CN115090993B

CN115090993B - Alloy and ceramic vacuum brazing process observation device

Info

Publication number: CN115090993B
Application number: CN202210780472.8A
Authority: CN
Inventors: 杨云龙; 万梦丹; 陈子安; 丁星; 谢俊祎
Original assignee: Nanchang Institute of Technology
Current assignee: Nanchang Institute of Technology
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2023-05-12
Anticipated expiration: 2042-07-04
Also published as: CN115090993A

Abstract

The invention relates to a vacuum brazing process observation device, in particular to a vacuum brazing process observation device for alloy and ceramic. The device for observing the vacuum brazing process of the alloy and the ceramic, which can check the state of the workpiece in the furnace and is convenient for a worker to adjust the temperature, is provided. An observation device for the vacuum brazing process of alloy and ceramic comprises a mounting frame, a glass plate, a baffle plate and the like; the rear side is connected with the glass board in the installing frame, and installing frame rear portion slidingtype is connected with the baffle, and the baffle is located glass board front side. The installation frame is connected on the vacuum brazing furnace, and after the baffle slides downwards to open, staff can see through the glass plate and observe the inside condition of the vacuum brazing furnace to the staff in time adjusts the temperature, improves the success rate of work piece processing, simultaneously, because the arc can free piece back-and-forth movement, can adjust the staff as required and watch the distance.

Description

Alloy and ceramic vacuum brazing process observation device

Technical Field

The invention relates to a vacuum brazing process observation device, in particular to a vacuum brazing process observation device for alloy and ceramic.

Background

Vacuum brazing refers to heating a processed workpiece in a vacuum chamber, is mainly used for welding products with high required quality and oxidizable materials, and is widely applied to the fields of aviation, aerospace, metallurgy, machinery and the like.

Vacuum brazing is usually carried out in a vacuum brazing furnace, at present, the existing vacuum brazing furnace is fully sealed, in the vacuum brazing process, workers cannot effectively check the internal condition of the vacuum brazing furnace, the state of a processed workpiece cannot be known, the temperature in the furnace cannot be timely adjusted according to the state of the workpiece, and the failure rate of workpiece processing is high.

Therefore, we propose a vacuum brazing process observation device for alloy and ceramic, which can check the state of a workpiece in a furnace and is convenient for a worker to adjust the temperature.

Disclosure of Invention

In order to overcome the defects that the existing vacuum brazing furnaces are all arranged in a fully-closed mode and cannot check the conditions in the furnaces, the technical problem of the invention is that: the device for observing the vacuum brazing process of the alloy and the ceramic, which can check the state of the workpiece in the furnace and is convenient for a worker to adjust the temperature, is provided.

The utility model provides an alloy and ceramic's vacuum brazing process viewing device, includes installing frame, glass board, baffle, moving mechanism and pushing mechanism, and the rear side is connected with the glass board in the installing frame, and the installing frame rear portion slidingtype is connected with the baffle, and the baffle is located the glass board front side, is equipped with the moving mechanism that is used for changing the viewing distance on the installing frame, is equipped with pushing mechanism on the moving mechanism.

In a preferred embodiment of the invention, the moving mechanism comprises sliding blocks, arc plates, first elastic pieces, inserting rods and second elastic pieces, wherein the sliding blocks are symmetrically connected to the upper part of the installation frame in a sliding mode, the arc plates are connected between the left sliding block and the right sliding block, the first elastic pieces are connected between the arc plates and the installation frame, the inserting rods are connected to the sliding blocks in a sliding mode, the upper ends of the inserting rods are inserted into the installation frame, and the second elastic pieces are connected between the inserting rods and the adjacent sliding blocks.

In a preferred embodiment of the invention, the pushing mechanism comprises a sliding rod, a third elastic piece, a contact plate and a first contact block, the left part and the right part of the arc plate are both connected with the sliding rod in a sliding manner, the third elastic piece is connected between the sliding rod and the arc plate, the contact plate is connected at the inner end of the sliding rod, the first contact block is connected at the lower part of the inserted rod, the outer end of the sliding rod is contacted with the adjacent first contact block, and the first contact block is extruded to move downwards in the outward sliding process of the sliding rod.

