CN113798492A

CN113798492A - Powder metallurgy sintering system and method based on tiling shaping and compaction forming technology

Info

Publication number: CN113798492A
Application number: CN202111041004.0A
Authority: CN
Inventors: 赵云红
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2021-12-17

Abstract

The invention discloses a powder metallurgy sintering system and a method based on a tiling shaping and compaction molding technology, which comprises a powder shaping molding line and powder metallurgy sintering equipment; the powder shaping and forming operation line comprises a conveying line, a forming die, a positioning device, a flat laying and shaping device and a compaction and forming device; a flat-laying shaping station and a compaction forming station are sequentially arranged on the conveying line, and a flat-laying shaping device is correspondingly arranged on the flat-laying shaping station and is used for carrying out flat-laying shaping operation on the metal powder in the forming die at the flat-laying shaping station; the compaction forming device is correspondingly arranged at the compaction forming station and is used for carrying out compaction forming operation on the metal powder in the forming die at the compaction forming station; the forming die is a detachable structure die, and the metal powder forming body in the forming die is detached and then sintered by powder metallurgy sintering equipment. The invention has the advantages of good powder metallurgy quality and high efficiency, and is suitable for large-scale popularization.

Description

Powder metallurgy sintering system and method based on tiling shaping and compaction forming technology

Technical Field

The invention belongs to the technical field of powder metallurgy sintering, and particularly relates to a powder metallurgy sintering system and method based on a tiling shaping and compaction forming technology.

Background

In the powder metallurgy sintering operation process, the tightness degree of metal powder directly influences the quality of a sintered metal body, and if the gaps among metal powder particles are reduced as much as possible before sintering, the production quality of metal products can be greatly ensured and improved in the subsequent sintering process by using a powder metallurgy sintering furnace. Based on the reasons, the powder metallurgy sintering system and method based on the tiling shaping and compaction forming technology are designed, have the advantages of good powder metallurgy quality and high efficiency, and are suitable for large-scale popularization.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the powder metallurgy sintering system and method based on the tiling shaping and compaction forming technology provided by the invention have the advantages of good powder metallurgy quality and high efficiency, and are suitable for large-scale popularization.

The technical scheme is as follows: in order to achieve the purpose, the powder metallurgy sintering system based on the tiling shaping and compaction forming technology comprises a powder shaping forming operation line and powder metallurgy sintering equipment; the powder shaping and forming operation line comprises a conveying line, a forming die, a positioning device, a flat laying and shaping device and a compaction and forming device; the forming die filled with metal powder is conveyed to the compaction forming station from the tiling and reshaping station through the conveying line, and the forming die is positioned by the positioning device after being positioned at the tiling and reshaping station and the compaction forming station; the flat-laying shaping device is correspondingly arranged at the flat-laying shaping station and is used for carrying out flat-laying shaping operation on the metal powder in the forming die at the flat-laying shaping station; the compaction forming device is correspondingly arranged at a compaction forming station and is used for carrying out compaction forming operation on the metal powder in the forming die at the compaction forming station; the forming die is a detachable structure die, and the metal powder forming body in the forming die is detached and then sintered by the powder metallurgy sintering equipment.

Further, the tiling and shaping device comprises a three-dimensional sliding table module and a shaper arranged on the Z axis of the three-dimensional sliding table module; the shaper comprises a mounting plate, a tiled motor, a central shaft and a gap shaping double-layer plate, wherein the tiled motor is vertically and downwards mounted on a Z shaft of the three-dimensional sliding table module through the mounting plate, the central shaft is connected to an output shaft of the tiled motor, and the gap shaping double-layer plate is arranged at the lower end of the central shaft; the three-dimensional sliding table module drives the shaper to adjust the direction, the gap shaping double-layer plate extends into the forming mold and presses the surface of the metal powder, and the tiling motor drives the central shaft to drive the gap shaping double-layer plate to rotate so as to tile and shape the metal powder;

the gap shaping double-layer plate comprises a lower flat plate and an upper baffle plate, the upper baffle plate and the lower flat plate are concentrically arranged at intervals, the area of the upper baffle plate is larger than or equal to that of the lower flat plate, a raised flanging is arranged at the edge of the lower flat plate, a pelvic cavity structure is formed between the flanging and the lower flat plate, and material leaking holes for conducting the pelvic cavity structure are uniformly distributed at the bottom of the lower flat plate.

