CN218169050U

CN218169050U - Ceramic preheating slow-cooling device for vacuum electron beam crawler

Info

Publication number: CN218169050U
Application number: CN202222080138.XU
Authority: CN
Inventors: 任刚; 刘超; 刘飞; 朱少旺; 朱楚杰
Original assignee: Zhejiang Bingpeng Automation Technology Co ltd
Current assignee: Zhejiang Bingpeng Automation Technology Co ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2022-12-30
Anticipated expiration: 2032-08-08

Abstract

The utility model relates to a vacuum electron beam welding technical field relates to a vacuum electron beam track pottery preheats slow cooling device, the utility model discloses a including two sets of track heating element and two sets of clamping components that set up the interval setting in the vacuum chamber, track heating element includes potsherd and heating wire, potsherd surface vertically and horizontally staggered is provided with the recess, the heating wire sets up inside the potsherd, clamping components includes C type piece, guide pillar, clamp plate, spring and lower ejector pin, the guide pillar slides and sets up inside C type piece upper end, the clamp plate is fixed in the guide pillar lower extreme, the spring housing is located the guide pillar lower extreme and is located the holding tank of C type piece, lower ejector pin sets up in C type piece lower extreme inside and down the ejector pin upper end is located the holding tank, and the recess that potsherd surface vertically and horizontally staggered set up cuts apart the potsherd, and the flexibility of the monolithic potsherd after cutting apart is better, can cover the heating along with the part shape, and the heat is difficult for scattering and disappearing, better realizes preheating slow cooling function.

Description

Ceramic preheating slow-cooling device for vacuum electron beam crawler belt

Technical Field

The utility model relates to a vacuum electron beam welding technical field relates to a vacuum electron beam track pottery preheats slow cooling device.

Background

The welding preheating can slow down the cooling speed after welding, can reduce the hardening degree of a welding line and a heat affected zone, improves the crack resistance of a welding joint, can reduce welding stress by preheating, can uniformly and locally preheat or wholly preheat, can reduce the temperature difference between a welding area and a welded workpiece, reduces the welding stress on one hand, reduces the welding strain rate on the other hand, is beneficial to avoiding the generation of welding cracks, can reduce the restraint degree of a welding structure by preheating, and reduces the crack occurrence rate along with the improvement of the preheating temperature.

The traditional heating scheme of electron beam welding adopts external heating, and the specific methods are as follows: furnace heating, flame heating, induction heating, infrared heating, and the like. The prior technical scheme has the problems and the defects that the temperature of a preheated workpiece is higher, and the operation is not favorable; after preheating, auxiliary processes such as workpiece assembly, vacuumizing, welding seam programming and the like are required before welding, the time of the auxiliary processes is different from 20 minutes to 60 minutes, after long-time cooling, the temperature of the workpiece is obviously reduced, and the phenomenon is more prominent due to lower environmental temperature in winter, so that the traditional preheating scheme does not completely meet the requirement of welding preheating, and the traditional heating scheme is outside a vacuum chamber and cannot immediately implement a slow cooling process of the workpiece after welding.

Therefore, in order to solve the defects in the prior art, a ceramic preheating slow cooling device for the vacuum electron beam crawler needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a preheating and slow cooling device for vacuum electron beam caterpillar band ceramics, which solves the problems of the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a vacuum electron beam track pottery preheats slow cooling device is including setting up two sets of track heating element and two sets of clamping components that the interval in the vacuum chamber set up, track heating element includes potsherd and heating wire, potsherd surface vertically and horizontally staggered is provided with the recess, the heating wire sets up inside the potsherd, clamping components includes C type piece, guide pillar, clamp plate, spring and lower ejector pin, the guide pillar slides and sets up inside C type piece upper end, the clamp plate is fixed in the guide pillar lower extreme, the spring housing is located the guide pillar lower extreme and is located the holding tank of C type piece, the ejector pin sets up in the inside and lower ejector pin upper end of C type piece lower extreme and is located the holding tank down, the potsherd is located the holding tank.

In a further improvement, the pressing plate is fixed at the lower end of the guide pillar in a threaded manner.

In a further improvement, the lower ejector rod is connected to the inner part of the lower end of the C-shaped block in a threaded mode.

In a further improvement, the ceramic sheet material is alumina ceramic.

In a further improvement, the electric heating wire material is a nickel-chromium wire.

Compared with the prior art, the utility model discloses vacuum electron beam track pottery preheats slow cooling device's beneficial effect: the crawler heating assemblies cover the corresponding workpieces, a welding space is reserved between the two groups of crawler heating assemblies, the crawler heating assemblies and the workpieces are clamped through the clamping assemblies, the ceramic sheets are divided by the grooves arranged on the surfaces of the ceramic sheets in a criss-cross mode, the divided ceramic sheets are small in size and good in flexibility, can be covered and heated along with the shapes of the parts, heat is not easy to dissipate, and the preheating and slow cooling functions are well achieved; the power collocation degree of freedom is high, can select the heating power of suitable track heating element to the work piece of different plate thicknesses.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic view of the internal structure of the middle crawler heating assembly of the present invention

FIG. 3 is a schematic view of the working structure of the present invention

In the figure, 1-a track heating component, 11-a ceramic plate, 12-a heating wire, 13-a groove, 2-a clamping component,

21-C type block, 211-containing groove, 22-guide post, 23-pressing plate, 24-spring, 25-lower ejector rod, 3-electron gun and 4-vacuum chamber.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solution of the present invention will be further explained with reference to the following embodiments and accompanying drawings 1 to 3.

