CN219597882U - Vacuum hot-press forming device for metal composite plate - Google Patents

Abstract

The utility model discloses a vacuum hot-press forming device for a metal composite plate, which comprises a frame, wherein: the top of the frame is provided with a workbench for accommodating the heating device and installing the die; the two sides of the top of the workbench are correspondingly provided with sliding devices for controlling the pressing plate to horizontally slide, and the top of the sliding devices is fixedly provided with a mounting plate for mounting the pressing device; the bottom of the pressing plate is provided with a vacuum cover, and the vacuum cover can move downwards to be combined with the workbench to form a sealing space for the sealing heating device and the die; according to the utility model, through the arrangement of the vacuum device, after the pneumatic clamping device clamps and fixes the vacuum cover, the vacuum device can completely exhaust air in the sealed space, so that the effect of vacuumizing the sealed space is achieved, the material to be hot-pressed and formed can be hot-pressed and formed in a vacuum environment, the composite board can be quickly solidified and formed, the forming speed of the composite board is further improved, and the production efficiency is effectively improved.

Description

Vacuum hot-press forming device for metal composite plate

Technical Field

The utility model belongs to the technical field of hot pressing, and particularly relates to a vacuum hot-press forming device for a metal composite plate.

Background

The metal composite board is a composite board formed by coating one layer of metal with another metal, so that the effects of saving resources and reducing cost are achieved on the premise of not reducing the using effect (corrosion resistance, mechanical strength and the like).

The composite board is produced through explosion compounding, explosion rolling compounding, hot pressing compounding, etc. and is used mainly in anticorrosion, pressure container manufacture, electric building, petrochemical, medicine, light industry, automobile, etc.

The hot pressing principle is a thermal principle, and the deformation problem of the composite board can be solved due to the large pressure, low temperature and short pressing time, so that the deformation degree of the composite board is greatly reduced.

In the prior art, most of the existing composite board hot-press forming devices cannot perform hot-press in a vacuum environment, so that the hot-press forming speed of the composite board is low, and the production speed of the composite board is low, so that the overall production efficiency is affected.

Disclosure of Invention

The utility model aims to provide a vacuum hot-press forming device for a metal composite plate, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a metal composite panel vacuum hot press forming device, comprising a frame, wherein:

the top of the frame is provided with a workbench for accommodating the heating device and the die for installation, and the bottom of the frame is provided with an adjustable supporting device for supporting the frame;

the two sides of the top of the workbench are correspondingly provided with sliding devices for controlling the pressing plate to horizontally slide, and the top of the sliding devices is fixedly provided with a mounting plate for mounting the pressing device;

the bottom of the pressing plate is provided with a vacuum cover, and the vacuum cover can move downwards to be combined with the workbench to form a sealing space for the sealing heating device and the die;

a sealing device for sealing the sealing space is arranged between the vacuum cover and the workbench, and a pneumatic clamping device for clamping the vacuum cover is arranged on the workbench;

and a vacuum device is arranged at the bottom of the workbench corresponding to the sealing space.

Preferably, the heating device comprises a heating head arranged around the die, and an electric heating pipe extending outwards is arranged on the heating head.

Preferably, the die comprises a lower die arranged at the top of the workbench and an upper die arranged corresponding to the lower die; a containing cavity for containing the material to be hot-pressed is formed in the lower die, and a pressing block corresponding to the containing cavity is arranged at the end, facing the lower die, of the upper die; the upper die is arranged at the bottom of the pressing plate through the connecting piece, and can be used for carrying out hot press forming on the material to be hot pressed in the accommodating cavity under the drive of the pressing plate.

Preferably, the adjustable supporting device comprises a supporting frame arranged at the bottom side of the frame, and the supporting frame is connected with the supporting feet through supporting bolts; the support frame is provided with a support hole for accommodating the support bolt to pass through, and the support bolt is connected with a support nut in a threaded manner.

