Vacuum welding furnace

Abstract

The utility model relates to the technical field of welding furnaces, and provides a vacuum welding furnace which comprises an upper cavity, a lower cavity, a heating plate, a plurality of upper heating pipes and a plurality of lower heating pipes. The upper cavity is arranged above the lower cavity, the upper cavity and the lower cavity form a sealed vacuum cavity, the heating plate is arranged in the vacuum cavity, the upper heating pipe is arranged in the upper cavity, the lower heating pipe is arranged in the lower cavity, and the lower heating pipe is arranged in the lower cavity. At least one temperature measuring hole is formed in the upper portion of the heating plate, and at least two temperature control holes are formed in the heating plate. The temperature control uniformity is good, and the temperature difference of different areas of the heating plate can be found in time.

Description

Technical Field

[0001] This utility model relates to the field of welding furnace technology, and in particular to a 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] Existing vacuum welding furnaces have poor temperature control uniformity and cannot detect temperature differences in different areas of the heating plate in a timely manner. Summary of the Invention

[0004] This invention provides a vacuum welding furnace to solve the problem of poor temperature control uniformity and inability to detect temperature differences in different areas of the heating plate in the prior art.

[0005] A vacuum welding furnace includes an upper cavity, a lower cavity, a heating plate, multiple upper heating tubes, and multiple lower heating tubes. The upper cavity is disposed above the lower cavity, and the upper cavity and the lower cavity form a sealed vacuum cavity. The heating plate is disposed within the vacuum cavity, the upper heating tubes are disposed within the upper cavity, and the lower heating tubes are disposed within the lower cavity. At least one temperature measuring hole is provided on the upper part of the heating plate, and at least two temperature control holes are provided inside the heating plate.

[0006] The vacuum welding furnace according to this utility model further includes a locking plate and a locking handwheel. The locking plate is disposed on both sides above the vacuum chamber, and the locking handwheel is movably disposed on both sides of the locking plate.

[0007] According to the vacuum welding furnace of this utility model, the locking plate includes a locking plate body, a locking groove, and a locking limiting block; the locking groove is provided on both sides of the locking plate body, the locking limiting block is provided on both sides of the lower part of the locking plate body, and the locking limiting block is provided on both sides of the vacuum cavity.

[0008] According to the vacuum welding furnace of this utility model, the lower cavity includes a lower cavity frame, a nitrogen pipe and a plurality of support columns; the lower cavity frame is provided with a plurality of support columns at its bottom, and the nitrogen pipe is provided on both sides inside the lower cavity frame.

[0009] According to the vacuum welding furnace of this utility model, a water-cooling pipeline is provided inside the bottom of the lower cavity frame.

[0010] According to the vacuum welding furnace of this utility model, the upper cavity further includes an upper cavity frame and an observation window; the observation window is disposed in the middle of the upper cavity frame, and a water cooling pipeline is disposed inside the top of the upper cavity frame.

[0011] According to the vacuum welding furnace of this utility model, the heating plate includes a heating plate body, a plurality of cooling pipe grooves and a plurality of heating plate area grooves. The heating plate area grooves are arranged around the upper part of the heating plate body, and the cooling pipe grooves are arranged at the lower part of the heating plate body.

[0012] The vacuum welding furnace according to this utility model also includes a support mechanism, which is arranged below the lower cavity and has multiple rollers below it.

[0013] According to the vacuum welding furnace of this utility model, a vacuum port is provided below the lower cavity.

[0014] According to the vacuum welding furnace of this utility model, the upper heating tube and the lower heating tube are arranged vertically.

