CN106955997A - Full-automatic powder forming hydraulic machine - Google Patents

Abstract

The invention discloses a full-automatic powder forming hydraulic machine, which comprises a forming oil press, a PLC (programmable logic controller) and an automatic feeding assembly, wherein the forming oil press comprises a lower end fixed mounting plate, an upper end fixed mounting plate, a movable mounting plate and a forming driving oil cylinder; the upper die part comprises an upper die base plate, an upper die base plate and a forming upper die; the lower die part comprises a lower die mounting seat, a lower die mounting plate and a forming lower die, a die cavity main body is embedded in a die cavity plate mounting hole of the movable die cavity plate, and a forming cavity is formed in the die cavity main body; the floating lower die part comprises a first floating oil cylinder, a first floating mounting plate and a floating lower die, and a fixed core rod is arranged on the lower end fixed mounting plate; the lower end side of the lower end fixed mounting plate is provided with an oil cylinder fixing plate, a lower end supporting column, a second floating mounting plate, a second floating oil cylinder and a floating connecting rod. Through the structural design, the powder forming machine can automatically and efficiently complete powder forming processing, namely the powder forming machine has the advantages of novel design, high automation degree and high working efficiency.

Description

A fully automatic powder forming hydraulic press

technical field

The invention relates to the technical field of powder forming devices, in particular to a fully automatic powder forming hydraulic machine.

Background technique

Forming of powder is the process of compacting metal powder into a compact with a certain shape, size, density and strength. It is one of the basic processes of powder metallurgy process.

With the continuous improvement of the automation level, there are various powder molding processing devices in the prior art; among them, for the powder molding shown in Fig. 1, there is no corresponding automatic powder molding device in the prior art.

Contents of the invention

The object of the present invention is to provide a fully automatic powder forming hydraulic press for the deficiencies of the prior art, which has novel structure design, high degree of automation and high working efficiency.

In order to achieve the above object, the present invention is achieved through the following technical solutions.

A fully automatic powder molding hydraulic press, including a molding hydraulic press, the molding hydraulic press includes a hydraulic press machine table, the upper end of the hydraulic press machine table is equipped with a lower end fixed installation plate arranged horizontally and horizontally, and a lower end fixed installation plate is installed directly above the lower end fixed installation plate The upper fixed mounting plate is arranged horizontally and horizontally, the upper fixed mounting plate and the lower fixed mounting plate are arranged in parallel and spaced apart, and four rectangularly distributed fixed supports arranged vertically are installed between the upper fixed mounting plate and the lower fixed mounting plate The upper end of each fixed support column is connected to the upper fixed installation plate respectively, the lower end of each fixed support column is connected to the lower fixed installation plate respectively, and the upper fixed installation plate and the lower fixed installation plate can be installed relatively up and down. There are movable mounting plates arranged horizontally and horizontally, and the movable mounting plates are respectively equipped with supporting column guide sleeves corresponding to each fixed supporting column, and each fixed supporting column can be embedded in the center hole of the corresponding supporting column guiding sleeve relatively up and down. , the upper fixed mounting plate corresponds to the movable mounting plate and is equipped with a forming drive cylinder that moves up and down, and the piston rod extension end of the forming drive cylinder extends to the lower end side of the upper fixed mounting plate and is connected with the movable mounting plate;

The middle position of the lower surface of the movable installation plate is screwed with an upper die backing plate arranged horizontally and horizontally, and the middle position of the lower surface of the upper die seat backing plate is screwed with an upper die backing plate. Extended forming upper die;

The middle position of the upper surface of the fixed mounting plate at the lower end is screwed with a lower mold mounting seat, and the upper end of the lower mold mounting seat is screwed with a lower mold mounting plate arranged horizontally and horizontally. Extending to the forming lower mold that protrudes and is located directly below the forming upper mold, the core of the forming lower mold is provided with a lower mold installation hole that completely penetrates up and down;