Furthermore, the compaction forming device comprises a linear servo sliding table module, a cross rod, a first vertical cylinder, an upper connecting plate, a lower connecting plate, a transverse elastic metal plate, a vertical side plate, a transverse compression roller and a vibrator; the transverse rod is installed on the linear type servo sliding table module in a crossing posture, the first vertical air cylinder is installed at the bottom of the transverse rod in a vertical downward mode, the upper connecting plate is fixedly connected to the piston rod end of the first vertical air cylinder, the upper connecting plate and the lower connecting plate clamp the transverse elastic metal plate and are fixed through bolts and nuts, the two vertical side plates are respectively connected to two ends of the transverse elastic metal plate, the transverse compression roller is arranged between the two vertical side plates, and the vibrators are installed on the vertical side plates in a one-to-one correspondence mode;

the compaction forming device also comprises a second vertical cylinder, an upper magnetic block, a transverse connecting plate, a lower magnetic block, a middle magnetic block and a rotating mechanism; the magnetic separation device comprises a first vertical cylinder, a second vertical cylinder, an upper magnetic block, a transverse connecting plate, a lower magnetic block, a rotating mechanism and a lower magnetic block, wherein the first vertical cylinder is vertically installed at the bottom of the lower connecting plate downwards, the upper magnetic block is fixedly connected to the end of a piston rod of the first vertical cylinder, the transverse connecting plate is connected between two vertical side plates, the lower magnetic block is arranged on the transverse connecting plate and vertically corresponds to the upper magnetic block, the middle magnetic block is arranged on the transverse connecting plate through the rotating mechanism, a space between the upper magnetic block and the lower magnetic block is a magnetic separation space, the rotating mechanism is used for adjusting the state of the middle magnetic block to be converted with two positions outside the magnetic separation space in the magnetic separation space, the upper magnetic block and the lower magnetic block are in opposite attraction relationship, and the middle magnetic block, the upper magnetic block and the lower magnetic block are in like-pole repulsion relationship.

Furthermore, the middle magnetic block is adjusted to rotate to a position state in the magnetic spacing space through the rotating mechanism, and the middle magnetic block, the upper magnetic block and the lower magnetic block are magnetically repellent;

and the middle magnetic block is adjusted by the rotating mechanism to rotate to a position outside the magnetic spacing space, and the upper magnetic block is pushed by the second vertical cylinder to move downwards to be magnetically connected with the lower magnetic block.

Furthermore, the rotating mechanism comprises an adjusting motor and a crank driven by the adjusting motor, and the crank is connected with the middle magnetic block.

Furthermore, the positioning devices are distributed on two sides of the spreading shaping station and the compacting forming station, and the forming die positioned on the spreading shaping station or the compacting forming station is clamped from the side surface by the corresponding positioning devices for positioning; the positioning device comprises a positioning feeding piece and a positioning clamping plate arranged on the positioning feeding piece, the positioning feeding piece drives the positioning clamping plate to feed and abut against the side surface of the forming die, and the positioning feeding piece is a transverse electric push rod or a transverse air cylinder.

Further, the forming die is composed of a die body and a die bottom, and the die bottom and the die body are detachably assembled.