[0015] This invention enhances the pressure resistance of the sealed cavity, improves the positive pressure environment, and enhances welding quality by incorporating a locking plate and locking handwheel. Multiple temperature measuring holes inside the heating plate ensure more uniform temperature control and allow for timely detection of temperature differences between different areas of the heating plate. This enables adjustments to the power or heating time of the infrared heating tube, ensuring a more consistent heating rate and final temperature across all areas of the heating plate, thus improving heating uniformity. Fault diagnosis is also more efficient; if a temperature malfunction in a specific area of ​​the heating plate causes abnormal temperatures, the faulty area can be quickly located. 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 1 This is a three-dimensional structural schematic diagram of a vacuum welding furnace;

[0018] Figure 2 This is a magnified view of the structure of part A.

[0019] Figure 3 This is a three-dimensional structural diagram of the locking plate;

[0020] Figure 4A three-dimensional structural diagram of the lower cavity. Figure 1 ;

[0021] Figure 5 A three-dimensional structural diagram of the lower cavity. Figure 2 ;

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

[0023] Figure 7 This is a schematic diagram of the enlarged view of part B.

[0024] Figure 8 This is a three-dimensional structural diagram of the upper cavity;

[0025] Reference numerals: 1. Upper cavity; 2. Lower cavity; 3. Support mechanism; 4. Roller; 5. Alarm light; 6. Locking plate; 61. Locking plate body; 62. Locking groove; 63. Locking limit block; 7. Locking handwheel; 11. Upper cavity frame; 12. Upper heating tube; 13. Observation window; 21. Lower cavity frame; 22. Support column; 23. Nitrogen pipe; 24. Lower heating tube; 25. Heating plate; 26. Cooling tube; 251. Heating plate body; 252. Cooling tube groove; 253. Heating area groove; 254. Temperature control hole; 255. Temperature measuring hole. 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 more embodiments or examples. 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 Figure 1-8 This invention describes a vacuum welding furnace comprising an upper cavity 1, a lower cavity 2, a heating plate 25, multiple upper heating tubes 12, and multiple lower heating tubes 24. The upper cavity 1 is positioned above the lower cavity 2, forming a sealed vacuum cavity. The heating plate 25 is disposed within the vacuum cavity. The upper heating tubes 12 are disposed within the upper cavity 1, and the lower heating tubes 24 are disposed within the lower cavity 2. At least one temperature measuring hole 255 is provided on the upper part of the heating plate 25, and at least two temperature control holes 254 are provided inside the heating plate 25. Temperature control sensors are disposed inside the temperature control holes 254, and temperature measuring sensors are disposed inside the temperature measuring holes 255. The temperature measuring holes 255 are evenly distributed around the upper periphery and center of the heating plate 25. The upper heating tubes 12 and lower heating tubes 24 are infrared heating tubes.

[0032] In some cases, a temperature control sensor may also be installed inside the temperature measuring port 255.

[0033] The heating plate 25 has multiple temperature sensing holes 255 inside, resulting in more uniform temperature control. It can promptly detect temperature differences in different areas of the heating plate 25, and then adjust the power or heating time of the infrared heating tube to make the heating rate and final temperature of each area of ​​the heating plate 25 more consistent, thus improving heating uniformity. Fault diagnosis is more efficient; if a temperature fault in a certain area of ​​the heating plate 25 causes abnormal temperature, the faulty area can be quickly located.

[0034] In some embodiments, the system further includes a locking plate 6 and a locking handwheel 7. The locking plate 6 is disposed on both sides above the vacuum chamber, and the locking handwheel 7 is movably disposed on both sides of the locking plate 6.

[0035] In some embodiments, the locking plate 6 includes a locking plate body 61, locking grooves 62, and locking limiting blocks 63. Locking grooves 62 are provided on both sides of the locking plate body 61, and locking limiting blocks 63 are provided on both sides of the lower part of the locking plate body 61, with the locking limiting blocks 63 positioned on both sides of the vacuum chamber. A locking handwheel 7 is locked within the locking grooves 62. By providing the locking plate 6 and locking handwheel 7, the pressure resistance of the sealed chamber is enhanced, the positive pressure environment is improved, and the welding quality is enhanced.

