Vacuum welding device

Abstract

The utility model relates to a kind of vacuum welding devices, including pedestal, and vacuum chamber fixed on pedestal, and welding mechanism fixed to pedestal, vacuum chamber includes chamber main body fixed on pedestal in midair, and the load plate that is driven along vertical direction relative chamber main body movement by driving mechanism, load plate and chamber main body form closed chamber after being closed, vacuum interface is equipped in chamber main body or load plate with closed chamber communication, vacuum welding device further includes elastic mechanism, at least part of elastic mechanism is connected with load plate, and remaining part is connected with driving mechanism.Advantages are that when driving mechanism pushes load plate to close, elastic mechanism pre-compression deformation provides flexible buffer, eliminates the damage of rigid impact to sealing structure;During vacuum adsorption and welding process, elastic mechanism continuously provides self-adapting compensation force, simultaneously, elastic mechanism can effectively absorb equipment vibration, avoid the instantaneous leakage caused by high-frequency micro-amplitude separation.

Description

Technical Field

[0001] This utility model belongs to the field of temperature equalization plate processing equipment, and particularly relates to a vacuum welding device. Background Technology

[0002] In the existing technology, when the processing chamber body and the material plate of the vacuum welding device are sealed, due to the lack of elastic buffer and compensation, when there are processing errors, assembly deviations or slight deformations on the sealing surface of the chamber body or the material plate, local gaps are easily generated between the two, which significantly increases the risk of vacuum leakage. At the same time, the vibration during equipment operation will be directly transmitted to the sealing surface, and the rigid contact structure cannot effectively compensate for the deformation, causing the sealing pressure to fluctuate or fail. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems by providing a vacuum welding device that can solve the technical issues described above.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A vacuum welding apparatus includes a base, a vacuum chamber fixed to the base, and a welding mechanism fixed to the base with its output end pointing towards the vacuum chamber. The vacuum chamber includes a chamber body suspended and fixed to the base by a plurality of first guide rods, and a material carrier plate driven by a driving mechanism to move axially relative to the chamber body along the first guide rods. After the material carrier plate and the chamber body are closed, a closed chamber is formed inside. A vacuum interface communicating with the closed chamber is provided on the chamber body or the material carrier plate. The vacuum welding apparatus also includes an elastic mechanism, at least a portion of which is connected to the material carrier plate, and the remaining portion of which is connected to the driving mechanism.

[0006] Furthermore, the elastic mechanism includes a plurality of springs, one end of which is fixed to the carrier plate and the other end of which is fixed to the drive mechanism.

[0007] Furthermore, the elastic mechanism also includes a second guide hole and a second guide rod inserted into the second guide hole. Either the guide hole or the second guide rod is located on the material carrier plate, and the other is located on the drive mechanism.

[0008] Furthermore, the free end of the second guide rod is provided with a stop member, the radial dimension of which is larger than the diameter of the second guide hole.

[0009] Furthermore, a sealing structure is provided on the contact surface of the chamber body and / or the material carrier plate.

[0010] Furthermore, the chamber body is provided with a vacuum interface on its side, and the vacuum interface is connected to the interior of the chamber body, so that the interior of the chamber body is connected to an external vacuum pumping device.

[0011] Furthermore, the welding mechanism is a laser welding device, and the output end of the welding mechanism points towards the interior of the cavity body through a welding window provided on the cavity body.

[0012] Furthermore, the driving mechanism includes a driving member fixed to the base, and a driving plate that moves axially along the first guide rod is connected to the output end of the driving member.

[0013] Furthermore, the drive plate is provided with a first guide hole that is sleeved on the first guide rod, and the first guide hole is seamlessly slidably connected to the first guide rod.

[0014] Furthermore, the driving component is either a lead screw drive or a cylinder drive.

[0015] Compared with existing technologies, the advantages of this application are as follows: when the drive mechanism pushes the material plate to close, the elastic mechanism provides flexible buffer through pre-compression deformation, eliminating the damage of rigid impact to the sealing structure; during vacuum adsorption and welding, the elastic mechanism continuously provides adaptive compensation force, and at the same time, the elastic mechanism can effectively absorb equipment vibration and avoid instantaneous leakage caused by high-frequency micro-separation. Attached Figure Description

[0016] Figure 1 A front view of the finished vacuum welding device assembly of this utility model;

[0017] Figure 2 for Figure 1 Enlarged detail view of key components in area A;

[0018] Figure 3 A front view of the assembled vacuum welding device of this utility model;

[0019] Figure 4 A top view of the assembled vacuum welding device of this utility model;

[0020] Figure 5 for Figure 4 Schematic diagram of the CC section;

[0021] Figure 6 for Figure 5 Enlarged view of the main components in area B.