The method of the powder metallurgy sintering system based on the tiling shaping and compaction forming technology sequentially comprises a tiling shaping operation stage, a compaction forming operation stage and a metallurgy sintering operation stage, and specifically comprises the following steps:

a) stage of tiling and shaping operation

Conveying the forming die filled with the metal powder to a tiling and shaping station through a conveying line, firstly positioning by using a positioning device, and then tiling and shaping by using a tiling and shaping device; the gap shaping double-layer plate extends into the forming die and is pressed on the surface of the metal powder, the three-dimensional sliding table module drives the shaper to adjust the direction while the tiling motor drives the central shaft to drive the gap shaping double-layer plate to rotate, and therefore the metal powder is tiled and shaped; in the process of tiling and shaping, metal powder with the height exceeding the flanging temporarily passes through the flanging and is temporarily stored in the basin cavity structure, the upper material blocking plate blocks the temporarily stored metal powder, the metal powder is prevented from continuously entering and accumulating, along with the rotation of the gap shaping double-layer plate, when the material leaking hole rotates to a hollow position below, the hollow position is formed, the metal powder temporarily stored in the basin cavity structure can automatically leak from the material leaking hole under the action of gravity to fill the hollow position, and the surface of the metal powder is completely leveled by the gap shaping double-layer plate;

b) compacting and forming operation stage

Conveying the forming die of the metal powder after being tiled and shaped to a compaction forming station through a conveying line, firstly positioning by using a positioning device, and then carrying out compaction forming operation by using a compaction forming device; the compaction is divided into two subdivision steps of vibration compaction and downward pressing compaction, and the method comprises the following steps:

b 1: step of vibrocompaction

Firstly, a first vertical cylinder is used for executing extension action to lower a transverse press roller to the surface of metal powder in a forming die, then a middle magnetic block is adjusted and rotated to the position in a magnetic spacing space through a rotating mechanism, the middle magnetic block, an upper magnetic block and a lower magnetic block are magnetically repulsive, so that the upper magnetic block and the lower magnetic block are kept in the magnetic spacing space and are not contacted, then a vibrator is started, the transverse elastic metal plate is driven by the vibrator to generate vibration effect, so that the press roller is in a vibration state, finally, a linear servo sliding table module is used for driving the press roller in the vibration state to move back and forth to roll the metal powder to realize vibration compaction operation, along with the vibration settlement of the metal powder, the first vertical cylinder is gradually used for lowering the press roller to perform height following, so that the press roller is always kept in the state of being contacted with the surface of the metal powder;

b 2: pressing down and compacting step

After the vibration compaction is finished, the middle magnetic block is directly adjusted and rotated to a position outside a magnetic interval space through a rotating mechanism, the upper magnetic block is pushed by a second vertical cylinder to move downwards to be in magnetic attraction connection with the lower magnetic block, then a linear servo sliding table module is used for driving a press roller to move back and forth to roll metal powder to realize the pressing and compaction operation, the press roller is lowered by the first vertical cylinder again to keep following along with the pressing and sedimentation of the metal powder, and a metal powder forming body is formed after the metal powder is compacted;

c) stage of metallurgical sintering operation

And (4) disassembling the forming die, unloading the metal powder forming body, and conveying the metal powder forming body to powder metallurgy sintering equipment for metallurgy sintering operation, wherein the powder metallurgy sintering equipment adopts a powder metallurgy sintering furnace.

Has the advantages that: the powder metallurgy sintering system and method based on the tiling shaping and compaction forming technology have the following beneficial effects:

1) before sintering operation, a tiling shaping device is used for tiling and shaping metal powder, and the shaped metal powder is compacted and shaped by a compaction forming device to form a metal powder forming body, so that the compactness among metal powder particles can be enhanced, the subsequent sintering operation is facilitated, the production quality of powder metallurgy sintered products can be greatly ensured and improved, and the method is suitable for large-scale popularization;

2) in the process of shaping the metal powder, the overhigh metal powder can be temporarily stored in the pelvic cavity structure, and then the metal powder is released through the corresponding material leakage hole to be filled when the metal powder meets a low-lying position, so that the efficiency of the flat-laying shaping mode is high;