A movable cavity plate can be installed relatively movable between the forming upper mold and the forming lower mold, and the upper mold base plate is equipped with four cavity plates in a rectangular distribution and extending vertically downwards respectively, corresponding to the movable cavity plate Guide rods, the guide rods of the movable cavity plates are respectively equipped with guide rod guide sleeves corresponding to the guide rods of each cavity plate, and the guide rods of each cavity plate can be inserted into the center holes of the corresponding guide rod guide sleeves relatively up and down. The middle position of the cavity plate is provided with a cavity plate installation hole that completely penetrates up and down, and the mold cavity body is embedded in the cavity plate installation hole of the movable cavity plate. The molding cavity of the forming upper mold and the forming lower mold is facing up and down, and the upper end of the forming lower mold is embedded in the molding cavity of the main body of the mold cavity;

There is a first floating installation plate that can be moved up and down between the lower mold mounting plate and the lower fixed mounting plate, and the upper surface of the lower fixed mounting plate is equipped with a first floating oil cylinder that moves up and down beside the lower mold mounting seat , the driving end of the first floating oil cylinder is connected to the first floating mounting plate, and the middle position of the upper surface of the first floating mounting plate is installed with a vertically arranged floating lower mold, and the upper end of the floating lower mold passes through the lower mold upwards The mounting plate extends to the lower die mounting hole of the forming lower die, and the core of the floating lower die is provided with a mandrel mounting hole that completely penetrates up and down;

The fixed mounting plate at the lower end is equipped with fixed mandrels arranged vertically, and the upper end of the fixed mandrel passes upwards through the first floating mounting plate and extends into the mandrel mounting hole of the floating lower mold;

The lower side of the lower fixed mounting plate is equipped with a horizontally arranged oil cylinder fixing plate, the oil cylinder fixing plate and the lower fixed mounting plate are arranged at intervals, and the lower surface of the lower fixed mounting plate is equipped with four rectangular distributions and facing downward vertically respectively. The lower end support columns extending to the lower end, the oil cylinder fixed plate is fastened to the lower end of each lower end support column, and the second floating installation plate can be installed relatively up and down between the oil cylinder fixed plate and the lower end fixed installation plate, the second floating installation plate Corresponding to each lower support column, there are guide holes that completely penetrate up and down. Each lower support column can be inserted into the corresponding guide hole relatively up and down. The oil cylinder fixed plate is equipped with a second floating oil cylinder that moves up and down. The driving end of the floating oil cylinder is connected with the second floating mounting plate, and the upper surface of the second floating mounting plate is equipped with four floating connecting rods distributed in a rectangular shape and vertically arranged respectively, and the upper ends of each floating connecting rod are respectively upwardly pierced. Fix the mounting plate through the lower end and connect with the movable cavity plate;

The rear end of the movable cavity plate is provided with a feeding oil cylinder mounting seat that protrudes backward. The feeding oil cylinder mounting seat is equipped with an automatic feeding cylinder that moves forward and backward horizontally. The upper surface of the movable cavity plate is equipped with a receiving box next to the feeding push piece, the upper fixed mounting plate is equipped with a hopper mounting frame, and the hopper mounting frame is equipped with a feeding hopper. The outlet of the feeding hopper is connected to the There is a guide hose between the receiving boxes;

The automatic powder molding hydraulic machine is equipped with a PLC controller, and the molding drive cylinder, the first floating cylinder, the second floating cylinder, and the automatic feeding cylinder are respectively electrically connected to the PLC controller.

Wherein, the upper die backing plate is screwed with an upper die fixing cover corresponding to the forming upper die, the upper end of the forming upper die is fastened to the upper die fixing cover and the lower end of the forming upper die extends to the lower end side of the upper die fixing cover .

Wherein, the lower mold mounting plate is equipped with a lower mold fixing cover corresponding to the forming lower mold screw, the lower end of the forming lower mold is fastened to the lower mold fixing cover and the upper end of the forming lower mold extends to the upper end of the lower mold fixing cover side.

Wherein, the first floating mounting plate is equipped with a floating mold fixing cover corresponding to the floating lower mold, the lower end of the floating lower mold is fixed to the floating mold fixing cover and the upper end of the floating lower mold extends to the floating mold fixing cover. upper side.