Preferably, the sliding device comprises upright posts correspondingly arranged on two sides of the top of the workbench, and the upright posts are provided with movable bushings used for being connected with the pressing plate.

Preferably, the pressing device comprises a cylinder arranged at the top of the mounting plate, and the output end of the cylinder is connected with the connecting block through a joint; the connecting block is fixedly connected with the cross reinforcing rib fixedly arranged at the top of the pressing plate.

Preferably, the sealing device comprises a sealing groove arranged at the top of the workbench, and a rubber strip is arranged in the sealing groove; and a sealing strip which fully covers the sealing groove is arranged at the bottom of the vacuum cover.

Preferably, the pneumatic clamping device comprises clamping seats correspondingly arranged on two sides of the top of the workbench, and clamping heads for clamping the side edges of the vacuum cover are arranged on the clamping seats.

Preferably, the vacuum device comprises a vacuum pump arranged at the bottom of the workbench, and the input end of the vacuum pump is communicated with the sealed space through a connecting pipe.

Preferably, a vacuum heat-insulating layer is arranged inside the vacuum cover.

The utility model has the technical effects and advantages that the vacuum hot-press forming device for the metal composite plate comprises:

1. through the arrangement of the vacuum device, after the pneumatic clamping device clamps and fixes the vacuum cover, the vacuum device can completely exhaust the air in the sealed space, so that the effect of vacuumizing the sealed space is achieved, the material to be hot-pressed and formed can be hot-pressed and formed in a vacuum environment, the composite board can be quickly solidified and formed, the forming speed of the composite board is further improved, the production time can be reduced, and the production efficiency is effectively improved;

2. through the arrangement of the sliding device, the sliding device can limit the pressing plate, so that the pressing plate can horizontally ascend or descend relative to the workbench, the pressing plate can horizontally slide relative to the workbench through the upright post, the pressing plate can move up and down more stably, the stroke process of an upper die at the bottom of the pressing plate can be further limited, the upper die and the lower die can be limited when being clamped, the stroke of the upper die is stable, and the precision of hot press forming of a product can be greatly improved;

3. through the arrangement of the sealing device, the connection part of the vacuum cover and the workbench can be tightly connected, the sealing space inside the vacuum cover can be effectively sealed, the better vacuum effect on the sealing space is achieved, the air tightness of the sealing space can be ensured, the loss of hot air generated by heating can be effectively prevented, and the heating effect is not influenced;

4. through setting up heating device circumference array around the mould periphery, can make the mould be heated evenly, the material that waits hot briquetting in the messenger mould is heated evenly to be favorable to waiting the quick heat conduction of hot briquetting material in the mould, can improve heating efficiency, reduce heating time, improve work efficiency.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the vacuum enclosure of the present utility model when it is lowered;

FIG. 3 is a schematic view showing the structure of the vacuum hood of the present utility model when it is lifted;

fig. 4 is a schematic diagram showing a specific structure of the mold according to the present utility model.

In the figure:

1. a frame; 2. a heating device; 3. a mold; 4. an adjustable support device; 5. a sliding device; 6. a pressing device; 7. a sealing device; 8. a pneumatic clamping device; 9. a vacuum device;

11. a work table; 12. a mounting plate; 13. a vacuum cover; 14. a vacuum heat-insulating layer; 15. sealing the space; 16. a pressing plate; 17. cross reinforcing ribs;

21. a heating head; 22. an electric heating tube;

31. a lower die; 32. an upper die; 33. a receiving chamber; 34. briquetting; 35. a connecting piece;

41. a support frame; 42. a support bolt; 43. supporting feet; 44. a support hole; 45. a support nut;

51. a column; 52. Moving the bushing;

61. a cylinder; 62. A joint; 63. A connecting block;

71. sealing grooves; 72. A rubber strip; 73. A sealing strip;

81. a clamping seat; 82. A clamping head;

91. a vacuum pump; 92. and (5) connecting pipes.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a vacuum hot press forming device for a metal composite plate, as shown in fig. 1-4, comprising a frame 1, wherein:

the top of the frame 1 is provided with a workbench 11 for accommodating the heating device 2 and the die 3 for installation, and the bottom of the frame 1 is provided with an adjustable supporting device 4 for supporting the frame 1, and the frame 1 can be supported through the arrangement of the adjustable supporting device 4, so that the stability of the whole structure is better.