3) in the compaction forming device, have vibration compaction and push down two functions of compaction, vibration compaction makes the metal powder vibration subsides in the front, pushes down the compaction after, makes the clearance between the metal powder granule further reduce, and the compaction effect is better, strengthens the compactness between the metal powder granule greatly.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a powder shaping and forming line;

FIG. 3 is a schematic structural diagram of a tiling and shaping apparatus;

fig. 4 is a schematic structural view of a flat laying shaping device in a split state of a gap shaping double-layer plate;

FIG. 5 is a schematic view of a compaction forming apparatus;

FIG. 6 is a schematic structural diagram of the compacting and forming device in which the intermediate magnetic block is adjusted to rotate to a position in the magnetic spacing space by the rotating mechanism;

FIG. 7 is a schematic structural diagram of the compacting and forming device in which the intermediate magnetic block is adjusted to rotate to a position outside the magnetic spacing space by the rotating mechanism;

fig. 8 is a schematic structural diagram of the positioning device.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the powder metallurgy sintering system based on the flat shaping and compaction forming technology comprises a powder shaping and forming line 1 and a powder metallurgy sintering device 2; the powder shaping and forming line 1 comprises a conveying line 10, a forming die 11, a positioning device 13, a flat laying and shaping device 14 and a compaction and forming device 15; the conveying line 10 is sequentially provided with a flat-laying shaping station 100a and a compaction forming station 100b, the forming die 11 filled with metal powder is conveyed from the flat-laying shaping station 100a to the compaction forming station 100b through the conveying line 10, and the forming die 11 is positioned by the positioning device 13 after being positioned at the flat-laying shaping station 100a and the compaction forming station 100 b; the flat-laying shaping device 14 is correspondingly arranged at the flat-laying shaping station 100a and is used for performing flat-laying shaping operation on the metal powder in the forming die 11 of the flat-laying shaping station 100 a; the compaction forming device 15 is correspondingly arranged at the compaction forming station 100b and is used for carrying out compaction forming operation on the metal powder in the forming die 11 of the compaction forming station 100 b; the forming die 11 is a detachable structure die, and the metal powder forming body in the forming die is detached and then sintered by the powder metallurgy sintering equipment 2. Before the sintering operation, utilize tiling shaping device 14 to carry out the tiling shaping to metal powder and utilize compaction forming device 15 to carry out the compaction shaping to the metal powder after the shaping and form the metal powder formed body, can strengthen the compactness between the metal powder granule, more be favorable to follow-up sintering operation, can guarantee greatly and improve the output quality of powder metallurgy sintered product, be suitable for the scale and promote.

As shown in fig. 3, the tiling shaping device 14 includes a three-dimensional sliding table module 141 and a shaper 142 mounted on the Z-axis of the three-dimensional sliding table module 141; the shaper 142 comprises a mounting plate 1421, a tiled motor 1422, a central shaft 1423 and a gap-shaping double-layer plate 1424, wherein the tiled motor 1422 is vertically installed on the Z axis of the three-dimensional sliding table module 141 through the mounting plate 1421, the central shaft 1423 is connected to the output shaft of the tiled motor 1422, and the gap-shaping double-layer plate 1424 is arranged at the lower end of the central shaft 1423; the three-dimensional sliding table module 141 drives the shaper 142 to adjust the orientation, the gap shaping double-layer plate 1424 extends into the forming die 11 to press the surface of the metal powder, and the tiling motor 1422 drives the central shaft 1423 to drive the gap shaping double-layer plate 1424 to rotate so as to tile and shape the metal powder.