[0036] In some embodiments, the lower cavity 2 includes a lower cavity frame 21, a nitrogen pipe 23, and a plurality of support columns 22; the lower cavity frame 21 is provided with a plurality of support columns 22 at its bottom, and the nitrogen pipe 23 is provided on both sides inside the lower cavity frame 21. The support columns 22 support the cooling pipe 26.

[0037] In some embodiments, a water-cooling pipeline is provided inside the bottom of the lower cavity frame 21.

[0038] In some embodiments, the upper cavity 1 further includes an upper cavity frame 11 and an observation window 13; the observation window 13 is disposed in the middle of the upper cavity frame 11, and a water cooling pipe is disposed inside the top of the upper cavity frame 11.

[0039] In some embodiments, the heating plate 25 includes a heating plate body 251, a plurality of cooling pipe grooves 252, and a plurality of heating plate area grooves 253. The heating plate area grooves 253 are provided around the upper part of the heating plate body 251, and the cooling pipe grooves 252 are provided at the lower part of the heating plate body 251. Cooling pipes 26 are embedded in the cooling pipe grooves 252.

[0040] In some embodiments, a support mechanism 3 is also included, which is disposed below the lower cavity 2, and a plurality of rollers 4 are disposed below the support mechanism 3. An alarm light 5 is disposed above the support mechanism 3.

[0041] In some embodiments, a vacuum port is provided below the lower cavity 2.

[0042] In some embodiments, the upper heating tube 12 and the lower heating tube 24 are arranged vertically.

[0043] 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 vacuum welding furnace, characterized in that, It includes an upper cavity, a lower cavity, a heating plate, multiple upper heating tubes, and multiple lower heating tubes; the upper cavity is located above the lower cavity, and the upper cavity and the lower cavity form a sealed vacuum cavity, the heating plate is located in the vacuum cavity, the upper heating tubes are located in the upper cavity, the lower heating tubes are located in the lower cavity, and at least one temperature measuring hole is provided on the upper part of the heating plate and at least two temperature control holes are provided inside the heating plate.

2. The vacuum welding furnace according to claim 1, characterized in that, It also includes a locking plate and a locking handwheel. The locking plate is disposed on both sides above the vacuum chamber, and the locking handwheel is movably disposed on both sides of the locking plate.

3. The vacuum welding furnace according to claim 2, characterized in that, The locking plate includes a locking plate body, locking grooves, and locking limiting blocks; the locking grooves are provided on both sides of the locking plate body, and the locking limiting blocks are provided on both sides of the lower part of the locking plate body, and the locking limiting blocks are provided on both sides of the vacuum cavity.

4. The vacuum welding furnace according to claim 1, characterized in that, The lower cavity includes a lower cavity frame, a nitrogen pipe, and multiple support columns; multiple support columns are provided at the bottom of the lower cavity frame, and the nitrogen pipe is provided on both sides inside the lower cavity frame.

5. The vacuum welding furnace according to claim 4, characterized in that, Water-cooling pipes are installed inside the bottom of the lower cavity frame.

6. The vacuum welding furnace according to claim 1, characterized in that, The upper cavity also includes an upper cavity frame and an observation window; the observation window is located in the middle of the upper cavity frame, and a water-cooling pipeline is provided inside the top of the upper cavity frame.

7. The vacuum welding furnace according to claim 1, characterized in that, The heating plate includes a heating plate body, multiple cooling pipe grooves and multiple heating plate area grooves. The heating plate area grooves are arranged around the upper part of the heating plate body, and the cooling pipe grooves are arranged at the lower part of the heating plate body.

8. The vacuum welding furnace according to claim 1, characterized in that, It also includes a support mechanism, which is located below the lower cavity, and has multiple rollers located below the support mechanism.

9. The vacuum welding furnace according to claim 1, characterized in that, A vacuum port is provided at the bottom of the lower cavity.

10. The vacuum welding furnace according to claim 1, characterized in that, The upper heating tube and the lower heating tube are arranged vertically.

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