In a preferred embodiment of the invention, the invention further comprises a telescopic mechanism for driving the baffle plate to slide up and down, the telescopic mechanism comprises a first guide rod, a sliding sleeve, a fourth elastic piece and a connecting rod, the upper parts of the left side and the right side of the installation frame are respectively connected with the first guide rod, the first guide rods are respectively connected with the sliding sleeve in a sliding manner, the fourth elastic piece is respectively connected between the sliding sleeve and the adjacent first guide rod, and the connecting rod is respectively connected between the sliding sleeve and the lower part of the baffle plate in a rotating manner.

In a preferred embodiment of the invention, the cleaning device further comprises a cleaning mechanism for cleaning the glass plate, wherein the cleaning mechanism comprises a vertical rod, a square plate and a sponge block, the rear part of the mounting frame is connected with the vertical rod in a sliding manner, the lower part of the vertical rod is connected with the square plate, and the front side of the square plate is connected with the sponge block which is attached to the glass plate.

In a preferred embodiment of the invention, the invention further comprises a clamping mechanism for fixing the position of the sliding sleeve, the clamping mechanism comprises square blocks, guide rails, a stop block and a fifth elastic piece, the upper sides of the sliding sleeve are respectively connected with the square blocks, the upper front parts of the left side and the right side of the mounting frame are respectively connected with the guide rails, the guide rail is internally and slidably connected with a stop block, the stop block is in contact with an adjacent square block, the stop block is matched with the square block to enable the fourth elastic piece to be in a stretching state, and a fifth elastic piece is connected between the stop block and the adjacent guide rail.

In a preferred embodiment of the invention, the invention further comprises a pulling mechanism for automatically loosening the stop block, the pulling mechanism comprises a second guide rod, a sliding plate, a sixth elastic piece, a second contact block, an L-shaped plate and a vertical plate, the front part of the upper side of the installation frame is symmetrically connected with the second guide rod left and right, the sliding plate is connected between the left and right second guide rods in a sliding mode, the sixth elastic piece is connected between the sliding plate and the second guide rod, the left and right parts of the lower side of the sliding plate are connected with the second contact block, the arc plate moves backwards to be in contact with the second contact block, the left and right parts of the lower side of the sliding plate are connected with the L-shaped plate, the upper side of the stop block is connected with the vertical plate, and the lower part of the L-shaped plate is in contact with the vertical plate.

In a preferred embodiment of the invention, the invention further comprises a rubber pad, and the middle part of the arc-shaped plate is connected with the rubber pad.

The invention has the following advantages: 1. the installation frame is connected on the vacuum brazing furnace, and after the baffle slides downwards to open, staff can see through the glass plate and observe the inside condition of the vacuum brazing furnace to the staff in time adjusts the temperature, improves the success rate of work piece processing, simultaneously, because the arc can free piece back-and-forth movement, can adjust the staff as required and watch the distance.

2. The sliding sleeve can slide back and forth to drive the baffle to slide up and down through the connecting rod, so that a worker can conveniently open or close the baffle.

3. The sponge block moves up and down to wipe the glass plate, so that the phenomenon that staff observe the internal condition of the vacuum brazing furnace due to the fact that the glass plate adheres to stains is avoided.

4. The square block and the stop block are matched to automatically clamp the sliding sleeve, so that the sliding sleeve is more convenient for people to use.

5. The arc moves backward to be in contact with the second contact block, and then the vertical plate is automatically enabled to drive the stop block to slide upwards, so that the stop block can be automatically loosened when the arc moves backward, and the baffle is enabled to slide downwards to be opened.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the mounting frame, glass plate and baffle plate of the present invention.

Fig. 3 is a schematic perspective view of a moving mechanism according to the present invention.

Fig. 4 is a schematic perspective view of the pushing mechanism of the present invention.

Fig. 5 is a schematic perspective view of the telescopic mechanism of the present invention.

Fig. 6 is a schematic perspective view of a wiping mechanism according to the present invention.

Fig. 7 is a schematic perspective view of the clamping mechanism of the present invention.

Fig. 8 is a schematic view of a part of a three-dimensional structure of the clamping mechanism of the present invention.

Fig. 9 is a schematic perspective view of the pulling mechanism of the present invention.