As shown in fig. 4, the gap shaping double-layer plate 1424 includes a lower flat plate 14241 and an upper baffle plate 14242, the upper baffle plate 14242 and the lower flat plate 14241 are concentrically arranged at an interval 14240, the area of the upper baffle plate 14242 is greater than or equal to the area of the lower flat plate 14241, a raised flange 14243 is provided at the edge of the lower flat plate 14241, a basin structure 14244 is formed between the flange 14243 and the lower flat plate 14241, and drain holes 14245 which communicate with the basin structure 14244 are uniformly distributed at the bottom of the lower flat plate 14241. In the process of shaping the metal powder, the excessively high metal powder can be temporarily stored in the cavity structure 14244, and then the metal powder is released through the corresponding material leakage hole 14245 to fill the metal powder when the metal powder meets a low-lying position, so that the efficiency of the flat-laying shaping mode is high.

As shown in fig. 5, the compaction forming device 15 includes a linear servo sliding table module 151, a cross bar 152, a first vertical cylinder 153, an upper connecting plate 154, a lower connecting plate 155, a transverse elastic metal plate 156, a vertical side plate 157, a transverse press roller 158 and a vibrator 159; the cross rod 152 is installed on the linear type servo sliding table module 151 in a crossing posture, the first vertical cylinder 153 is installed at the bottom of the cross rod 152 vertically downwards, the upper connecting plate 154 is fixedly connected to a piston rod end of the first vertical cylinder 153, the upper connecting plate 154 and the lower connecting plate 155 clamp the transverse elastic metal plate 156 and are fixed through bolts and nuts, the two vertical side plates 157 are respectively connected to two ends of the transverse elastic metal plate 156, the transverse press roller 158 is arranged between the two vertical side plates 157, and the vibrators 159 are installed on the vertical side plates 157 in a one-to-one correspondence manner;

the compaction forming device 15 further comprises a second vertical cylinder 15.1, an upper magnet 15.2, a transverse connecting plate 15.3, a lower magnet 15.4, a middle magnet 15.5 and a rotating mechanism 15.6; the second vertical cylinder 15.1 is vertically and downwards installed at the bottom of the lower connecting plate 155, the upper magnet 15.2 is fixedly connected to a piston rod end of the second vertical cylinder 15.1, the transverse connecting plate 15.3 is connected between the two vertical side plates 157, the lower magnet 15.4 is arranged on the transverse connecting plate 15.3 and vertically corresponds to the upper magnet 15.2, the middle magnet 15.5 is arranged on the transverse connecting plate 15.3 through a rotating mechanism 15.6, a space between the upper magnet 15.2 and the lower magnet 15.4 is a magnetic spacing space 500, the rotating mechanism 15.6 is used for adjusting two position states of the middle magnet 15.5 inside the magnetic spacing space 500 and outside the magnetic spacing space 500 to be converted, the upper magnet 15.2 and the lower magnet 15.4 are in opposite attraction relationship, and the middle magnet 15.5, the upper magnet 15.2 and the lower magnet 15.4 are in the same-pole repulsion relationship.

As shown in fig. 6, when the middle magnetic block 15.5 is adjusted to rotate to the position state in the magnetic spacing space 500 by the rotating mechanism 15.6, the middle magnetic block 15.5, the upper magnetic block 15.2 and the lower magnetic block 15.4 are magnetically repulsive.

As shown in fig. 7, when the middle magnetic block 15.5 is adjusted to rotate to a position outside the magnetic spacing space 500 by the rotating mechanism 15.6, the upper magnetic block 15.2 is pushed by the second vertical cylinder 15.1 to move downwards and is magnetically connected with the lower magnetic block 15.4.

In compaction forming device 15, have vibration compaction and push down two functions of compaction, vibration compaction before, makes the metal powder vibration subside, pushes down the compaction after, makes the clearance between the metal powder granule further reduce, and the compaction effect is better, strengthens the compactness between the metal powder granule greatly.

The rotating mechanism 15.6 comprises an adjusting motor 15.61 and a crank 15.62 driven by the adjusting motor 15.61, and the crank 15.62 is connected with the intermediate magnetic block 15.5.

