horizontal plane, and the second horizontal plane is close to the guide rail 86; specifically, the elastic member is a plurality of springs 90.

[0033] The protective mirror 88 is arranged on the floating seat 83 through the mounting frame 881, so that the light of the optical component is projected into the working chamber 1 through the protective mirror 88;

[0034] A pressing block 87 is slidably disposed on the guide rail 86 via a slider; specifically, two parallel guide rails 86 are disposed in the right area of ​​the support frame 85, and two sliders are disposed on the guide rail 86. The pressing block 87 is mounted on the slider and moves on the guide rail 86 together with the slider;

[0035] The horizontal pressure type elbow clamp 81 is installed on the sealing cover 82, and the movable shaft of the horizontal pressure type elbow clamp 81 is connected to one end of the pressure block 87 through a screw 871, so as to drive the pressure block 87 to move on the guide rail 86 by rotating the rotating arm of the horizontal pressure type elbow clamp 81. When the pressure block 87 moves to the first horizontal plane of the floating seat 83, the floating seat 83 is in a downward pressure state and its bottom surface contacts the first sealing gasket 7 arranged in the working chamber 1 and compresses the first sealing gasket 7 to realize the installation of the quick-detachable protective mirror device 8. When the pressure block 87 moves to the second horizontal plane of the floating seat 83, the floating seat 83 is in a floating state and its bottom surface is out of contact with the first sealing gasket 7 to realize the pulling out of the quick-detachable protective mirror device 8. Specifically, the horizontal pressure type elbow clamp 81 includes a horizontal pressure type elbow clamp handle, which is used to facilitate the user to rotate the rotating arm of the horizontal pressure type elbow clamp 81.

[0036] It should be noted that the horizontal pressure type toggle clamp 81 is an existing component, so the working principle of how the rotational motion of the horizontal pressure type toggle clamp handle is converted into the linear motion of the pressure block 87 is not specifically described in this application.

[0037] Preferably, in order to facilitate the movement of the pressing block 87 on the floating seat 83 , guide followers 872 are provided on both sides of one end of the pressing block 87 close to the floating seat 83 for moving on the floating seat 83 .

[0038] Preferably, in order to facilitate the installation of the horizontal pressure type toggle clamp 81, work more smoothly, and have better airtightness, the sealing cover 82 includes a cap-shaped body 821 and a horizontal plate 822, the horizontal plate 822 is arranged on the top of the cap-shaped body 821 through a butterfly screw 824, and the horizontal plate 822 is provided with a second sealing gasket 823 around the cap-shaped body 821. The horizontal pressure type toggle clamp 81 is installed on the horizontal plate 822, and the cap-shaped body 821 is provided with an axial hole for the movable shaft of the horizontal pressure type toggle clamp 81 to penetrate, and a third sealing gasket 84 is provided between the axial hole and the movable shaft. Specifically, the third sealing gasket 84 is a circular rubber pad, and a circular hole is provided in the middle for the movable shaft of the horizontal pressure type toggle clamp 81 to pass through, and its outer wall is tightly matched with the axial hole to prevent air from entering from the gap of the movable shaft. Of course, in a specific implementation, the sealing cover 82 can also be an integrally formed structure.

[0039] The horizontal plate 822 is also provided with a handle 825 to facilitate the user to move the quick-detachable protective mirror device 8. Further preferably, four guide shafts 89 are provided between the floating seat 83 and the support frame 85 to limit the floating seat 83 to move up and down in the vertical direction without deviation.

[0040] The utility model also provides an additive manufacturing device, including a working chamber 1, optical components, and a quick-detachable protective mirror device 8 as described in any of the above embodiments, wherein the quick-detachable protective mirror device 8 is arranged between the optical components and the working chamber 1, and is used to protect the optical components from smoke and dust pollution in the working chamber 1.

[0041] Specifically, the additive manufacturing equipment also includes a box body 4, a box cover 6, at least one air suction port 9 and at least one air blowing port 2, the air blowing port 2 and the air suction port 9 are installed in the working chamber 1 to form a protective airflow for the lens of the optical component, the box body 4 is installed above the working chamber 1 through the mounting plate 3, the optical component is installed inside the box body 4, the quick-detachable protective lens device 8 is embedded in one side of the box body 4, and is arranged between the optical component and the working chamber 1, and is installed on the box body 4 through the box cover 6, and the sealing cover 82 and the box body 4 are fitted to form an independent sealed environment for the optical component. The optical component is a galvanometer system 5 and / or a visual inspection system 10. In a specific implementation, the number of the air suction port 9 and the air blowing port 2 is one or more.

[0042] like Figure 4 As shown, when the optical component is a galvanometer system 5, the galvanometer system 5 or the visual inspection system 10 is disposed in the box 4, and the quick-detachable protective mirror device 8 is one, which is disposed between the galvanometer system 5 and the working chamber 1, or between the visual inspection system 10 and the working chamber 1. Specifically, the second sealing pad 823 is a square rubber pad to ensure the airtightness between the horizontal plate 822 and the box 4.