The two sides of the top of the workbench 11 are correspondingly provided with the sliding devices 5 for controlling the pressing plate 16 to horizontally slide, the top of the sliding devices 5 is fixedly provided with the mounting plate 12 for mounting the pressing device 6, the pressing plate 16 can horizontally slide relative to the workbench 11 through the sliding devices 5, and the pressing plate 16 can be moved more stably by utilizing the sliding devices 5, so that the quality of a final product of a material to be hot-pressed can be further improved.

The bottom of the pressing plate 16 is provided with a vacuum cover 13, and the vacuum cover 13 can move downwards to be combined with the workbench 11 to form a sealing space 15 for sealing the heating device 2 and the die 3.

A sealing device 7 for sealing the sealing space 15 is arranged between the vacuum cover 13 and the workbench 11, and a pneumatic clamping device 8 for clamping the vacuum cover 13 is arranged on the workbench 11, wherein the pneumatic clamping device 8 can effectively fix the vacuum cover 13.

The vacuum device 9 is arranged at the bottom of the workbench 11 corresponding to the sealing space 15, so that the pressing plate 16 can horizontally slide relative to the workbench 11 through the sliding device 5, the sliding device 5 is utilized to enable the pressing plate 16 to move more stably, and the quality of a final product of a material to be hot-pressed can be further improved.

The heating device 2 comprises a heating head 21 arranged around the die 3, the heating head 21 is provided with an electric heating pipe 22 extending outwards, the heating head 21 adopts a standard part, and the electric heating pipes 22 with different specifications can be arranged on the heating head 21 of the standard part according to different heating requirements, so that the electric heating pipe 22 can be fixed by only installing the electric heating pipe 22 on the heating head 21.

In the present utility model, the heating means 2 is circumferentially arranged around the periphery of the die 3, and an insulating jacket may be installed outside the electric heating pipe 22 as needed.

Specifically, the mold 3 includes a lower mold 31 disposed on top of the table 11 and an upper mold 32 disposed corresponding to the lower mold 31, and the upper mold 32 and the lower mold 31 are parallel to each other.

The lower die 31 is internally provided with a containing cavity 33 for containing the material to be hot-pressed and formed, the containing cavity 33 extends inwards from the surface of the lower die 31, the limit of the material to be hot-pressed and formed is realized, the upper die 32 is provided with a pressing block 34 corresponding to the containing cavity 33 towards the end of the lower die 31, the pressing block 34 and the containing cavity 33 are correspondingly arranged, the pressing block 34 can be pressed down and clamped into the containing cavity 33, and the material to be hot-pressed and formed in the containing cavity 33 is subjected to hot-press forming treatment.

The upper die 32 is arranged at the bottom of the pressing plate 16 through the connecting piece 35, the connecting piece 35 can be a fixed screw, the lower die 31 can also be a fixed screw to be fixedly arranged at the top of the workbench 11, the upper die 32 and the lower die 31 are fixed through the fixed screw, the upper die 32 and the lower die 31 are detachably connected through the fixed screw, the dies 3 with different sizes can be installed, further, the plates with different sizes are pressed, and the utilization rate of the plates is improved.

Moreover, by detaching the fixing screws, the upper die 32 and the lower die 31 can be completely separated from the pressing plate 16 and the table 11, thereby achieving the effect of rapidly detaching the die 3, and the die 3 can be maintained or replaced.

