A vacuum box

Abstract

The utility model provides a kind of vacuum box, including box and cover plate, processing cavity is configured in the box, the cover plate is assembled in the box for closing the processing cavity;Perforated light window is provided on the cover plate, light transmission plate is configured on the cover plate, the light transmission plate is used to cover the light window, first fixed ram is configured on the cover plate, a plurality of first fixed rams are spaced apart along the contour of the light transmission plate, the first fixed ram acts on the light transmission plate, so that the light transmission plate can be attached to the cover plate.The light transmission plate and cover plate of the utility model are detachably connected, specifically, the light transmission plate is attached to the outer side of the cover plate, and is pressed and positioned by the first fixed ram to realize the sealing of the gap between the light transmission plate and the cover plate, which facilitates the maintenance and replacement of the light transmission plate.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, and in particular to a vacuum box. Background Technology

[0002] Vacuum laser welding is a high-precision welding method performed in a vacuum environment, utilizing a high-energy laser beam to melt and join metals or other materials. The laser beam is transmitted and focused through an optical system onto the welding point, causing the material to melt rapidly. When the laser beam is removed or turned off, the molten material cools and solidifies, forming a strong weld joint. The entire welding process takes place within a vacuum chamber to avoid the influence of oxygen and other gases in the air on the weld quality. The industry typically uses vacuum chambers to construct this vacuum environment. However, the chamber requires the assembly of light-transmitting components to allow the laser beam to pass through, making it difficult to manufacture the chamber as a single unit. Effective sealing of the assembled light-transmitting components is challenging, and using adhesive-sealed components makes maintenance and replacement difficult. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a vacuum box whose light-transmitting plate is easy to inspect and replace, while maintaining good sealing performance.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] A vacuum chamber includes a chamber body and a cover plate. A processing cavity is disposed inside the chamber body. The cover plate is assembled to the chamber body to close the processing cavity. A light-transmitting window is provided through the cover plate. A light-transmitting plate is disposed on the cover plate to cover the light-transmitting window. A first fixing head is disposed on the cover plate. A plurality of first fixing heads are spaced apart along the contour of the light-transmitting plate. The first fixing heads act on the light-transmitting plate so that the light-transmitting plate can be attached to the cover plate.

[0006] According to a preferred embodiment, the first fixed pressure head includes a base and a pressure block connected to each other. The base is assembled on the cover plate, and the pressure block is disposed on the top of the base and extends toward the light-transmitting plate.

[0007] According to a preferred embodiment, a buffer pad is disposed on one side of the pressure block facing the light-transmitting plate.

[0008] According to a preferred embodiment, a first mounting hole is provided through the first fixed pressure head, a first screw hole is provided on the cover plate, a first screw is disposed in the first mounting hole, and the first screw is threadedly connected to the first screw hole.

[0009] According to a preferred embodiment, the cover plate is provided with a first recessed groove, the light-transmitting window is disposed at the bottom of the first recessed groove, the bottom of the first recessed groove is provided with a first sealing groove, the first sealing groove is arranged around the light-transmitting window, a first sealing ring is assembled in the first sealing groove, and the light-transmitting plate is attached to the first sealing ring.

[0010] According to a preferred embodiment, an observation window is provided through one side of the box, and an observation plate is provided outside the observation window. A second fixing head is provided on the box, and a plurality of second fixing heads are spaced apart along the outline of the observation plate. The second fixing heads act on the observation plate so that the observation plate can fit into the box.

[0011] According to a preferred embodiment, a stage is disposed inside the processing cavity, and the stage is capable of moving vertically to approach or move away from the light-transmitting plate.

[0012] According to a preferred embodiment, the processing cavity is provided with a guide column extending in a vertical direction, the stage is slidably connected to the guide column, and the bottom of the housing is provided with an electrically controlled lifting platform for driving the stage to move in a vertical direction.

[0013] According to a preferred embodiment, the side wall of the housing is provided with a material picking tube communicating with the processing cavity. The material picking tube is provided with a mounting seat and a locking seat. A support plate is hinged to the mounting seat. An adjusting shaft is provided on the support plate. The adjusting shaft is threadedly connected to the support plate. A sealing cover is provided at one end of the adjusting shaft near the housing. The sealing cover is used to block the material picking tube. The free end of the support plate can engage with or disengage from the locking seat.