The beneficial effects of the present invention are: a fully automatic powder forming hydraulic press according to the present invention, which includes a forming hydraulic press and a PLC controller, and the forming hydraulic press includes a hydraulic press machine, a lower fixed installation plate, an upper fixed installation plate, a fixed support column, The movable installation plate, the guide sleeve of the supporting column, and the forming drive cylinder; the backing plate of the upper mold seat on the lower surface of the movable installation plate is screwed on the upper mold backing plate, and the upper mold backing plate is installed on the forming upper mold; the lower mold on the upper surface of the lower fixed installation plate The upper end of the mounting seat is screwed with the lower mold mounting plate, and the forming lower mold is installed on the upper surface of the lower mold mounting plate; the movable cavity plate is installed between the upper and lower forming molds, and the cavity plate mounting hole of the movable cavity plate is embedded. The main body of the mold cavity is opened with a molding chamber; the first floating mounting plate driven by the first floating oil cylinder is installed between the lower mold mounting plate and the fixed mounting plate at the lower end, and a floating mounting plate is installed on the upper surface of the first floating mounting plate. The lower mold; the fixed mandrel is installed on the fixed mounting plate at the lower end; the fixed plate of the oil cylinder, the supporting column at the lower end, the second floating mounting plate, the second floating oil cylinder, and the floating connecting rod are installed on the lower side of the fixed mounting plate at the lower end; the rear end of the movable cavity plate An automatic feeding cylinder is installed on the feeding oil cylinder mounting seat at the bottom, and a feeding push piece is installed on the extension end of the piston rod of the automatic feeding cylinder. A hopper mounting frame is provided, a feeding hopper is installed on the hopper mounting frame, and a guiding rubber hose is connected between the discharge port of the feeding hopper and the receiving box. Through the above structural design, the present invention can automatically and efficiently complete the powder forming process, that is, the present invention has the advantages of novel structural design, high degree of automation, and high work efficiency.

Description of drawings

The present invention will be further described below using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

Figure 1 is a schematic diagram of the structure of a powder compact.

Fig. 2 is a structural schematic diagram of the present invention.

Fig. 3 is a structural schematic diagram of another perspective of the present invention.

Fig. 4 is a schematic diagram of a partial structure of the present invention.

In Figures 1 to 4 include:

1——Hydraulic press machine 11——Hydraulic press machine

12——Fixed mounting plate at the lower end 13——Fixed mounting plate at the upper end

14——fixed support column 15——movable mounting plate

16——Support column guide sleeve 17——Forming drive cylinder

21——upper die backing plate 22——upper die backing plate

23——forming upper mold 24——upper mold fixed cover

31——Lower mold mounting seat 32——Lower mold mounting plate

33——Forming lower mold 331——Lower mold installation hole

34——fixed cover of lower mold 41——movable cavity plate

411——Cavity plate installation hole 42——Cavity plate guide rod

43——guide rod and guide sleeve 44——main body of mold cavity

441——Molding chamber 51——First floating mounting plate

52——First floating oil cylinder 53——Floating lower mold

531——mandrel rod installation hole 54——fixed cover of floating mold

6——fixed mandrel 71——oil cylinder fixed plate

72——lower support column 73——second floating mounting plate

74——Second floating oil cylinder 75——Floating connecting rod

81——Feeding oil cylinder mounting seat 82——Automatic feeding cylinder

83——Concept box 84——Hopper mounting frame

85——feeding hopper 86——guiding rubber hose

9——PLC controller.

detailed description

The present invention will be described below in conjunction with specific embodiments.

As shown in Figures 2 to 4, a fully automatic powder molding hydraulic press includes a molding hydraulic press 1, and the molding hydraulic press 1 includes a hydraulic press machine 11, and the upper end of the hydraulic press 11 is equipped with a lower end fixed in a horizontal and transverse arrangement. Mounting plate 12, the upper end fixed mounting plate 13 arranged horizontally and transversely is installed directly above the lower end fixed mounting plate 12, the upper end fixed mounting plate 13 is arranged in parallel with the lower end fixed mounting plate 12, and the upper end fixed mounting plate 13 is fixedly installed with the lower end Four fixed support columns 14 arranged vertically in a rectangular distribution are installed between the plates 12; The lower end fixed mounting plate 12 is connected, and the upper end fixed mounting plate 13 and the lower end fixed mounting plate 12 can be equipped with a movable mounting plate 15 in a horizontal and transverse arrangement relative to each other up and down. The movable mounting plate 15 corresponds to each fixed support column 14 respectively There are support column guide sleeves 16, and each fixed support column 14 can be embedded in the center hole of the corresponding support column guide sleeve 16 relatively up and down. The upper fixed mounting plate 13 corresponds to the movable mounting plate 15. Forming driving cylinder 17, the piston rod extension end of forming driving cylinder 17 extends to the lower end side of the upper fixed mounting plate 13 and is connected with the movable mounting plate 15.

