High-vacuum welding furnace

Abstract

The utility model relates to the technical field of welding furnaces. The high-vacuum welding furnace comprises an upper cavity, a lower cavity, at least one cooling pipe, at least one lower heating pipe, a heating jig plate and a pressing mechanism. The upper cavity is arranged above the lower cavity, the upper cavity and the lower cavity form a vacuum cavity, the cooling pipe is arranged in the lower cavity, the heating jig plate is arranged above the cooling pipe, the pressing mechanism penetrates through the upper cavity, a pressing column of the pressing mechanism presses the heating jig plate, and the heating jig plate is arranged above the cooling pipe. And the lower heating pipe is vertical to the cooling pipe. Workpieces can be placed and taken out without adjusting a pressing mechanism, the working efficiency is improved, and the advantages are obvious when a large number of small-size workpieces or workpieces which are frequently replaced are processed.

Description

Technical Field

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

[0002] Existing vacuum welding equipment is a specialized device for welding workpieces. Its main structure includes a controller, a sealable cavity, a vacuum pump, a heating device, a heating plate, and a cooling device. The heating plate is located within the sealable cavity and is used to place the workpiece. The heating and cooling devices are located below the heating plate and are connected to the controller, which regulates the heating and cooling of the heating plate. The vacuum pump is located outside the sealable cavity and performs vacuuming to ensure the welding process is conducted in an oxygen-free environment, thus ensuring welding quality, reducing internal voids, and improving the reliability of the weldment.

[0003] The heating plates of existing vacuum welding furnaces have low bending strength, and the substrate cannot be firmly fixed on the heating plates. Summary of the Invention

[0004] This invention provides a high-vacuum welding furnace to solve the problem of low working efficiency in existing high-vacuum welding furnaces when processing a large number of small-sized or frequently changed workpieces.

[0005] A high-vacuum welding furnace includes an upper cavity, a lower cavity, at least one cooling pipe, at least one lower heating pipe, a heating fixture plate, and a clamping mechanism. The upper cavity is disposed above the lower cavity, and the upper cavity and the lower cavity form a vacuum cavity. The cooling pipe is disposed inside the lower cavity, the heating fixture plate is disposed above the cooling pipe, the clamping mechanism passes through the upper cavity, and the clamping column of the clamping mechanism clamps the heating fixture plate. The lower heating pipe is perpendicular to the cooling pipe.

[0006] According to the high vacuum welding furnace of this utility model, the clamping mechanism further includes a mounting base, a driving mechanism, a bellows, and a clamping plate; the plurality of clamping heads of the clamping column are arranged below the clamping plate, one end of the bellows is arranged on the upper part of the clamping plate, and the other end of the bellows is fixed on the mounting base and driven by the driving mechanism.

[0007] According to the high vacuum welding furnace of this utility model, the clamping column includes a clamping head, a clamping connecting component, and a clamping bolt; one end of the clamping head is movably disposed inside the clamping connecting component, and the other end of the clamping head clamps the heating fixture plate; the clamping connecting component is disposed on the clamping plate and fixed by the clamping bolt.

[0008] According to the high vacuum welding furnace of this utility model, the heating fixture plate includes a heating plate frame, multiple gripping columns, multiple workpiece slots and multiple cooling holes; the gripping columns are symmetrically arranged on the heating plate frame, the workpiece slots are arranged on the heating plate frame, the cooling holes are arranged at the lower part of the heating plate frame, and the cooling pipes are embedded in the cooling holes.

[0009] The high-vacuum welding furnace according to this utility model also includes multiple support columns, and the cooling pipe is disposed on the support columns.

[0010] According to the high vacuum welding furnace of this utility model, the cooling pipe is arranged above the lower heating pipe.

[0011] According to the high vacuum welding furnace of this utility model, the lower cavity further includes a lower cavity frame, a nitrogen pipe and a protective plate; the protective plate is arranged on both sides of the heating fixture plate, and the nitrogen pipe is arranged on both sides of the lower cavity frame.

[0012] The high-vacuum welding furnace according to this utility model also includes a vacuum pumping mechanism and a high-sealing slide valve. The high-sealing slide valve is arranged below the lower cavity, and the vacuum pumping mechanism is arranged below the high-sealing slide valve.

[0013] According to the high vacuum welding furnace of this utility model, a water-cooling pipeline is provided inside the bottom of the lower cavity frame.