Meaning of reference numerals in the drawings: 1: mounting frame, 2: glass plate, 3: baffle, 4: movement mechanism, 41: slider, 42: arcuate plate, 43: first elastic member, 44: insert rod, 45: second elastic member, 5: pushing mechanism, 51: slide bar, 52: third elastic member, 53: contact plate, 54: first contact block, 6: telescoping mechanism, 61: first guide bar, 62: sliding sleeve, 63: fourth elastic member, 64: connecting rod, 7: wiping mechanism, 71: vertical bar, 72: square plate, 73: sponge block, 8: clamping mechanism, 81: square block, 82: guide rail, 83: stop, 84: fifth elastic member, 9: pulling mechanism, 91: second guide bar, 92: slide plate, 93: sixth elastic member, 94: second contact block, 95: l-shaped plate, 96: riser, 10: and a rubber pad.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

The utility model provides an alloy and ceramic's vacuum brazing process viewing device, as shown in fig. 1-4, including installing frame 1, glass board 2, baffle 3, mobile mechanism 4 and pushing mechanism 5, the rear side is connected with glass board 2 in the installing frame 1, and glass board 2 can supply the staff to observe inside the vacuum brazing furnace, and installing frame 1 rear portion slidingtype is connected with baffle 3, and baffle 3 is located glass board 2 front side, is equipped with mobile mechanism 4 on the installing frame 1, and mobile mechanism 4 can change the viewing distance, is equipped with pushing mechanism 5 on the mobile mechanism 4.

As shown in fig. 1 and 3, the moving mechanism 4 includes a sliding block 41, an arc plate 42, a first elastic member 43, an inserting rod 44 and a second elastic member 45, the upper portion of the installation frame 1 is connected with the sliding block 41 in a laterally symmetrical sliding manner, the arc plate 42 is welded between the left sliding block 41 and the right sliding block 41, the first elastic member 43 is connected between the arc plate 42 and the installation frame 1, the first elastic member 43 is a compression spring, the sliding blocks 41 are all connected with the inserting rod 44 in a sliding manner, the upper ends of the inserting rods 44 are all inserted into the installation frame 1, the inserting rods 44 are all connected with the second elastic members 45 between the adjacent sliding blocks 41, and the second elastic members 45 are extension springs.

As shown in fig. 1 and 4, the pushing mechanism 5 includes a sliding rod 51, a third elastic member 52, a contact plate 53 and a first contact block 54, the left and right parts of the arc plate 42 are both connected with the sliding rod 51 in a sliding manner, the third elastic member 52 is connected between the sliding rod 51 and the arc plate 42, the third elastic member 52 is a compression spring, the inner end of the sliding rod 51 is connected with the contact plate 53, the lower part of the inserting rod 44 is welded with the first contact block 54, the outer end of the sliding rod 51 is contacted with the adjacent first contact block 54, and the first contact block 54 is extruded to move downwards in the process of sliding the sliding rod 51 outwards.

As shown in fig. 4, a rubber pad 10 is further included, and the middle part of the arc-shaped plate 42 is connected with the rubber pad 10.

When the device is used, a worker connects the rear side of the mounting frame 1 on the vacuum brazing furnace, in the vacuum brazing process, when the condition in the vacuum brazing furnace needs to be observed, the worker pulls the baffle plate 3 to slide downwards to open, then the worker head moves backwards from front to contact with the arc plate 42, the rubber pad 10 can improve the comfort of the worker, the worker head moves backwards and simultaneously presses the contact plate 53 to move outwards, the contact plate 53 moves outwards to drive the slide rod 51 to slide outwards, the third elastic piece 52 deforms, the slide rod 51 slides outwards to press the first contact block 54 to move downwards, the first contact block 54 moves downwards to drive the inserted rod 44 to slide downwards and not insert the mounting frame 1 any more, the second elastic piece 45 deforms, at the moment, the worker can continue to press the arc plate 42 to move backwards, the first elastic piece 43 deforms, when the arc-shaped plate 42 moves backwards to drive the sliding block 41 to slide backwards, and when the arc-shaped plate 42 moves backwards to a proper position, a worker can conveniently observe, the worker can slightly loosen the head and does not press the contact plate 53 any more, at the moment, under the action of resetting of the third elastic piece 52, the sliding rod 51 drives the contact plate 53 to move inwards, the sliding rod 51 moves inwards and does not press the first contact block 54 any more, at the moment, under the action of resetting of the second elastic piece 45, the inserting rod 44 slides upwards to reset and insert into the mounting frame 1, the position of the arc-shaped plate 42 is fixed through the sliding block 41, at the moment, the worker can see the condition in the vacuum brazing furnace through the glass plate 2, so that the temperature in the furnace can be adjusted in time according to the condition of a workpiece, when observation is not needed, the inserting rod 44 is pulled downwards to slide so as not to clamp the mounting frame 1 any more, at the moment, under the action of resetting of the first elastic piece 43, the arc-shaped plate 42 drives the sliding block 41 to slide forward to reset, and then the worker pushes the baffle plate 3 to slide upwards to block the glass plate 2, so that the condition in the vacuum brazing furnace can be observed, and meanwhile, the observation distance can be adjusted as required.