[0014] According to a preferred embodiment, the side wall of the enclosure is provided with a wiring area, and the vacuum chamber further includes a wire and a silicone sealing plug. The silicone sealing plug is sleeved on the outside of the wire and penetrates the side wall of the enclosure through the wiring area. The inner surface of the wiring area is coated with sealing silicone grease.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] The light-transmitting plate and the cover plate of this utility model are detachably connected. Specifically, the light-transmitting plate is attached to the outer side of the cover plate and is pressed and limited by the first fixing head to achieve the sealing of the gap between the light-transmitting plate and the cover plate, which facilitates the maintenance and replacement of the light-transmitting plate. At the same time, the light-transmitting plate is fixed by the first fixing head at several intervals to ensure the sealing of the gap between the light-transmitting plate and the cover plate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural diagram of the vacuum chamber provided in an embodiment of this utility model;

[0019] Figure 2 An exploded view of the vacuum chamber provided in this embodiment of the utility model;

[0020] Figure 3 for Figure 2 A partially enlarged schematic diagram of the structure at point A;

[0021] Figure 4 A schematic diagram of the assembly structure of the stage and guide column in the heating cavity provided in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the assembly structure of the material receiving tube and the sealing cap provided in an embodiment of the present utility model.

[0023] Icons: 1. Housing; 11. Processing chamber; 12. Observation plate; 13. Second fixed pressure head; 14. Second sinking groove; 2. Cover plate; 21. Light-transmitting window; 22. First sinking groove; 23. First sealing groove; 3. Light-transmitting plate; 4. First fixed pressure head; 40. First assembly hole; 41. Base; 42. Pressure block; 421. Buffer pad; 5. First sealing ring; 6. Platform; 61. Guide column; 62. Electrically controlled lifting platform; 7. Material picking tube; 71. Mounting seat; 72. Locking seat; 721. Locking groove; 73. Support plate; 74. Adjusting shaft; 741. Adjusting handle; 75. Sealing cover; 76. Locking handle; 761. Snap-fit ​​pin; 8. Vacuum pump; 9. Wiring area; 91. Wire; 92. Sealing grease. Detailed Implementation

[0024] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0027] Please refer to Figures 1 to 5 A vacuum chamber includes a chamber body 1 and a cover plate 2. A processing cavity 11 is disposed inside the chamber body 1. The cover plate 2 is fitted onto the chamber body 1 to close the processing cavity 11. A light-transmitting window 21 is provided through the cover plate 2. A light-transmitting plate 3 is disposed on the cover plate 2 to cover the light-transmitting window 21. A first fixing head 4 is disposed on the cover plate 2, and several first fixing heads 4 are spaced apart along the contour of the light-transmitting plate 3. The first fixing heads 4 act on the light-transmitting plate 3 so that the light-transmitting plate 3 can be fitted to the cover plate 2. Optionally, the light-transmitting plate 3 is a transparent acrylic sheet. During welding, a laser beam passes through the light-transmitting plate 3, through the light-transmitting window 21, and is projected into the processing cavity 11. The light-transmitting plate 3 and the cover plate 2 are detachably connected. Specifically, the light-transmitting plate 3 is attached to the outer side of the cover plate 2 and is pressed and limited by the first fixing head 4 to achieve the sealing of the gap between the light-transmitting plate 3 and the cover plate 2, which facilitates the maintenance and replacement of the light-transmitting plate 3. At the same time, by setting the first fixing head 4 at several intervals to press and fix the light-transmitting plate 3, the sealing of the gap between the light-transmitting plate 3 and the cover plate 2 can be guaranteed.

[0028] like Figure 2 and Figure 3 As shown, the first fixed pressure head 4 includes a base 41 and a pressure block 42 connected to each other. The base 41 is assembled on the cover plate 2, and the pressure block 42 is disposed on the top of the base 41, extending towards the light-transmitting plate 3. In this embodiment, the first fixed pressure head 4 is L-shaped. The base 41 extends vertically, and the pressure block 42 extends horizontally.

[0029] Furthermore, a buffer pad 421 is disposed on the side of the pressure block 42 facing the light-transmitting plate 3. Optionally, the buffer pad 421 is made of rubber to prevent the first fixed pressure head 4 from damaging the light-transmitting plate 3.