Wherein, the middle position of the movable mounting plate 15 lower surface is screwed with the upper mold backing plate 21 that is arranged horizontally and horizontally, and the middle position of the upper mold backing plate 21 lower surface is screwed with the upper mold backing plate 22, and the upper mold backing plate 22 is equipped with the molding upper mold 23 that protrudes downwards and extends.

Further, the middle position of the upper surface of the fixed mounting plate 12 at the lower end is screwed with a lower mold mounting base 31, and the upper end of the lower mold mounting base 31 is screwed with a lower mold mounting plate 32 arranged horizontally and horizontally. The upper surface is equipped with a forming lower mold 33 protruding vertically upwards and located directly below the forming upper mold 23 , and the core of the forming lower mold 33 is provided with a lower mold mounting hole 331 completely penetrating up and down.

Furthermore, a movable cavity plate 41 can be relatively movably installed between the forming upper mold 23 and the forming lower mold 33, and the upper mold base plate 21 is equipped with four movable cavity plates 41 corresponding to the rectangular distribution and respectively The cavity plate guide rod 42 extending vertically downwards, the movable cavity plate 41 is equipped with a guide rod guide sleeve 43 respectively corresponding to each cavity plate guide rod 42, and each cavity plate guide rod 42 can be embedded in a relatively movable manner up and down. Inserted in the center hole of the corresponding guide rod and guide sleeve 43, the middle position of the movable cavity plate 41 is provided with a cavity plate mounting hole 411 that completely penetrates up and down, and the cavity plate mounting hole 411 of the movable cavity plate 41 is embedded. There is a mold cavity main body 44, and the middle position of the mold cavity main body 44 is provided with a molding cavity 441 that completely penetrates up and down and faces the molding upper mold 23 and the molding lower mold 33 up and down, and the upper end of the molding lower mold 33 is embedded in the mold Inside the molding cavity 441 of the cavity main body 44 .

In addition, a first floating mounting plate 51 can be installed relatively movable up and down between the lower mold mounting plate 32 and the lower fixed mounting plate 12, and the upper surface of the lower fixed mounting plate 12 is installed on the side of the lower mold mounting seat 31. The first floating cylinder 52 that moves up and down, the driving end of the first floating cylinder 52 is connected to the first floating mounting plate 51, and the middle position of the upper surface of the first floating mounting plate 51 is equipped with a vertically arranged floating lower die 53, The upper end of the floating lower die 53 passes through the lower die mounting plate 32 upwards and extends into the lower die mounting hole 331 of the forming lower die 33 .

The lower fixed mounting plate 12 is equipped with a vertical fixed mandrel 6 , the upper end of the fixed mandrel 6 passes through the first floating mounting plate 51 and extends into the mandrel mounting hole 531 of the floating lower mold 53 .

The lower end side of the lower fixed mounting plate 12 is equipped with a cylinder fixing plate 71 arranged horizontally and horizontally. The oil cylinder fixing plate 71 is arranged at intervals with the lower fixed mounting plate 12. And the lower end supporting columns 72 extending vertically downward respectively, the oil cylinder fixing plate 71 is fastened to the lower end of each lower end supporting column 72, and the first cylinder fixing plate 71 and the lower end fixed mounting plate 12 can be relatively movable up and down. Two floating mounting plates 73, the second floating mounting plate 73 is respectively provided with a guide hole that completely penetrates up and down corresponding to each lower end support column 72, and each lower end support column 72 can be inserted into the corresponding guide hole relatively up and down, and the oil cylinder is fixed. Plate 71 is equipped with the second floating oil cylinder 74 that moves up and down, the driving end of the second floating oil cylinder 74 is connected with the second floating mounting plate 73, and the upper surface of the second floating mounting plate 73 is equipped with four rectangular distribution and respectively For the vertically arranged floating connecting rods, the upper ends of each floating connecting rod pass through the lower fixed mounting plate 12 upwards and are connected with the movable cavity plate 41 .