Example 2

On the basis of embodiment 1, as shown in fig. 1 and 5, the device further comprises a telescopic mechanism 6, the telescopic mechanism 6 can drive the baffle plate 3 to slide up and down, the telescopic mechanism 6 comprises a first guide rod 61, a sliding sleeve 62, a fourth elastic piece 63 and a connecting rod 64, the upper parts of the left side and the right side of the installation frame 1 are welded with the first guide rod 61, the sliding sleeve 62 is connected to the first guide rod 61 in a sliding manner, the fourth elastic piece 63 is connected between the sliding sleeve 62 and the adjacent first guide rod 61, the fourth elastic piece 63 is an extension spring, and the connecting rod 64 is connected between the sliding sleeve 62 and the lower part of the baffle plate 3 in a rotating manner.

When the device is used, the initial state of the fourth elastic piece 63 is a stretching state, a worker releases the sliding sleeve 62 by fixing the position of the sliding sleeve 62 according to the requirement of observing the condition in the vacuum brazing furnace, the sliding sleeve 62 slides backwards along with the reset effect of the fourth elastic piece 63, the sliding sleeve 62 slides backwards to push the baffle 3 to slide downwards to be opened through the connecting rod 64, after the device is used, the worker pulls the sliding sleeve 62 to slide forwards, the fourth elastic piece 63 deforms, the sliding sleeve 62 slides forwards to pull the baffle 3 to slide upwards to block the glass plate 2 through the connecting rod 64, and then the worker fixes the position of the sliding sleeve 62 through a tool, so that the baffle 3 can be opened by the worker more conveniently.

As shown in fig. 1 and 6, the glass plate cleaning device further comprises a wiping mechanism 7, the wiping mechanism 7 can clean the glass plate 2, the wiping mechanism 7 comprises a vertical rod 71, a square plate 72 and a sponge block 73, the rear part of the mounting frame 1 is connected with the vertical rod 71 in a sliding mode, the square plate 72 is welded at the lower part of the vertical rod 71, the sponge block 73 is connected with the front side of the square plate 72, and the sponge block 73 is attached to the glass plate 2.

When the device is used, a worker pulls the vertical rod 71 to slide up and down, the vertical rod 71 slides up and down to drive the square plate 72 to move up and down, the square plate 72 moves up and down to drive the sponge block 73 to move up and down to wipe the glass plate 2, and the phenomenon that the adhesion stains of the glass plate 2 influence the worker to watch the inside condition of the vacuum brazing furnace is avoided.

As shown in fig. 1, 7 and 8, the clamping mechanism 8 is further included, the clamping mechanism 8 can fix the position of the sliding sleeve 62, the clamping mechanism 8 includes a square block 81, a guide rail 82, a stop 83 and a fifth elastic element 84, the square block 81 is welded on the upper side of the sliding sleeve 62, the guide rail 82 is welded on the upper front portions of the left side and the right side of the mounting frame 1, the stop 83 is slidably connected in the guide rail 82, the rear side of the stop 83 is obliquely arranged, the stop 83 is in contact with the adjacent square block 81, the stop 83 is matched with the square block 81 to enable the fourth elastic element 63 to be in a stretched state, the fifth elastic element 84 is connected between the stop 83 and the adjacent guide rail 82, and the fifth elastic element 84 is a compression spring.