Example 1

The utility model provides a vacuum electron beam track pottery preheats slow cooling device, is including setting up two sets of track heating element 1 and two sets of clamping component 2 that the interval that sets up in vacuum chamber 4, still is provided with electron gun 3 in the vacuum chamber, track heating element 1 includes ceramic wafer 11 and

heating wire

12, 11 surperficial criss crisscross recesses 13 that are provided with of ceramic wafer, heating wire 12 sets up inside ceramic wafer 11, clamping component 2 includes C type piece 21, guide pillar 22, clamp plate 23, spring 24 and lower ejector pin 25, guide pillar 22 slides and sets up inside C type piece 21 upper end, clamp plate 23 is fixed in the guide pillar 22 lower extreme, guide pillar 22 lower extreme is located in the holding tank 211 of C type piece 21 to spring 24 cover, lower ejector pin 25 sets up inside C type piece 21 lower extreme and lower ejector pin 25 upper end is located holding tank 211, ceramic wafer 11 is located holding tank 211.

As shown in fig. 1-2, the utility model discloses a use principle: cover two sets of track heating element 1 respectively on the work piece that corresponds, set up the interval between two sets of track heating element 1 and reserve welding space, it is tight with track heating element 1 and work piece clamp through clamping component 2, it is concrete, make track heating element 1 and work piece put into holding tank 211 after upwards spurting guide pillar 22, guide pillar 22 moves down under the effect of spring 24, it is tight with work piece clamp to make clamp plate 23 cooperate ejector pin 25 down to take heating element 1, to vacuum chamber 4 evacuation, simultaneously to the circular telegram heating wire 12 circular telegram heating of track heating element 1 inside, ceramic wafer 11 heats up the back and conducts high temperature on being welded the work piece, it accomplishes the stop heating to preheat, then weld through electron gun 3, the welding is accomplished and is heated track heating element 1 inside heating wire 12 once more at last, and then carry out slow cooling to the work piece.

The ceramic plates 11 are divided by the grooves 13 arranged on the surfaces in a criss-cross mode, and the divided single ceramic plates are small in size, good in flexibility and capable of being covered and heated along with the shapes of parts.

Compared with the traditional heating scheme outside the vacuum chamber, the invention has the following advantages:

1. the welding can be immediately carried out after heating is finished, and the phenomenon that the workpiece is cooled due to auxiliary process operation so that the preheating effect is not achieved is avoided;

2. the heating and the vacuumizing are carried out simultaneously, so that the production beat can be shortened;

3. after welding, the workpiece can be heated and slowly cooled immediately, so that joint failure or scrapping caused by cracking of the workpiece due to rapid cooling is avoided;

4. realize the clamping at normal atmospheric temperature, reduce the transport and the clamping degree of difficulty, avoid arousing the scald accident.

Compared with other heating schemes, the invention has the following advantages:

1. the covering type heating is adopted, so that heat is not easy to dissipate, and the preheating and slow cooling functions are better realized;

2. the power collocation degree of freedom is high, can select the track heating element of different heating power to different board thicknesses.

As a further example, the pressing plate 23 is screwed to the lower end of the guide post 22. The fixed connection of the guide post 22 and the pressure plate 23 is facilitated.

As a further example, the lower post rod 25 is screwed to the inside of the lower end of the C-shaped block 21. The length adjustment of the lower mandril 25 in the containing groove 211 is convenient, and the clamping of workpieces with different thicknesses and the track heating assembly 1 is realized by matching the upper end elastic pressing plate 23.

As a further embodiment, the ceramic sheet 11 is made of alumina ceramic. The alumina ceramic is a ceramic material taking alumina as a main body, and the alumina ceramic sheet has higher strength, and has more excellent high temperature resistance, insulating property and heat radiation property.

As a further example, the heating wire 12 is made of nickel chromium wire. The heating wire made of the nickel-chromium wire has high strength in a high-temperature environment, is not easy to deform after long-term high-temperature operation, is not easy to change the structure, has good normal-temperature plasticity, and is simpler to repair after deformation and long in service life.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention by those skilled in the art should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a vacuum electron beam track pottery preheats slow cooling device, its characterized in that, including two sets of track heating element and two sets of clamping component that set up the interval setting in the vacuum chamber, track heating element includes potsherd and heating wire, potsherd surface vertically and horizontally staggered is provided with the recess, the heating wire sets up inside the potsherd, clamping component includes C type piece, guide pillar, clamp plate, spring and lower ejector pin, the guide pillar slides and sets up inside C type piece upper end, the clamp plate is fixed in the guide pillar lower extreme, the guide pillar lower extreme is located and is located the holding tank of C type piece to the spring housing, the ejector pin sets up in C type piece lower extreme inside and the ejector pin upper end is located the holding tank down, the potsherd is located the holding tank.

2. The ceramic preheating and slow cooling device for the vacuum electron beam crawler belt according to claim 1, wherein the pressing plate is screwed on the lower end of the guide pillar.

3. The ceramic preheating and slow cooling device for the vacuum electron beam crawler belt according to claim 1, wherein the lower mandril is in threaded connection with the inner part of the lower end of the C-shaped block.

4. The ceramic preheating and slow cooling device for the vacuum electron beam crawler belt according to claim 1, wherein the ceramic sheet material is alumina ceramic.

5. The ceramic preheating and slow cooling device for the vacuum electron beam crawler belt according to claim 1, wherein the electric heating wire material is nickel-chromium wire.