The rear end of the movable cavity plate 41 is provided with a feeding oil cylinder mounting seat 81 that protrudes backward, and the feeding oil cylinder mounting seat 81 is equipped with an automatic feeding cylinder 82 that moves forward and backward horizontally, and the piston rod extension end of the automatic feeding cylinder 82 A feeding pusher is installed, and the upper surface of the movable cavity plate 41 is provided with a receiving box 83 on the side of the feeding pusher, and the upper fixed mounting plate 13 is equipped with a hopper mounting frame 84, and the hopper mounting frame 84 is equipped with a Feeding hopper 85, between the outlet of feeding hopper 85 and the receiving material box 83 is provided with guiding rubber hose 86.

It should be further pointed out that the automatic powder molding hydraulic machine is equipped with a PLC controller 9, and the molding drive cylinder 17, the first floating cylinder 52, the second floating cylinder 74, and the automatic feeding cylinder 82 are electrically connected to the PLC controller 9 respectively.

Further explanation is required, the forming upper mold 23, forming lower mold 33, and floating lower mold 53 of the present invention can be respectively installed and fixed by means of a fixed cover, specifically: the upper mold backing plate 22 corresponds to the forming upper mold 23 and the upper mold is fixed Cover 24, the upper end of forming upper mold 23 is fastened to upper mold fixed cover 24 and the lower end of forming upper mold 23 extends to the lower end side of upper mold fixed cover 24; The mold fixing cover 34, the lower end of the forming lower mold 33 is clamped on the lower mold fixing cover 34 and the upper end of the forming lower mold 33 extends to the upper end side of the lower mold fixing cover 34; the first floating mounting plate 51 corresponds to the floating lower mold 53 The screw is equipped with a floating mold fixed cover 54 , the lower end of the floating lower mold 53 is fastened to the floating mold fixed cover 54 and the upper end of the floating lower mold 53 extends to the upper end side of the floating mold fixed cover 54 .

In the working process of the present invention, the automatic feeding assembly composed of the feeding oil cylinder mounting seat 81, the automatic feeding cylinder 82, the receiving material box 83, the hopper mounting frame 84, the feeding hopper 85, and the rubber guide hose 86 can automatically push the powder molded parts Into the molding chamber 441 of the mold cavity main body 44; during the automatic feeding process of the automatic feeding assembly, the powder molded parts placed in the feeding hopper 85 slide down to the receiving box 83 along the feeding hose, and the automatic feeding of the forward and backward actions The cylinder 82 pushes the powder molded parts falling into the receiving box 83 into the molding chamber 441 of the mold cavity main body 44 through the feeding pusher.

In the process of using the present invention to press and form powder moldings, the powder moldings are pushed into the molding chamber 441 through the above-mentioned automatic feeding assembly. After the powder moldings are fed in place, the molding drive cylinder 17 moves and drives the movable mounting plate 15 Moving downwards, the movable mounting plate 15 moving downwards drives the forming upper mold 23 to move down and makes the lower end of the forming lower mold 33 stretch into the forming chamber 441; The oil cylinder 74 moves and pulls the mold cavity main body 44 to move down through the second floating mounting plate 73 and the floating connecting rod 75. During the downward movement of the mold cavity main body 44, the forming driving cylinder 17 drives the forming upper mold 23 to follow the mold shape. The cavity main body 44 moves down synchronously. During this process, the first floating cylinder 52 drives the floating lower die 53 to move down through the first floating mounting plate 51. The lower floating die 53 can effectively avoid the powder molding and move down to the Pressing position; further explanation is required. During the process of moving down the mold cavity main body 44, the forming upper mold 23 and the forming lower mold 33 gradually move closer together and finally press and hold the powder molded parts; after the powder molded parts are pressed, The forming drive cylinder 17 drives the forming upper die 23 to move up and reset; after the forming upper die 23 moves up and resets, the second floating oil cylinder 74 continues to drive the mold cavity main body 44 to move down. During this process, the forming lower die 33 and the fixed core The rod 6 moves upward relative to the main body 44 of the mold cavity, and then pushes the pressed powder molding out of the molding cavity 441 . It needs to be further explained that during the process of ejecting the powder molded part, the lower mold 33 acts on the edge of the powder molded part, and the fixed mandrel 6 acts on the middle position of the powder molded part, so that the powder molded part can be evenly stressed, And then effectively guarantee the demoulding effect.