When the baffle 3 needs to be controlled to slide downwards and open, a worker pulls the baffle 83 to slide upwards, the fifth elastic piece 84 deforms, the baffle 83 slides upwards and then does not block the square block 81, at this time, under the action of resetting of the fourth elastic piece 63, the sliding sleeve 62 slides backwards along with the baffle 3 to slide downwards and open, then the worker releases the baffle 83, under the action of resetting of the fifth elastic piece 84, the baffle 83 slides downwards and resets along with the baffle 83, when the baffle 3 needs to be controlled to slide upwards and close, the sliding sleeve 62 slides forwards and simultaneously drives the square block 81 to move forwards, when the square block 81 moves forwards to be in contact with the baffle 83, the square block 81 continues to move forwards to press the baffle 83 to slide upwards, the fifth elastic piece 84 deforms, and after the square block 81 moves forwards to be separated from the baffle 83, the baffle 83 slides downwards and resets along with the action of resetting of the fifth elastic piece 84, so that the baffle 83 clamps the square block 81, and then the position of the sliding sleeve 62 is fixed, and thus the position of the sliding sleeve 62 can be automatically fixed.

As shown in fig. 1 and 9, the automatic release device further comprises a pulling mechanism 9, the pulling mechanism 9 can automatically release the stop block 83, the pulling mechanism 9 comprises a second guide rod 91, a sliding plate 92, a sixth elastic piece 93, a second contact block 94, an L-shaped plate 95 and a vertical plate 96, the second guide rod 91 is welded on the front part of the upper side of the installation frame 1 in a bilateral symmetry manner, the sliding plate 92 is connected between the left second guide rod 91 and the right second guide rod 91 in a sliding manner, the sixth elastic piece 93 is a compression spring, the second contact block 94 is welded on the left and right parts of the lower side of the sliding plate 92, the lower part of the second contact block 94 is obliquely arranged, the arc-shaped plate 42 moves backwards to be in contact with the second contact block 94, the L-shaped plate 95 is welded on the left and right parts of the lower side of the sliding plate 92, the L-shaped plate 95 is positioned on the outer side of the second contact block 94, the vertical plate 96 is welded on the upper side of the stop block 83, and the lower part of the L-shaped plate 95 is in contact with the vertical plate 96.

When the device is used, when the arc plate 42 moves backwards to be in contact with the second contact block 94, the arc plate 42 continuously moves backwards to press the second contact block 94 to move upwards, the second contact block 94 moves upwards to drive the sliding plate 92 to slide upwards on the second guide rod 91, the sixth elastic piece 93 is deformed, the sliding plate 92 moves upwards to drive the L-shaped plate 95 to move upwards, the L-shaped plate 95 moves upwards to pull the vertical plate 96 to move upwards, the vertical plate 96 moves upwards to drive the stop block 83 to slide upwards to loosen the square block 81, the baffle plate 3 slides downwards to be opened, when the arc plate 42 moves backwards to be separated from the second contact block 94, under the action of reset of the sixth elastic piece 93, the sliding plate 92 moves downwards to drive the second contact block 94 to move downwards to reset, the sliding plate 92 moves downwards to drive the L-shaped plate 95 to move downwards, and then the stop block 83 slides downwards to reset to drive the vertical plate 96 to move downwards to reset, and therefore the baffle plate 3 can be automatically released when the arc plate 42 moves backwards to be opened.

While the present disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. The scope of the disclosure should, therefore, not be limited to the above-described embodiments, but should be determined not only by the following claims, but also by the equivalents of the following claims.

Claims

1. An observation device for the vacuum brazing process of alloy and ceramic is characterized in that: the glass plate comprises a mounting frame (1), a glass plate (2), a baffle plate (3), a moving mechanism (4) and a pushing mechanism (5), wherein the rear side in the mounting frame (1) is connected with the glass plate (2), the rear part of the mounting frame (1) is connected with the baffle plate (3) in a sliding manner, the baffle plate (3) is positioned at the front side of the glass plate (2), the moving mechanism (4) for changing the watching distance is arranged on the mounting frame (1), and the pushing mechanism (5) is arranged on the moving mechanism (4);