The upper die 32 can carry out hot press forming on the material to be hot pressed in the accommodating cavity 33 under the driving of the pressing plate 16, the pressing plate 16 is driven to descend through the air cylinder 61, the pressing plate 16 can synchronously drive the upper die 32 to descend, the pressing block 34 arranged on the upper die 32 can be pressed into the accommodating cavity 33 of the lower die 31, the pressing block 34 arranged on the upper die 32 applies pressure on the material to be hot pressed in the accommodating cavity 33, and the material to be hot pressed is extruded through the mutual matching of the pressing block 34 and the accommodating cavity 33, so that the effect of hot press forming is achieved.

In the utility model, a temperature measuring piece can be further arranged, and the temperature measuring piece can detect the heating temperature of the die 3 so as to ensure the sintering effect of the material to be hot-pressed in the die 3, so that the heating temperature of the die 3 is not too high or too low, and further the sintering quality of the material to be hot-pressed in the die 3 is ensured.

In the utility model, the temperature measuring piece can adopt a thermocouple, the thermocouple can be arranged in the die 3, the heating temperature of the die 3 can be rapidly detected, and the sintering quality of the material to be hot-pressed in the die 3 is ensured; and, the temperature measuring piece also can adopt the infrared detection head, and the infrared detection head needs to be installed in vacuum cover 13 outside, through setting up transparent glass mouth on furnace vacuum cover 13, the infrared detection head detects through transparent glass mouth the heating temperature that mould 3 received, guarantees the sintering quality of waiting hot briquetting material in the mould 3.

Specifically, the adjustable supporting device 4 includes a supporting frame 41 disposed at the bottom side of the frame 1, and the supporting frame 41 is connected with a supporting leg 43 through a supporting bolt 42, and the supporting leg 43 can be connected with the supporting frame 41 through the supporting bolt 42, so that the supporting leg 43 can be separated from the bottom of the frame 1 by disassembling the supporting bolt 42, and the supporting leg 43 is convenient to disassemble, transport and assemble.

In the utility model, the number of the supporting frames 41 is 2, the number of the 2 supporting frames 41 is relatively arranged at two sides of the bottom side of the frame 1, the number of the supporting legs 43 is 4, the 2 supporting legs 43 are in a group, the 2 supporting legs 43 in the same group are respectively arranged at two sides of the same supporting frame 41, thus the 4 supporting legs 43 can be positioned at four corners of the bottom side of the frame 1, and the frame 1 can be supported by the arrangement of the supporting legs 43, so that the stability of the whole structure is better.

The support frame 41 is provided with a support hole 44 for accommodating the support bolt 42 to pass through, the support bolt 42 is connected with a support nut 45 in a threaded manner, the support nut 45 is connected with the support bolt 42 in a threaded manner, the relative position between the support nut 45 and the support bolt 42 is changed by rotating the support nut 45, threads are arranged at the top of the support bolt 42, the support nut 45 is connected with the support bolt through the threads on the support bolt 42 in an adjustable manner, the support nut 45 can be screwed in or screwed out through rotating the support nut 45 in the opposite direction, the effect of adjusting the relative position between the support nut 45 and the support nut 45 is achieved, support adjustment can be carried out, the effect of adapting to installation positions with different heights is achieved, and better support effect can be achieved.

Specifically, the sliding device 5 includes upright posts 51 correspondingly disposed on two sides of the top of the workbench 11, and through the arrangement of the upright posts 51, the effect of limiting the pressing plate 16 can be achieved, so that the pressing plate 16 can horizontally ascend or descend relative to the workbench 11, and the pressing plate 16 can horizontally slide relative to the workbench 11 through the upright posts 51.

The column 51 is provided with a movable bush 52 for connecting to the platen 16, and the platen 16 is prevented from being separated from the column 51 by providing the movable bush 52 at each end of the platen 16.

In the present utility model, since the platen 16 is provided with the hole for receiving the post 51 therethrough, the moving bush 52 is in interference fit with the hole of the platen 16, and the moving bush 52 is in clearance fit with the post 51, so that the platen 16 is not affected to slide relative to the post 51.

