A channel-type vacuum welding furnace

Abstract

The present application provides a channel-type vacuum welding furnace, which includes a chamber body and a sealing valve; a plurality of groups of the chamber bodies are fixedly connected along a first direction, sealing valves are arranged on both sides of the chamber body, and a valve hole through which a workpiece can pass is arranged on the sealing valve; a conveying mechanism and a heating structure are installed inside the chamber body. According to the technical solution provided by the embodiments of the present application, by connecting three chamber bodies, manpower and time are saved; by arranging a sealing valve for every two groups of the chamber bodies, the sealing effect is good; by arranging a heating device, the welding effect is improved.

Description

Technical Field

[0001] The invention specifically discloses a channel type vacuum welding furnace. Background Art

[0002] The vacuum soldering furnace is a process soldering furnace for high-end products, such as laser devices, aerospace, electric vehicles and other industries. Compared with the traditional reflow soldering system, the vacuum soldering system mainly uses vacuum to help discharge the voids above the liquidus of the solder paste or solder sheet, thereby reducing the void rate. Because of the existence of the vacuum system, the air atmosphere can be changed into a nitrogen atmosphere to reduce oxidation. At the same time, the existence of vacuum also increases the possibility of a reducing atmosphere.

[0003] The vacuum welding furnace requires a vacuum environment, and the welding parts need to be frequently opened and closed for placement. At present, the sealing doors of vacuum welding furnaces are mostly manually opened and closed, and there is only a single vacuum chamber. Each time, the cover needs to be opened and closed manually to place the product and perform the welding process. The operation process is time-consuming. The sealing quality is greatly affected by the operator and cannot be effectively guaranteed. This problem needs to be solved urgently. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a channel-type vacuum welding furnace, which is characterized in that: it includes a warehouse body and a sealing valve; a plurality of groups of the warehouse bodies are fixedly connected along a first direction, sealing valves are provided on both sides of the warehouse bodies, and valve holes are provided on the sealing valves for the workpiece to pass through; a conveying mechanism and a heating structure are installed inside the warehouse body.

[0005] According to the technical solution provided in the embodiment of the present application, the transmission mechanism includes: a transmission wheel and a transmission motor; the transmission wheel drives the workpiece to move along the first direction, and the transmission wheel is driven by the transmission motor.

[0006] According to the technical solution provided in the embodiment of the present application, the sealing valve includes a valve body; a valve hole is provided on the valve body, and a matching valve plate assembly is provided inside; the valve plate assembly includes a frame and a valve plate; the frame can be slidably installed in the valve body and driven by a cylinder; the valve plate can be slidably installed on both sides of the frame, corresponding to the valve hole; a wedge mechanism is also provided between the frame and the valve plate, which is used to drive the valve plate to be pressed tightly against the valve body.

[0007] According to the technical solution provided in the embodiment of the present application, the warehouse body also includes a photoelectric detection device, which is installed on both sides of the warehouse body along a second direction, and the second direction is perpendicular to the first; the photoelectric detection device is connected to the conveying motor and the cylinder.

[0008] According to the technical solution provided by the embodiment of the present application, the heating structure includes a heating plate, and a lifting device is arranged below the heating plate. The lifting device drives the heating plate to displace along the third direction through a motor drive, and the third direction is perpendicular to the second direction and perpendicular to the first direction.

[0009] According to the technical solution provided by the embodiment of the present application, the lifting device includes: a base, and support columns are arranged between the heating plate and the base, and the axial direction of the support columns is the third direction.

[0010] According to the technical solution provided by the embodiment of the present application, a hinged upper cover is arranged on the bin body, and the direction of the hinge axis is parallel to the first direction; an observation hole is arranged on the upper cover.

[0011] According to the technical solution provided by the embodiment of the present application, the bin body is further provided with a vacuum pumping hole and an exhaust hole; the vacuum pumping hole is located on one side of the bin body; the exhaust hole is at the top of the bin body.

[0012] According to the technical solution provided by the embodiment of the present application, a water cooling device is installed outside the bin body, and the water cooling device is fixedly installed on the outer wall of the bin body in an S shape.

[0013] The beneficial effects of the present invention: Through the series connection of three groups of bin bodies, a conveying mechanism is arranged in the bin body, so that it is not necessary to frequently open and close the bin body during the welding process, saving the product production time; by setting a sealing valve for every two groups of bin body brackets, a vacuum environment is realized during the welding process, ensuring the welding effect; by arranging a heating mechanism in each group of bin bodies, the problems of each process are controlled, improving the welding effect. Description of the Drawings

[0014] Figure 1 is a schematic diagram of an embodiment of a channel-type vacuum welding furnace of the present application;

[0015] Figure 2 is a schematic diagram of the bin body of a channel-type vacuum welding furnace of the present application;

[0016] Figure 3 is a schematic diagram of the sealing valve of a channel-type vacuum welding furnace of the present application;