[0014] According to the high vacuum welding furnace of this utility model, the upper cavity further includes an upper cavity frame, an observation window, and at least one upper heating tube; the observation window is disposed in the middle of the upper cavity frame, and the upper heating tube is disposed inside the upper cavity frame, with the upper heating tube perpendicular to the lower heating tube.

[0015] This novel vacuum furnace eliminates the need to adjust the clamping mechanism for placing and removing workpieces, thus improving work efficiency. It offers significant advantages when processing large quantities of small-sized or frequently changed workpieces. The lower part of the fixture incorporates a cooling pipe, and the heating plate and fixture are integrated into a single design. The clamping mechanism presses the heated fixture plate tightly against the cooling pipe, effectively absorbing and removing heat, accelerating cooling, and improving production efficiency. Furthermore, it ensures more uniform cooling of the workpieces, reducing thermal stress and deformation, and improving product quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a three-dimensional structural schematic diagram of a high-vacuum welding furnace;

[0018] Figure 2 This is a schematic diagram of the main structure of a high-vacuum welding furnace;

[0019] Figure 3 This is a cross-sectional view and structural schematic diagram of a high-vacuum welding furnace.

[0020] Figure 4 This is a three-dimensional structural diagram of the lower cavity;

[0021] Figure 5 This is a three-dimensional structural diagram of the upper cavity;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the heating fixture plate;

[0023] Figure 7 This is a three-dimensional structural schematic diagram of the clamping mechanism;

[0024] Figure 8 This is a magnified view of the structure of part A;

[0025] Reference numerals: 1. Upper cavity; 2. Lower cavity; 3. Clamping mechanism; 31. Mounting base; 32. Bellows; 33. Clamping plate; 34. Clamping column; 4. Vacuuming mechanism; 5. Drive mechanism; 6. High-sealing slide valve; 11. Upper cavity frame; 12. Upper heating tube; 13. Observation window; 21. Lower cavity frame; 22. Lower heating tube; 23. Cooling tube; 24. Heating fixture plate; 25. Nitrogen tube; 26. Support column; 27. Protective plate; 28. Opening cylinder; 241. Heating plate frame; 242. Gripping column; 243. Workpiece groove; 244. Cooling hole; 341. Clamping head; 342. Clamping connecting component; 343. Clamping bolt. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0029] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] The following is combined with Figure 1-7A high-vacuum welding furnace according to an embodiment of the present invention includes an upper cavity 1, a lower cavity 2, at least one cooling pipe 23, at least one lower heating pipe 22, a heating fixture plate 24, and a pressing mechanism 3. The upper cavity 1 is disposed above the lower cavity 2, and the upper cavity 1 and the lower cavity 2 form a vacuum cavity. The cooling pipe 23 is disposed inside the lower cavity 2, and the heating fixture plate 24 is disposed above the cooling pipe 23. The pressing mechanism 3 passes through the upper cavity 1, that is, the pressing mechanism 3 passes vertically through the upper cavity 1. The pressing column 34 of the pressing mechanism 3 presses the heating fixture plate 24. The lower heating pipe 22 is perpendicular to the cooling pipe 23.

[0032] In some embodiments, the clamping mechanism 3 further includes a mounting base 31, a driving mechanism 5, a bellows 32, and a clamping plate 33; a plurality of clamping heads 341 of the clamping column 34 are disposed below the clamping plate 33, one end of the bellows 32 is disposed on the upper part of the clamping plate 33, and the other end of the bellows 32 is fixed on the mounting base 31 and driven by the driving mechanism 5.

[0033] In some embodiments, the clamping column 34 includes a clamping head 341, a clamping connecting component 342, and a clamping bolt 343; one end of the clamping head 341 is movably disposed inside the clamping connecting component 342, and the other end of the clamping head 341 clamps the heating fixture plate 24; the clamping connecting component 342 is disposed on the clamping plate 33 and fixed by the clamping bolt 343.

[0034] In some embodiments, the heating fixture plate 24 includes a heating plate frame 241, a plurality of gripping posts 242, a plurality of workpiece slots 243, and a plurality of cooling holes 244; the gripping posts 242 are symmetrically arranged on the heating plate frame 241, that is, the gripping posts 242 are preferably diagonally symmetrically arranged on the heating plate frame 241; the workpiece slots 243 are provided on the heating plate frame 241, that is, the workpiece slots 243 are grooves for placing workpieces; the lower part of the heating plate frame 241 is provided with cooling holes 244, and cooling pipes 23 are embedded in the cooling holes 244.