Also, since abrasion of the parts is caused by long-term abrasion, a material having a low hardness and a high abrasion resistance is selected as the moving bushing 52, so that abrasion can be reduced.

In the utility model, the movable bushing 52 can be made of corrosion-resistant materials such as polytetrafluoroethylene or graphite, so that the movable bushing 52 can be conveniently replaced due to sliding abrasion of the anti-falling bushing, and the protection effect can be achieved only by replacing the movable bushing 52, so that the replacement cost of parts is low, and the service life of the device can be prolonged.

Specifically, the pressing device 6 includes an air cylinder 61 disposed at the top of the mounting plate 12, and the output end of the air cylinder 61 is connected with a connecting block 63 through a joint 62, and the output end of the air cylinder 61 is connected with the top of the pressing plate 16 through the joint 62 and the connecting block 63, the air cylinder 61 can provide pressing and lifting force, the pressing plate 16 can be driven to rise or fall through the air cylinder 61, and the pressing plate 16 can synchronously drive the upper die 32 and the lower die 31 to extrude or separate from each other, so as to achieve the effect of performing hot press forming on the hot press forming material in the accommodating cavity 33 of the lower die 31.

And, by the extension and shortening of the cylinder 61, the rapid hot press forming is facilitated, and the physical strength of workers and the time of hot press forming are saved.

The connecting block 63 is fixedly connected with the cross reinforcing rib fixedly arranged at the top of the pressing plate 16, and the cross reinforcing rib is arranged at the top of the pressing plate 16 and connected with the connecting block 63, so that the strength of the top of the pressing plate 16 can be enhanced, the pressure of the air cylinder 61 can be dispersed, and the connecting block 63 is prevented from being deformed due to overlarge pressure of the air cylinder 61.

Specifically, the sealing device 7 includes a sealing groove 71 disposed at the top of the workbench 11, and a rubber strip 72 is disposed in the sealing groove 71, where the rubber strip 72 can be elastically deformed under external force, and when the vacuum cover 13 is pressed down to the position of the sealing groove 71, the rubber strip 72 is greatly deformed under external force, so that the sealing space 15 inside the vacuum cover 13 can be effectively sealed.

The bottom of the vacuum cover 13 is provided with the sealing strip 73 which fully covers the sealing groove 71, the width of the sealing strip 73 is larger than that of the sealing groove 71, and therefore the sealing strip 73 can further seal the position of the sealing groove 71, and a better vacuum effect on the sealing space 15 is achieved.

Specifically, the pneumatic clamping device 8 includes clamping seats 81 correspondingly disposed on two sides of the top of the workbench 11, and clamping heads 82 for clamping the sides of the vacuum cover 13 are disposed on the clamping seats 81, and the clamping heads 82 can be attached to the outer surface of the vacuum cover 13 and can be used for fixing the vacuum cover 13 through the clamping heads 82.

In the utility model, the anti-slip pad is arranged at one end of the clamping head 82 facing the vacuum cover 13, and the friction between the clamping head 82 and the vacuum cover 13 can be increased by additionally arranging the anti-slip pad on the surface of the clamping head 82.

In addition, in the present utility model, since the clamping head 82 is made of a rigid material, the anti-slip pad is made of a flexible material, in practice, if the clamping head 82 is made of a rigid material, the clamping will be inevitably unstable, and if the clamping force of the clamping head 82 is increased, the surface of the vacuum cover 13 will be damaged by the rigid clamping head 82, and the installation quality will be affected.

In order to solve the above problem, an anti-slip pad made of flexible material is disposed at the contact portion between the clamping head 82 and the vacuum cover 13, and the anti-slip pad may be made of rubber material, so that when the vacuum cover 13 is clamped, the anti-slip pad may be wrapped on the outer surface of the clamping head 82, so that the clamping force of the clamping head 82 is uniform and the outer surface of the vacuum cover 13 is not damaged when the clamping force is large.