[0030] Preferably, the base 41 and the pressure block 42 are integrally formed.

[0031] In this embodiment, a first mounting hole 40 is provided through the first fixed pressure head 4, and a first screw hole (not shown in the figure) is provided on the cover plate 2. A first screw (not shown in the figure) is disposed in the first mounting hole 40, and the first screw is threaded to the first screw hole. Preferably, the first screw hole is a blind hole. Thus, when it is necessary to inspect and replace the light-transmitting plate 3, the first screw is loosened, and the first fixed pressure head 4 is rotated to release the pressure block 42 from limiting the light-transmitting plate 3.

[0032] like Figure 2 and Figure 3 As shown, the cover plate 2 is provided with a first recessed groove 22, and a light-transmitting window 21 is located at the bottom of the first recessed groove 22. A first sealing groove 23 is provided at the bottom of the first recessed groove 22, and the first sealing groove 23 is arranged around the light-transmitting window 21. A first sealing ring 5 is installed in the first sealing groove 23, and the light-transmitting plate 3 is attached to the first sealing ring 5. The first recessed groove 22 is used to reduce the finishing area of ​​the upper surface of the cover plate 2. Specifically, the bottom of the first recessed groove 22 only needs to be finished to facilitate high-precision assembly with the light-transmitting plate 3 and thus ensure sealing.

[0033] like Figure 1 and Figure 2 As shown, an observation window is provided through one side of the enclosure 1, and an observation plate 12 covers the observation window. A second fixing head 13 is provided on the enclosure 1, and several second fixing heads 13 are spaced apart along the contour of the observation plate 12. The second fixing heads 13 act on the observation plate 12 so that the observation plate 12 can fit against the enclosure 1. Optionally, the observation plate 12 is made of transparent acrylic or optical glass.

[0034] Furthermore, a second recessed groove 14 is provided on the side of the observation window, and the observation window is located at the bottom of the second recessed groove 14. A second sealing groove (not shown in the figure) is provided at the bottom of the second recessed groove 14, and the second sealing groove surrounds the observation window. A second sealing ring (not shown in the figure) is installed in the second sealing groove, and the observation plate 12 is attached to the second sealing ring. The observation plate 12 facilitates the observation of the welding situation inside the vacuum chamber by the operator. In this embodiment, the second fixed pressure head 13 has the same structure as the first fixed pressure head 4, and will not be described again here.

[0035] like Figure 4As shown, a stage 6 is arranged inside the processing cavity 11, and the stage 6 can move vertically to approach or move away from the light-transmitting plate 3. Specifically, a guide post 61 extending vertically is arranged inside the processing cavity 11, and the stage 6 is slidably connected to the guide post 61. An electrically controlled lifting platform 62 for driving the stage 6 to move vertically is provided at the bottom of the housing 1. In this embodiment, the stage 6 is slidably connected to the guide post 61 via a linear bearing. The electrically controlled lifting platform 62 controls the height adjustment of the stage 6 in the vertical direction to adapt to the processing requirements of different scenarios. In some embodiments, a mechanical fixture (not shown in the figure) is arranged on the stage 6 for assembling the parts to be processed.

[0036] like Figure 1 and Figure 2 As shown, the side wall of the housing 1 is equipped with a material receiving tube 7 that communicates with the processing cavity 11. The material receiving tube 7 is equipped with a mounting base 71 and a locking base 72. A support plate 73 is hinged to the mounting base 71, and an adjusting shaft 74 is provided on the support plate 73. The adjusting shaft 74 is threadedly connected to the support plate 73. A sealing cover 75 is provided at the end of the adjusting shaft 74 near the housing 1, and the sealing cover 75 is used to seal the material receiving tube 7. The free end of the support plate 73 can engage or disengage from the locking base 72. In use, rotating the support plate 73 causes the sealing cover 75 to fit against the material receiving tube 7, engaging the support plate 73 with the locking base 72. At this time, rotating the adjusting shaft 74 drives the sealing cover 75 to move towards the material receiving tube 7, thereby sealing the material receiving tube 7. In some embodiments, a sealing ring is fitted to the end of the material receiving tube 7. In some embodiments, for ease of use, an adjusting handle 741 is fitted on the adjusting shaft 74.