the moving mechanism (4) comprises sliding blocks (41), arc-shaped plates (42), first elastic pieces (43), inserting rods (44) and second elastic pieces (45), wherein the sliding blocks (41) are symmetrically connected to the upper portion of the installation frame (1) in a sliding mode, the arc-shaped plates (42) are connected between the left sliding blocks and the right sliding blocks (41), the first elastic pieces (43) are connected between the arc-shaped plates (42) and the installation frame (1), the inserting rods (44) are connected to the sliding blocks (41) in a sliding mode, the upper ends of the inserting rods (44) are inserted into the installation frame (1), and the second elastic pieces (45) are connected between the inserting rods (44) and the adjacent sliding blocks (41);

the pushing mechanism (5) comprises a sliding rod (51), a third elastic piece (52), a contact plate (53) and a first contact block (54), wherein the left part and the right part of the arc plate (42) are connected with the sliding rod (51) in a sliding mode, the third elastic piece (52) is connected between the sliding rod (51) and the arc plate (42), the contact plate (53) is connected at the inner end of the sliding rod (51), the first contact block (54) is connected at the lower part of the inserting rod (44), the outer end of the sliding rod (51) is contacted with the adjacent first contact block (54), and the first contact block (54) is extruded to move downwards in the outward sliding process of the sliding rod (51);

the device comprises a baffle plate (3), and is characterized by further comprising a telescopic mechanism (6) for driving the baffle plate (3) to slide up and down, wherein the telescopic mechanism (6) comprises a first guide rod (61), a sliding sleeve (62), a fourth elastic piece (63) and a connecting rod (64), the upper parts of the left side and the right side of the mounting frame (1) are respectively connected with the first guide rod (61), the first guide rods (61) are respectively connected with the sliding sleeve (62) in a sliding manner, the fourth elastic piece (63) is respectively connected between the sliding sleeve (62) and the adjacent first guide rod (61), and the connecting rod (64) is respectively connected between the sliding sleeve (62) and the lower part of the baffle plate (3) in a rotating manner;

the cleaning device is characterized by further comprising a wiping mechanism (7) for cleaning the glass plate (2), wherein the wiping mechanism (7) comprises a vertical rod (71), a square plate (72) and a sponge block (73), the rear part of the mounting frame (1) is connected with the vertical rod (71) in a sliding mode, the lower part of the vertical rod (71) is connected with the square plate (72), the front side of the square plate (72) is connected with the sponge block (73), and the sponge block (73) is attached to the glass plate (2);

the automatic release device is characterized by further comprising a pulling mechanism (9) for automatically releasing the stop blocks (83), wherein the pulling mechanism (9) comprises a second guide rod (91), a sliding plate (92), a sixth elastic piece (93), a second contact block (94), L-shaped plates (95) and vertical plates (96), the second guide rod (91) is symmetrically connected to the front part of the upper side of the installation frame (1), the sliding plate (92) is connected between the left second guide rod and the right second guide rod (91), the sixth elastic piece (93) is connected between the sliding plate (92) and the second guide rod (91), the second contact block (94) is connected to the left and right parts of the lower side of the sliding plate (92), the arc-shaped plates (42) move backwards to be in contact with the second contact block (94), the L-shaped plates (95) are connected to the left and right parts of the lower side of the sliding plate (92), the upper side of the stop blocks (83) are connected to the vertical plates (96), and the lower parts of the L-shaped plates (95) are contacted with the vertical plates (96).

2. A device for observing a vacuum brazing process of an alloy and a ceramic according to claim 1, wherein: still including chucking mechanism (8) that are used for fixed sliding sleeve (62) position, chucking mechanism (8) are including square piece (81), guide rail (82), dog (83) and fifth elastic component (84), sliding sleeve (62) upside all is connected with square piece (81), the upper front portion of installing frame (1) left and right sides all is connected with guide rail (82), all sliding connection has dog (83) in guide rail (82), dog (83) all contact with adjacent square piece (81), dog (83) and square piece (81) cooperation make fourth elastic component (63) be in tensile state, all be connected with fifth elastic component (84) between dog (83) and adjacent guide rail (82).

3. A device for observing a vacuum brazing process of an alloy and a ceramic according to claim 1, wherein: the novel rubber pad is characterized by further comprising a rubber pad (10), and the middle part of the arc-shaped plate (42) is connected with the rubber pad (10).