Specifically, the vacuum device 9 includes a vacuum pump 91 disposed at the bottom of the workbench 11, and the input end of the vacuum pump 91 is communicated with the sealed space 15 through a connecting pipe, a reserved flange hole is disposed in the sealed space 15, the vacuum device can be quickly connected with the connecting pipe through the reserved flange hole, and air in the sealed space 15 can be completely discharged through the vacuum pump 91, so that the effect of vacuumizing the sealed space 15 is achieved.

Specifically, the vacuum cover 13 is internally provided with the vacuum heat-insulating layer 14, the vacuum heat-insulating layer 14 is arranged on the inner wall of the vacuum cover 13, and the arrangement of the vacuum heat-insulating layer 14 is used for preventing the temperature exchange between the sealed space 15 and the outside, so that the temperature loss caused by the direct contact between the sealed space 15 and the vacuum cover 13 can be avoided.

In the present utility model, the vacuum insulation layer 14 is filled with an insulation material, which may be foamed polyethylene, foamed plastic, cotton or other insulation gas.

In one embodiment of the utility model, the foamed polyethylene can be used as a filled heat-insulating material, is an environment-friendly green material, has no pollution to the environment, can be in an invisible condition due to the sealing arrangement of the vacuum heat-insulating layer 14, has no degradation under the invisible condition, has long service life, has good heat-insulating effect, and can effectively prevent the exchange of transduction and the outside temperature.

In the utility model, the vacuum cover 13 can be provided with the glass port, and the forming process of the section bar to be hot-pressed can be conveniently monitored by an operator through the arrangement of the glass port.

Working principle, this metal clad plate vacuum hot briquetting device is when using:

firstly, according to the hot press molding requirement of a plate, a die 3 with a determined size is selected, a lower die 31 is fixedly arranged at the top of a workbench 11 by adopting a fixed screw, and then an upper die 32 is fixedly arranged at the bottom of a pressing plate 16 by a connecting piece 35.

Then, the material to be hot-pressed is placed in the accommodating cavity 33 of the lower die 31, then the air cylinder 61 is started, the air cylinder 61 enables the pressing plate 16 to horizontally descend relative to the workbench 11 through the upright post 51, the vacuum cover 13 arranged below the workbench 11 descends synchronously, at this time, the vacuum cover 13 and the workbench 11 are mutually combined to form a sealing space 15 for sealing the heating device 2 and the die 3, and the sealing space 15 is sealed between the vacuum cover 13 and the workbench 11 through the sealing device 7.

After the vacuum cover 13 is sealed, the clamping head 82 of the pneumatic clamping device 8 can be attached to the outer surface of the vacuum cover 13, the vacuum cover 13 is effectively fixed, then the vacuum pump 91 is started, and air in the sealed space 15 can be completely discharged through the vacuum pump 91, so that vacuumizing treatment of the sealed space 15 is realized.

After the vacuumizing process is finished, the heating device 2 heats the material to be hot-pressed in the lower die 31, and at the moment, the pressing block 34 of the upper die 32 can be pressed down and clamped into the accommodating cavity 33 of the lower die 31, and the material to be hot-pressed can be hot-pressed through mutual extrusion of the upper die 32 and the lower die 31, so that the composite board meets the technological requirements of impurity removal, purification and high density.

After the hot press forming process is completed, the air cylinder 61 makes a return movement to separate the upper die 32 from the lower die 31 and separate the vacuum hood 13 from the table 11, thereby achieving the effect of radiating heat from the composite board and facilitating the removal of the composite board.