[0017] Figure 4 is a schematic diagram of the valve plate assembly of a channel-type vacuum welding furnace of the present application;

[0018] Figure 5 is a front view of a channel-type vacuum welding furnace of the present application;

[0019] Figure 6 is a side view of a channel-type vacuum welding furnace of the present application;

[0020] Figure 7It is a top view of a channel-type vacuum welding furnace of the present application;

[0021] 1. Chamber body; 2. Sealing valve; 10. Upper cover; 11. Conveying structure; 12. Heating structure; 13. Photoelectric detection device; 14. Water cooling device; 20. Valve hole; 21. Valve body; 22. Frame body; 23. Valve plate; 100. Observation hole; 110. Driving wheel; 111. Driving motor; 120. Heating plate; 121. Lifting device; 130. Base; 131. Support column. Specific embodiments

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention.

[0023] Embodiment 1

[0024] As Figure 1 shown, a channel-type vacuum welding furnace includes a chamber body 1 and a sealing valve 2; a plurality of groups of the chamber bodies 1 are fixedly connected along a first direction, sealing valves 2 are provided on both sides of the chamber body 1, and a valve hole 20 through which a workpiece can pass is provided on the sealing valve 2; a conveying mechanism 11 and a heating structure 12 are installed inside the chamber body 1.

[0025] Among them, inlets and outlets are respectively provided on both sides of the chamber body 1 to facilitate the passage of workpieces; three groups of chamber bodies 1 are connected end to end to form a preheating chamber, a welding chamber, and a cooling chamber; and a sealing valve 2 is provided between every two groups of the chamber bodies 1, and the temperature in each chamber is controlled by setting the heating structure 12, so as to realize the entire process of preheating, welding, and cooling.

[0026] Preferably, the material of the welding chamber is copper, and copper has the characteristics of good thermal conductivity, and the chamber body is a two-layer structure, ensuring its airtightness.

[0027] Embodiment 2

[0028] On the basis of Embodiment 1, the conveying mechanism 11 includes: a driving wheel 110 and a driving motor 111; the driving wheel 110 drives the workpiece to displace along the first direction, and the driving wheel 110 is driven by the driving motor 111.

[0029] Among them, a plurality of groups of the driving wheels 110 are installed on both sides inside the chamber body, the driving wheels 110 are friction wheels to prevent the workpieces from slipping idly; a tooling fixture is provided on the driving wheel to clamp the workpiece; slideways are provided on both sides of the tooling fixture to ensure that it does not deviate during sliding.

[0030] Embodiment 3

[0031] The sealing valve 2 includes a valve body 21; a through valve hole 20 is provided on the valve body 21, and a matching valve plate assembly is provided inside; the valve plate assembly includes a frame body 22 and a valve plate 23; the frame body 22 is slidably installed in the valve body 21 and is driven by a cylinder 210; the valve plate 23 is slidably installed on both sides of the frame body 22 and corresponds to the valve hole 20; a wedge mechanism is further provided between the frame body 22 and the valve plate 23 for driving the valve plate 23 to be pressed against the valve body 21.

[0032] Wherein, the wedge mechanism includes a chute located on the valve plate; the chute is arranged along the sliding direction of the frame body 22, and an inclined surface along the length direction is provided at the bottom. A matching sliding column is provided on the frame body 22 corresponding to the chute; the sliding column is located in the chute and is vertically connected to the frame body.

[0033] Further, a sliding assembly is further provided between the valve plate 23 and the frame body 22; the sliding assembly includes a matching slider and a slide rail; the slider is fixedly installed on the valve plate 23 and has a U-shaped cross section; the slide rail is fixedly installed on the frame body 23 and is arranged along the sliding direction of the frame body 23.

[0034] Preferably, it further includes pulleys; mounting frames are respectively provided on both sides of the frame body corresponding to the pulleys; the pulleys are rotatably installed on the mounting frames and abut against the valve body 21.

[0035] Preferably, a sealing ring is provided around the circumference on the side of the valve plate 23 away from the frame body 22; the sealing ring is annular and corresponds to the valve hole 20.

[0036] Embodiment 4

[0037] The bin body 1 further includes a photoelectric detection device 13, and the photoelectric detection device 13 is installed on both sides of the bin body 2 along the second direction, and the second direction is perpendicular to the first; the photoelectric detection device 13 is connected to the conveyor motor 111 and the cylinder 210. When the two groups of photoelectric detection devices detect the product at the same time, the transmission mechanism 11 stops working and the raft plate 23 drops. It realizes the automatic operation of the workpiece during welding, without opening and closing the bin, saving time and effort.

[0038] Further, the heating structure 12 includes a heating plate 120, and a lifting device 121 is arranged below the heating plate 120. The lifting device 121 drives the heating plate 120 to displace along the third direction through a motor drive, and the third direction is perpendicular to the second direction and perpendicular to the first direction.