[0022] In the figure, there are: base 1, vacuum chamber 2, chamber body 21, material carrier plate 22, vacuum interface 23, welding window 24, welding mechanism 3, first guide rod 41, first guide hole 42, driving mechanism 5, driving component 51, driving plate 52, elastic mechanism 6, second guide rod 61, second guide hole 62, stop component 63, spring 64, and sealing structure 7. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning. Example 1

[0027] like Figures 1-2As shown, the vacuum welding apparatus includes a base 1 for supporting the operation of various mechanisms, a vacuum chamber 2 fixed on the base 1, and a welding mechanism 3 fixed on the base 1 with its output end pointing towards the vacuum chamber 2. In this embodiment, the part to be processed is placed in the vacuum chamber 2, and then the welding mechanism 3 is used to process the part to be processed.

[0028] Specifically, the aforementioned vacuum chamber 2 includes a chamber body 21 suspended and fixed on the base 1 by a plurality of first guide rods 41, and a material carrier plate 22 driven by a driving mechanism 5 to move axially relative to the chamber body 21 along the first guide rods 41. After the material carrier plate 22 and the chamber body 21 are closed, a closed chamber is formed inside. A connection, such as a..., is provided on the chamber body 21 or the material carrier plate 22 to communicate with the closed chamber. Figure 3 The vacuum interface 23 shown is located on the relatively stationary chamber body 21 in this embodiment. Furthermore, the vacuum interface 23 is connected to the interior of the chamber body 21 and is connected to an external vacuum pump group to remove the gas in the sealed chamber to a preset vacuum level. The vacuum welding device also includes an elastic mechanism 6, at least a part of which is connected to the material plate 22 and the remaining part is connected to the drive mechanism 5. The elastic mechanism provides flexible buffering and pressure equalization compensation when the material plate 22 moves toward the chamber body 21 and closes, ensuring that the sealing surface of the material plate 22 and the chamber body 21 are evenly attached.

[0029] Specifically, when the drive mechanism 5 pushes the material plate 22 to rise axially along the first guide rod 41, the elastic mechanism 6 is pre-compressed; after the material plate 22 contacts the chamber body 21, the drive mechanism 5 continues to apply closing force. At this time, the deformation of the elastic mechanism 6 increases, and its elastic deformation absorbs the mechanism error and the unevenness of the sealing surface, so that the closed chamber maintains a stable seal during the vacuum adsorption process.

[0030] like Figures 5-6 As shown, the aforementioned elastic mechanism 6 includes several springs 64, one end of which is fixed to the material carrier plate 22, and the other end of which is fixed to the drive mechanism 5. The elastic mechanism 6 also includes a second guide hole 62 and a second guide rod 61 inserted into the second guide hole 62. Either the second guide hole 62 or the second guide rod 61 is located on the material carrier plate 22, and the remaining one is located on the drive mechanism 5. Figure 6 As shown, a stop member 63 is also provided at the free end of the second guide rod 61. The radial dimension of the stop member 63 is larger than the diameter of the second guide hole 62, thereby forming an axial movement hard limit structure.

[0031] When the drive mechanism 5 moves the material plate 22 away from the chamber body 21, the stop member 63 contacts the end face of the second guide hole 62, limiting the maximum retraction stroke of the material plate 22 and preventing the spring 64 from being overstretched and failing; when the material plate 22 is closed, the pre-compression force of the spring 64 ensures the initial compression of the sealing surface.

[0032] As an alternative, the aforementioned elastic mechanism 6 can also be replaced with a support device that has deformation and a rebound effect, such as a rubber column.

[0033] To further optimize the sealing effect of the vacuum chamber 2, a sealing structure 7 is also provided on the chamber body 21 and / or the material carrier plate 22. The sealing structure 7 is located on the contact surface of the chamber body 21 and / or the material carrier plate 22 and is embedded in the rectangular groove of the sealing surface of the chamber body 21 and / or the material carrier plate 22. In this embodiment, the sealing structure 7 is a rubber ring distributed along the contact surface of the two. When the material carrier plate 22 is closed, the elastic mechanism 6 pushes the material carrier plate 22 to press the rubber ring, so that it generates radial expansion to fill the gap. At the same time, under the vacuum adsorption, the rubber ring further deforms towards the low-pressure side to achieve a double dynamic seal.