Based on the above situation, it can be seen that through the above structural design, the present invention can automatically and efficiently complete the powder forming process, that is, the present invention has the advantages of novel structural design, high degree of automation, and high work efficiency.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. limits.

Claims (4)

1. A fully automatic powder forming hydraulic press, characterized in that: it includes a forming hydraulic press (1), the forming hydraulic press (1) includes a hydraulic press machine (11), and the upper end of the hydraulic press machine (11) is equipped with a horizontal The lower end fixed installation plate (12) arranged horizontally, the upper end fixed installation plate (13) arranged horizontally and transversely is installed directly above the lower end fixed installation plate (12), the upper end fixed installation plate (13) and the lower end fixed installation plate ( 12) Arranged in parallel at intervals, between the upper fixed mounting plate (13) and the lower fixed mounting plate (12), there are four fixed support columns (14) arranged vertically in a rectangular distribution, and each fixed support column (14 ) are respectively connected to the upper fixed mounting plate (13), the lower ends of each fixed support column (14) are respectively connected to the lower fixed mounting plate (12), and the upper fixed mounting plate (13) is connected to the lower fixed mounting plate (12 ) can be installed relatively up and down with movable installation plates (15) arranged horizontally and horizontally. The movable installation plates (15) are respectively equipped with support column guide sleeves (16) corresponding to the fixed support columns (14). The fixed support column (14) can be embedded in the center hole of the corresponding support column guide sleeve (16) relatively up and down, and the fixed mounting plate (13) on the upper end is equipped with a molding for up and down movement corresponding to the movable mounting plate (15). The drive cylinder (17), the extended end of the piston rod of the forming drive cylinder (17) extends to the lower end side of the upper fixed mounting plate (13) and is connected with the movable mounting plate (15); The middle position of the lower surface of the movable mounting plate (15) is screwed with an upper mold backing plate (21) arranged horizontally and horizontally, and the middle position of the lower surface of the upper mold backing plate (21) is screwed with an upper mold backing plate (22 ), the upper mold backing plate (22) is equipped with a forming upper mold (23) protruding downwards; The middle position of the upper surface of the fixed mounting plate (12) at the lower end is screwed with a lower mold mounting base (31), and the upper end of the lower mold mounting base (31) is screwed with a lower mold mounting plate (32) arranged horizontally and horizontally. The upper surface of the mold mounting plate (32) is equipped with a forming lower mold (33) that protrudes upwards and extends vertically and is positioned directly below the forming upper mold (23). The through lower die mounting hole (331); A movable cavity plate (41) can be installed relatively movably between the forming upper mold (23) and the forming lower mold (33), and the corresponding movable cavity plate (41) of the upper mold base plate (21) is equipped with four A cavity plate guide rod (42) is distributed in a rectangular shape and extends vertically downward respectively. The movable cavity plate (41) is respectively equipped with a guide rod guide sleeve (43) corresponding to each cavity plate guide rod (42). Each cavity plate guide rod (42) can be inserted into the center hole of the corresponding guide rod guide sleeve (43) relatively up and down, and the middle position of the movable cavity plate (41) is provided with a cavity that completely penetrates up and down. Plate mounting hole (411), the cavity plate mounting hole (411) of the movable cavity plate (41) is embedded with a mold cavity main body (44), and the middle position of the mold cavity main body (44) is provided with an upper and lower fully penetrated And the molding cavity (441) of molding upper mold (23) and molding lower mold (33) is facing up and down, and the upper end of molding lower mold (33) is embedded in the molding chamber (441) of mold cavity main body (44). )Inside; Between the lower mold mounting plate (32) and the lower end fixed mounting plate (12), a first floating mounting plate (51) can be installed relatively up and down, and the upper surface of the lower end fixed mounting plate (12) is on the lower mold mounting seat ( 31) is installed on the