After the heat dissipation of the composite board is completed, the composite board after the hot press forming process in the accommodating chamber 33 of the lower die 31 may be taken out.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (10)

1. The utility model provides a metal composite sheet vacuum hot briquetting device, includes frame (1), its characterized in that:

a workbench (11) for accommodating and mounting the heating device (2) and the die (3) is arranged at the top of the frame (1), and an adjustable supporting device (4) for supporting the frame (1) is arranged at the bottom of the frame (1);

the two sides of the top of the workbench (11) are correspondingly provided with sliding devices (5) for controlling the pressing plate (16) to horizontally slide, and the top of the sliding devices (5) is fixedly provided with a mounting plate (12) for mounting the pressing device (6);

the bottom of the pressing plate (16) is provided with a vacuum cover (13), and the vacuum cover (13) can move downwards to be combined with the workbench (11) to form a sealing space (15) for sealing the heating device (2) and the die (3);

a sealing device (7) for sealing the sealing space (15) is arranged between the vacuum cover (13) and the workbench (11), and a pneumatic clamping device (8) for clamping the vacuum cover (13) is arranged on the workbench (11);

the bottom of the workbench (11) is provided with a vacuum device (9) corresponding to the sealing space (15).

2. The apparatus for vacuum hot press forming of metal composite plate according to claim 1, wherein: the heating device (2) comprises a heating head (21) arranged around the die (3), and an electric heating pipe (22) extending outwards is arranged on the heating head (21).

3. The apparatus for vacuum hot press forming of metal composite plate according to claim 1, wherein: the die (3) comprises a lower die (31) arranged at the top of the workbench (11) and an upper die (32) arranged corresponding to the lower die (31);

a containing cavity (33) for containing the material to be hot pressed is formed in the lower die (31), and a pressing block (34) corresponding to the containing cavity (33) is arranged at the end, facing the lower die (31), of the upper die (32);

the upper die (32) is arranged at the bottom of the pressing plate (16) through a connecting piece (35), and the upper die (32) can be used for carrying out hot press molding on a material to be hot pressed in the accommodating cavity (33) under the driving of the pressing plate (16).

4. The apparatus for vacuum hot press forming of metal composite plate according to claim 1, wherein: the adjustable supporting device (4) comprises a supporting frame (41) arranged at the bottom side of the frame (1), and the supporting frame (41) is connected with supporting feet (43) through supporting bolts (42);

the support frame (41) is provided with a support hole (44) for accommodating the support bolt (42) to pass through, and the support bolt (42) is connected with a support nut (45) in a threaded manner.

5. The apparatus for vacuum hot press forming of metal composite plate according to claim 1, wherein: the sliding device (5) comprises upright posts (51) which are correspondingly arranged on two sides of the top of the workbench (11), and movable bushings (52) which are used for being connected with the pressing plate (16) are arranged on the upright posts (51).

6. The apparatus for vacuum hot press forming of metal composite plate according to claim 1, wherein: the pressing device (6) comprises an air cylinder (61) arranged at the top of the mounting plate (12), and the output end of the air cylinder (61) is connected with the connecting block (63) through a joint (62);

the connecting block (63) is fixedly connected with a cross reinforcing rib fixedly arranged at the top of the pressing plate (16).

7. The apparatus for vacuum hot press forming of metal composite plate according to claim 1, wherein: the sealing device (7) comprises a sealing groove (71) arranged at the top of the workbench (11), and a rubber strip (72) is arranged in the sealing groove (71);

a sealing strip (73) for fully covering the sealing groove (71) is arranged at the bottom of the vacuum cover (13).

8. The apparatus for vacuum hot press forming of metal composite plate according to claim 1, wherein: the pneumatic clamping device (8) comprises clamping seats (81) which are correspondingly arranged on two sides of the top of the workbench (11), and clamping heads (82) which are used for clamping the side edges of the vacuum cover (13) are arranged on the clamping seats (81).

9. The apparatus for vacuum hot press forming of metal composite plate according to claim 1, wherein: the vacuum device (9) comprises a vacuum pump (91) arranged at the bottom of the workbench (11), and the input end of the vacuum pump (91) is communicated with the sealing space (15) through a connecting pipe.

10. The apparatus for vacuum hot press forming of metal composite plate according to claim 1, wherein: the vacuum cover (13) is internally provided with a vacuum heat-insulating layer (14).