[0043] like Figure 5 As shown, when the optical components are a galvanometer system 5 and a visual inspection system 10, the galvanometer system 5 is arranged on one side of the box 4, and the visual inspection system 10 is installed on the other side of the box 4 through a camera mounting seat 11 and a camera protection box 12. There are two quick-detachable protective mirror devices 8, one of which is arranged between the galvanometer system 5 and the working chamber 1, and the other is arranged between the visual inspection system 10 and the working chamber 1.

[0044] It should be noted here that Figure 3 B in the figure is the movement direction of the pressing block 87, and C is the movement direction of the floating seat 83. Figure 4 and Figure 5 A is the wind direction.

[0045] The above embodiments are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. It should be pointed out that some modifications and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A quick-detachable protective lens device for additive manufacturing equipment, characterized in that: include: A support frame, an area of ​​an upper end surface of which is provided with a guide rail; A floating seat is arranged on another area of ​​the upper end surface of the support frame through an elastic member, the top surface of the floating seat includes a first horizontal plane, a second horizontal plane, and an inclined plane located between the first horizontal plane and the second horizontal plane, the height of the first horizontal plane is greater than the height of the second horizontal plane, and the second horizontal plane is close to the guide rail; A protective mirror is arranged on the floating seat through a mounting frame; A pressing block, which is slidably disposed on the guide rail via a slider; A horizontal pressure type elbow clamp is installed on the sealing cover, and the movable shaft of the horizontal pressure type elbow clamp is connected to one end of the pressure block, so as to drive the pressure block to move on the guide rail by rotating the rotating arm of the horizontal pressure type elbow clamp. When the pressure block moves to the first horizontal plane of the floating seat, the floating seat is in a downward pressure state and its bottom surface contacts with the first sealing gasket arranged in the working chamber and compresses the first sealing gasket to realize the installation of the quick-detachable protective mirror device. When the pressure block moves to the second horizontal plane of the floating seat, the floating seat is in a floating state and its bottom surface is out of contact with the first sealing gasket to realize the pulling out of the quick-detachable protective mirror device.

2. The quick-detachable protective lens device for additive manufacturing equipment according to claim 1, characterized in that: Guide followers are provided on both sides of one end of the pressing block close to the floating seat for moving on the floating seat.

3. The quick-detachable protective lens device for additive manufacturing equipment according to claim 1, characterized in that: The sealing cover comprises a cap-shaped body and a transverse plate, wherein the transverse plate is arranged on the top of the cap-shaped body, and a second sealing gasket is arranged on the transverse plate around the cap-shaped body.

4. The quick-detachable protective lens device for additive manufacturing equipment according to claim 3, characterized in that: The transverse pressure type toggle clamp is installed on the transverse plate, and the cap-shaped body is provided with an axial hole for the movable shaft of the transverse pressure type toggle clamp to penetrate therein, and a third sealing gasket is provided between the axial hole and the movable shaft.

5. The quick-detachable protective lens device for additive manufacturing equipment according to claim 3, characterized in that: A handle is also provided on the transverse plate; and four guide shafts are provided between the floating seat and the support frame to limit the floating seat from moving up and down in the vertical direction.

6. An additive manufacturing device, characterized in that: It comprises a working chamber, an optical component, and a quick-detachable protective mirror device as described in any one of claims 1 to 5, wherein the quick-detachable protective mirror device is arranged between the optical component and the working chamber to protect the optical component from being polluted by smoke and dust in the working chamber.

7. The additive manufacturing device according to claim 6, characterized in that: The additive manufacturing equipment also includes a box body, a box cover, at least one suction port and at least one blowing port, the blowing port and the suction port are installed in the working chamber to form a protective airflow for the lenses of the optical components, the box body is installed above the working chamber through a mounting plate, the optical components are installed inside the box body, the quick-detachable protective lens device is embedded in one side of the box body and is arranged between the optical components and the working chamber, is installed on the box body through the box cover, and the sealing cover and the box body are fitted to form an independent sealed environment for the optical components.

8. The additive manufacturing device according to claim 7, characterized in that: The optical component is a galvanometer system and / or a visual detection system.

9. The additive manufacturing device according to any one of claims 6 to 8, characterized in that: When the optical component is a galvanometer system or a visual inspection system, the galvanometer system or the visual inspection system is arranged in a box, and there is one quick-detachable protective mirror device, which is arranged between the galvanometer system and the working chamber, or between the visual inspection system and the working chamber.

10. The additive manufacturing device according to any one of claims 6 to 8, characterized in that: When the optical components are a galvanometer system and a visual inspection system, the galvanometer system and the visual inspection system are arranged in a box, and there are two quick-detachable protective mirror devices, one of which is arranged between the galvanometer system and the working chamber, and the other is arranged between the visual inspection system and the working chamber.

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