side of the first floating oil cylinder (52) that moves up and down, the driving end of the first floating oil cylinder (52) is connected with the first floating mounting plate (51), and the upper surface of the first floating mounting plate (51) A vertically arranged floating lower mold (53) is installed at the middle position of the center, and the upper end of the floating lower mold (53) passes through the lower mold mounting plate (32) upwards and extends to the lower mold of the forming lower mold (33). In the installation hole (331), the core of the floating lower mold (53) is provided with a mandrel installation hole (531) completely penetrating up and down; The fixed mounting plate (12) at the lower end is equipped with a fixed mandrel (6) arranged vertically, and the upper end of the fixed mandrel (6) passes through the first floating mounting plate (51) upwards and extends to the floating lower mold ( 53) in the mandrel installation hole (531); The lower side of the lower fixed mounting plate (12) is equipped with a horizontally arranged oil cylinder fixing plate (71), the oil cylinder fixing plate (71) is arranged at intervals from the lower fixed mounting plate (12), and the lower fixed mounting plate (12) The lower surface is equipped with four lower supporting columns (72) distributed in a rectangular shape and extending vertically downwards respectively. The oil cylinder fixing plate (71) is fastened to the lower end of each lower supporting column (72), and the oil cylinder fixing plate (71 ) and the fixed mounting plate (12) at the lower end, a second floating mounting plate (73) can be installed relatively up and down. The guide holes at the lower ends (72) can be inserted into the corresponding guide holes relatively up and down. The cylinder fixing plate (71) is equipped with a second floating cylinder (74) that moves up and down. The second floating cylinder The driving end of (74) is connected to the second floating mounting plate (73), and the upper surface of the second floating mounting plate (73) is equipped with four floating connecting rods arranged vertically in a rectangular distribution, and each floating connecting rod The upper ends of the upper end pass through the lower fixed mounting plate (12) upwards respectively and are connected with the movable cavity plate (41); The rear end of the movable cavity plate (41) is provided with a feeding oil cylinder mounting seat (81) that protrudes backward, and the feeding oil cylinder mounting seat (81) is equipped with an automatic feeding cylinder (82) that moves forward and backward horizontally. The piston rod extension end of the cylinder (82) is equipped with a feeding push piece, the upper surface of the movable cavity plate (41) is provided with a receiving box (83) beside the feeding push piece, and the upper end is fixed with a mounting plate (13 ) is equipped with a hopper mounting frame (84), the hopper mounting frame (84) is equipped with a feeding hopper (85), and a guiding rubber hose is connected between the outlet of the feeding hopper (85) and the receiving box (83) (86); The fully automatic powder molding hydraulic machine is equipped with a PLC controller (9), and the molding driving cylinder (17), the first floating cylinder (52), the second floating cylinder (74), and the automatic feeding cylinder (82) are respectively connected with the PLC controller (9) Electrical connection. 2. A fully automatic powder molding hydraulic press according to claim 1, characterized in that: the upper mold backing plate (22) is screwed with an upper mold fixing cover (24) corresponding to the forming upper mold (23), The upper end of the forming upper die (23) is fastened to the upper die fixing cover (24) and the lower end of the forming upper die (23) extends to the lower end side of the upper die fixing cover (24). 3. A fully automatic powder molding hydraulic press according to claim 1, characterized in that: said lower mold mounting plate (32) is screwed with a lower mold fixing cover (34) corresponding to said molding lower mold (33), The lower end of the forming lower die (33) is fastened to the lower die fixing cover (34) and the upper end of the forming lower die (33) extends to the upper end side of the lower die fixing cover (34). 4. A fully automatic powder molding hydraulic press according to claim 1, characterized in that: the first floating mounting plate (51) is screwed with a floating mold fixing cover (54) corresponding to the floating lower mold (53) , the lower end of the floating lower mold (53) is fastened to the floating mold fixed cover (54) and the upper end of the floating lower mold (53) extends to the upper end side of the floating mold fixed cover (54).