[0035] In some embodiments, a plurality of support columns 26 are also included, and cooling pipes 23 are disposed on the support columns 26.

[0036] In some embodiments, the cooling pipe 23 is disposed above the lower heating pipe 22.

[0037] In some embodiments, the lower cavity 2 further includes a lower cavity frame 21, a nitrogen pipe 25, and a protective plate 27; the protective plates 27 are provided on both sides of the heating fixture plate 24, and the nitrogen pipe 25 is provided on both sides of the lower cavity frame 21.

[0038] In some embodiments, the system further includes a vacuuming mechanism 4 and a high-sealing slide valve 6, with the high-sealing slide valve 6 located below the lower cavity 2 and the vacuuming mechanism 4 located below the high-sealing slide valve 6.

[0039] In some embodiments, a water-cooling pipeline is provided inside the bottom of the lower cavity frame 21.

[0040] In some embodiments, the upper cavity 1 further includes an upper cavity frame 11, an observation window 13, and at least one upper heating pipe 12; the observation window 13 is disposed in the middle of the upper cavity frame 11, and the upper heating pipe 12 is disposed inside the upper cavity frame 11, with the upper heating pipe 12 perpendicular to the lower heating pipe 22. The upper cavity 1 is opened by an opening cylinder 28.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-vacuum welding furnace, characterized in that, It includes an upper cavity, a lower cavity, at least one cooling pipe, at least one lower heating pipe, a heating fixture plate, and a pressing mechanism; the upper cavity is located above the lower cavity, and the upper cavity and the lower cavity form a vacuum cavity; the cooling pipe is located inside the lower cavity; the heating fixture plate is located above the cooling pipe; the pressing mechanism passes through the upper cavity; the pressing column of the pressing mechanism presses against the heating fixture plate; and the lower heating pipe is perpendicular to the cooling pipe.

2. The high-vacuum welding furnace according to claim 1, characterized in that, The clamping mechanism further includes a mounting base, a drive mechanism, a bellows, and a clamping plate; multiple clamping heads of the clamping column are disposed below the clamping plate, one end of the bellows is disposed above the clamping plate, and the other end of the bellows is fixed on the mounting base and driven by the drive mechanism.

3. The high-vacuum welding furnace according to claim 2, characterized in that, The clamping column includes a clamping head, a clamping connecting component, and a clamping bolt; one end of the clamping head is movably disposed inside the clamping connecting component, and the other end of the clamping head clamps the heating fixture plate; the clamping connecting component is disposed on the clamping plate and fixed by the clamping bolt.

4. The high-vacuum welding furnace according to claim 1, characterized in that, The heating fixture plate includes a heating plate frame, multiple gripping columns, multiple workpiece slots, and multiple cooling holes; the gripping columns are symmetrically arranged on the heating plate frame, the workpiece slots are arranged on the heating plate frame, the cooling holes are arranged at the lower part of the heating plate frame, and the cooling pipes are embedded in the cooling holes.

5. The high-vacuum welding furnace according to claim 1, characterized in that, It also includes multiple support columns, on which the cooling pipe is mounted.

6. The high-vacuum welding furnace according to claim 1, characterized in that, The cooling pipe is positioned above the lower heating pipe.

7. The high vacuum welding furnace according to claim 1, characterized in that, The lower cavity also includes a lower cavity frame, a nitrogen pipe, and a protective plate; the protective plate is provided on both sides of the heating fixture plate, and the nitrogen pipe is provided on both sides of the lower cavity frame.

8. The high-vacuum welding furnace according to claim 7, characterized in that, It also includes a vacuuming mechanism and a high-seal gate valve, with the high-seal gate valve located below the lower cavity and the vacuuming mechanism located below the high-seal gate valve.

9. The high-vacuum welding furnace according to claim 7, characterized in that, Water-cooling pipes are installed inside the bottom of the lower cavity frame.

10. The high-vacuum welding furnace according to claim 1, characterized in that, The upper cavity also includes an upper cavity frame, an observation window, and at least one upper heating tube; the observation window is located in the middle of the upper cavity frame, and the upper heating tube is located inside the upper cavity frame, with the upper heating tube perpendicular to the lower heating tube.

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