[0034] The drive mechanism 5 includes a drive member 51 fixed to the base 1, and a drive plate 52 that moves axially along the first guide rod 41 is connected to the output end of the drive member 51. The drive plate 52 is provided with a first guide hole 42 that is sleeved on the first guide rod 41. The first guide hole 42 is seamlessly slidably connected to the first guide rod 41. The drive member 51 can be either a lead screw drive or a cylinder drive.

[0035] The drive plate 52 is rigidly or floatingly connected to the output end of the drive component 51 via a connector. The first guide hole 42 is fitted with a linear bearing or uses a self-lubricating material bushing to ensure low-friction, high-precision axial sliding with the first guide rod 41.

[0036] When the drive component 51 is cylinder-driven, it includes a cylinder body fixed to the base 1 and a piston rod connected to the drive plate. Compressed gas is introduced into the cylinder body for drive, which in turn pushes the drive plate 52 axially along the first guide rod 41 via the piston rod.

[0037] The movement of the drive plate 52 is transmitted to the material carrier plate 22 through the elastic mechanism 6, which drives the material carrier plate 22 to close or separate relative to the chamber body 21.

[0038] The welding mechanism 3 is a laser welding device. The output end of the welding mechanism 3 points into the cavity body 21 through the welding window 24 provided on the cavity body 21. Specifically, the welding window 24 is a glass window, the purpose of which is to ensure the sealed environment of the vacuum cavity 2 while allowing the welding mechanism 3 to process the parts to be processed inside.

[0039] The welding window 24 is fixed to the through hole opened on the main body of the chamber 21.

[0040] The light-transmitting lens is made of high-temperature resistant optical glass.

[0041] The laser beam from welding mechanism 3 passes through a light-transmitting lens and enters the vacuum chamber 2, acting on the workpiece to be processed placed on the carrier plate 22. The structural design of welding window 24 ensures the sealing integrity of vacuum chamber 2 during laser welding while allowing efficient transmission of laser energy.

[0042] The lenses are replaceable, making it easy to maintain them if they become soiled or damaged.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. Vacuum soldering device comprising a base (1) and a vacuum chamber (2) fixed to the base (1), and a soldering mechanism (3) fixed to the base (1) and having its output directed to the vacuum chamber (2), characterized in that, The vacuum chamber (2) includes a chamber body (21) suspended and fixed on the base (1) by a plurality of first guide rods (41), and a material plate (22) driven by a drive mechanism (5) to move relative to the chamber body (21) along the first guide rods (41). After the material plate (22) and the chamber body (21) are closed, a closed chamber is formed inside. A vacuum interface (23) communicating with the closed chamber is provided on the chamber body (21) or the material plate (22). The vacuum welding device also includes an elastic mechanism (6), at least a part of which is connected to the material plate (22) and the remaining part is connected to the drive mechanism (5).

2. The vacuum welding device according to claim 1, characterized in that The elastic mechanism (6) includes several springs (64), one end of which is fixed to the material carrier plate (22), and the other end of which is fixed to the drive mechanism (5).

3. The vacuum welding device of claim 1, wherein, The elastic mechanism (6) further includes a second guide hole (62) and a second guide rod (61) inserted in the second guide hole (62). Either the second guide hole (62) or the second guide rod (61) is located on the material carrier plate (22), and the other is located on the drive mechanism (5).

4. The vacuum welding device according to claim 3, characterized in that The free end of the second guide rod (61) is also provided with a stop (63), the radial dimension of which is larger than the diameter of the second guide hole (62).

5. The vacuum welding device of claim 1, wherein, A sealing structure (7) is also provided on the chamber body (21) and / or the material carrier plate (22), and the sealing structure (7) is provided on the contact surface of the chamber body (21) and / or the material carrier plate (22).

6. The vacuum welding device of claim 1, wherein, The chamber body (21) is provided with the vacuum interface (23) on the side. The vacuum interface (23) connects to the interior of the chamber body (21), so that the interior of the chamber body (21) is connected to the external vacuum pumping device.

7. The vacuum welding apparatus according to claim 1, characterized in that, The welding mechanism (3) is a laser welding device, and the output end of the welding mechanism (3) points to the interior of the chamber body (21) through the welding window (24) provided on the chamber body (21).

8. The vacuum welding device of claim 1, wherein, The drive mechanism (5) includes a drive member (51) fixed to the base (1), and a drive plate (52) that moves axially along the first guide rod (41) is connected to the output end of the drive member (51).

9. The vacuum welding device of claim 8, wherein, The drive plate (52) is provided with a first guide hole (42) that is sleeved on the first guide rod (41), and the first guide hole (42) is seamlessly slidably connected to the first guide rod (41).

10. The vacuum welding device of claim 8, wherein, The driving component (51) can be either a lead screw drive or a cylinder drive.

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