[0037] like Figure 5 As shown, a locking handle 76 is provided on the support plate 73, and a locking pin 761 is configured on the locking handle 76. A locking groove 721 matching the locking pin 761 is configured on the locking seat 72. In use, rotating the locking handle 76 allows the locking pin 761 to enter or disengage from the locking groove 721. It should be noted that the locking handle 76 is rotatably mounted on the support plate 73 and has a certain damping force during rotation to ensure its stable posture after the external force acting on it is removed. The rotatable mounting of the locking handle 76 is prior art and will not be described in detail here.

[0038] like Figure 1 As shown, a vacuum pump 8 is installed on the side of the housing 1.

[0039] like Figure 4As shown, the side wall of the housing 1 is provided with a wiring area 9. The vacuum chamber also includes a wire 91 and a silicone sealing plug. The silicone sealing plug is sleeved on the wire 91 and passes through the side wall of the housing 1 in the wiring area 9. The inner surface of the wiring area 9 is coated with sealing silicone grease 92. The wire 91 here is used to connect the external power supply and the internal electrically controlled lifting platform 62, etc., to realize electrical control.

[0040] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A vacuum chamber, characterized in that, It includes a housing and a cover plate, wherein a processing cavity is disposed inside the housing, and the cover plate is assembled to the housing to close the processing cavity; A light-transmitting window is provided through the cover plate, and a light-transmitting plate is disposed on the cover plate to cover the light-transmitting window. A first fixing head is disposed on the cover plate, and a plurality of first fixing heads are arranged at intervals along the contour of the light-transmitting plate. The first fixing heads act on the light-transmitting plate so that the light-transmitting plate can be attached to the cover plate.

2. The vacuum chamber according to claim 1, characterized in that, The first fixed pressure head includes a base and a pressure block connected to each other. The base is assembled onto the cover plate, and the pressure block is disposed on the top of the base and extends toward the light-transmitting plate.

3. The vacuum chamber according to claim 2, characterized in that, A buffer pad is provided on one side of the pressure block facing the light-transmitting plate.

4. The vacuum chamber according to claim 1, characterized in that, The first fixed pressure head has a through-hole for mounting, and the cover plate has a first screw hole. A first screw is disposed in the first mounting hole and is threadedly connected to the first screw hole.

5. The vacuum chamber according to claim 1, characterized in that, The cover plate is provided with a first recessed groove, the light-transmitting window is located at the bottom of the first recessed groove, the bottom of the first recessed groove is provided with a first sealing groove, the first sealing groove is arranged around the light-transmitting window, a first sealing ring is assembled in the first sealing groove, and the light-transmitting plate is attached to the first sealing ring.

6. The vacuum chamber according to claim 1, characterized in that, An observation window is provided through one side of the box, and an observation plate is provided to cover the observation window. A second fixing head is provided on the box, and a plurality of second fixing heads are spaced apart along the outline of the observation plate. The second fixing head acts on the observation plate so that the observation plate can fit into the box.

7. The vacuum chamber according to claim 1, characterized in that, The processing cavity is equipped with a stage, which can move vertically to approach or move away from the light-transmitting plate.

8. The vacuum chamber according to claim 7, characterized in that, The processing cavity is equipped with guide columns extending vertically, the platform is slidably connected to the guide columns, and the bottom of the housing is equipped with an electrically controlled lifting platform for driving the platform to move vertically.

9. The vacuum chamber according to claim 1, characterized in that, The side wall of the housing is equipped with a material receiving tube that communicates with the processing cavity. The material receiving tube is equipped with a mounting seat and a locking seat. A support plate is hinged to the mounting seat. An adjusting shaft is provided on the support plate. The adjusting shaft is threadedly connected to the support plate. A sealing cover is provided at the end of the adjusting shaft near the housing. The sealing cover is used to block the material receiving tube. The free end of the support plate can engage with or disengage from the locking seat.

10. The vacuum chamber according to claim 1, characterized in that, The side wall of the enclosure is provided with a wiring area. The vacuum box also includes wires and silicone sealing plugs. The silicone sealing plugs are sleeved on the wires and penetrate the side wall of the enclosure through the wiring area. The inner surface of the wiring area is coated with sealing silicone grease.

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