[0039] Among them, 9 heating rods are arranged in the heating plate 120. If any of them is damaged, it can be independently replaced. The heating plate 120 is driven by a lifting device 121 to move up and down, so as to adjust the distance between the heating plate and the workpiece, and further control the temperature when welding the workpiece.

[0040] Further, the lifting device 121 includes: a base 130. A support column 131 is provided between the heating plate 120 and the base 131. The axial direction of the support column 131 is the third direction.

[0041] Further, it is characterized in that: a hinged upper cover 10 is provided on the bin body 1. The direction of the hinge axis is parallel to the first direction; the upper cover 10 is provided with an observation hole 100. Preferably, a fastening knob is provided on the upper cover to further ensure the sealing performance of the bin body 1.

[0042] Further, the bin body 1 is also provided with a vacuum pumping hole and an exhaust hole; the vacuum pumping hole is located on one side of the bin body 1; the exhaust hole is located at the top of the bin body 1.

[0043] Further, a water cooling device 14 is installed outside the bin body 1. The water cooling device 14 is fixedly installed on the outer wall of the bin body 1 in an S shape.

[0044] In this article, specific examples are used to elaborate on the principles and implementation manners of the present invention. The descriptions of the above examples are only used to help understand the method and its core idea of the present invention. The above are only the preferred implementation manners of the present invention. It should be noted that due to the limitations of literal expression and objectively existing infinite specific structures, for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. A channel-type vacuum welding furnace, characterized in that : it includes a chamber body (1) and a sealing valve (2); A plurality of groups of the chamber bodies (1) are fixedly connected along a first direction, sealing valves (2) are provided on both sides of the chamber body (1), and a valve hole (20) through which workpieces can pass is provided on the sealing valve (2); A conveying mechanism (11) and a heating structure (12) are installed inside the chamber body (1); The conveying mechanism (11) includes: a driving wheel (110) and a driving motor (111); the driving wheel (110) drives the workpiece to displace along the first direction, and the driving wheel (110) is driven by the driving motor (111); The sealing valve (2) includes a valve body (21); a through valve hole (20) is provided on the valve body (21), and a matching valve plate assembly is provided inside; the valve plate assembly includes a frame body (22) and a valve plate (23); the frame body (22) is slidably installed in the valve body (21) and is driven by a cylinder (210); the valve plate (23) is slidably installed on both sides of the frame body (22) and corresponds to the valve hole (20); a wedge mechanism is further provided between the frame body (22) and the valve plate (23) for driving the valve plate (23) to press tightly on the valve body (21); The chamber body (1) further includes a photoelectric detection device (13), the photoelectric detection device (13) is installed on both sides of the chamber body (2) along a second direction, and the second direction is perpendicular to the first; the photoelectric detection device (13) is connected to the conveying motor (111) and the cylinder (210); Wherein, the wedge mechanism includes a chute located on the valve plate; the chute is arranged along the sliding direction of the frame body (22), and an inclined surface along the length direction is provided at the bottom; a matching sliding column is provided on the frame body (22) corresponding to the chute; the sliding column is located in the chute and is vertically connected to the frame body; A sliding assembly is further provided between the valve plate (23) and the frame body (22); the sliding assembly includes a matching slider and a slide rail; the slider is fixedly installed on the valve plate (23) and has a U-shaped cross section; the slide rail is fixedly installed on the frame body (23) and is arranged along the sliding direction of the frame body (23); a sealing ring is provided around the side of the valve plate (23) away from the frame body (22); the sealing ring is annular and corresponds to the valve hole (20).

2. A channel-type vacuum welding furnace according to claim 1, characterized in that: The heating structure (12) includes a heating plate (120), a lifting device (121) is arranged below the heating plate (120), and the lifting device (121) drives the heating plate (120) to displace along a third direction through a motor drive, and the third direction is perpendicular to the second direction and perpendicular to the first direction.

3. A channel-type vacuum welding furnace according to claim 2, characterized in that: The lifting device (121) includes: a base (130), a support column (131) is provided between the heating plate (120) and the base (131), and the axial direction of the support column (131) is the third direction.

4. A through-type vacuum welding furnace according to claim 1, characterized in that: a hinged upper cover (10) is provided on the chamber body (1), and the direction of the hinge shaft is parallel to the first direction; the upper cover (10) is provided with an observation hole (100).

5. A through-type vacuum welding furnace according to claim 1, characterized in that: the chamber body (1) is further provided with a vacuum pumping hole and an exhaust hole; the vacuum pumping hole is located on one side of the chamber body (1); the exhaust hole is at the top of the chamber body (1).

6. A through-type vacuum welding furnace according to claim 1, characterized in that: a water cooling device (14) is installed outside the chamber body (1), and the water cooling device (14) is fixedly installed on the outer wall of the chamber body (1) in an S shape.

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