As shown in fig. 2 and 8, the positioning devices 13 are distributed on two sides of the flat shaping station 100a and the compaction forming station 100b, and the forming die 11 at the flat shaping station 100a or the compaction forming station 100b is clamped and positioned from the side by the corresponding positioning device 13; the positioning device 13 comprises a positioning feeding member 131 and a positioning clamping plate 132 arranged on the positioning feeding member 131, the positioning feeding member 131 drives the positioning clamping plate 132 to feed against the side surface of the forming die 11, and the positioning feeding member 131 is a transverse electric push rod or a transverse air cylinder.

The forming die 11 is composed of a die body 111 and a die bottom 112, and the die bottom 112 and the die body 111 are detachably assembled.

a) stage of tiling and shaping operation

The forming die 11 filled with the metal powder is conveyed to a tiling and shaping station 100a through a conveying line 10, and is firstly positioned by a positioning device 13 and then tiled and shaped by a tiling and shaping device 14; the gap shaping double-layer plate 1424 extends into the forming die 11 and is pressed on the surface of the metal powder, the tiling motor 1422 drives the central shaft 1423 to drive the gap shaping double-layer plate 1424 to rotate, and meanwhile, the three-dimensional sliding table module 141 drives the shaper 142 to adjust the orientation, so that the metal powder is tiled and shaped; in the process of tiling and shaping, metal powder with the height exceeding the flanging 14243 passes through the flanging 14243 and is temporarily stored in the basin cavity structure 14244, the upper material blocking plate 14242 blocks the temporarily stored metal powder to avoid accumulation of the metal powder caused by continuous entering of the metal powder, and along with the rotation of the gap shaping double-layer plate 1424, when the material leaking hole 14245 rotates to a hollow position below, the position is a low-lying position, the metal powder temporarily stored in the basin cavity structure 14244 can automatically fill the hollow position from the material leaking hole 14245 under the action of gravity until the surface of the metal powder is completely leveled by the gap shaping double-layer plate 1424;

b) compacting and forming operation stage

The forming die 11 of the metal powder after being spread and shaped is conveyed to a compaction forming station 100b through a conveying line 10, and is firstly positioned by a positioning device 13, and then is compacted and formed by a compaction forming device 15; the compaction is divided into two subdivision steps of vibration compaction and downward pressing compaction, and the method comprises the following steps:

b 1: step of vibrocompaction

The stretching action is first performed by the first vertical cylinder 153 to lower the lateral pressing roller 158 to the surface of the metal powder in the molding die 11, then the middle magnet 15.5 is adjusted to rotate to the position in the magnetic spacing space 500 through the rotating mechanism 15.6, the middle magnet 15.5, the upper magnet 15.2 and the lower magnet 15.4 are magnetically repellent, thereby keeping the upper magnetic block 15.2 and the lower magnetic block 15.4 in magnetic separation space 500 without contact, and subsequently activating the vibrator 159, the transverse elastic metal plate 156 is driven by the vibrator 159 to generate a vibration effect, so that the compression roller 158 is in a vibration state, finally the linear servo sliding table module 151 is used for driving the compression roller 158 in the vibration state to move back and forth to roll metal powder to realize vibration compaction operation, along with the vibration settlement of the metal powder, the first vertical cylinder 153 is gradually used for lowering the compression roller 158 to perform height following, and the compression roller 158 is always kept in a state of contacting the surface of the metal powder;

b 2: pressing down and compacting step

After the vibrating compaction is finished, the middle magnetic block 15.5 is directly adjusted and rotated to a position outside the magnetic spacing space 500 through the rotating mechanism 15.6, the upper magnetic block 15.2 is pushed to move downwards through the second vertical cylinder 15.1 to be magnetically attracted and connected with the lower magnetic block 15.4, then the linear servo sliding table module 151 is used for driving the press roll 158 to move back and forth to roll metal powder so as to realize the pressing and compacting operation, along with the pressing and settlement of the metal powder, the press roll 158 is placed downwards through the first vertical cylinder 153 again to keep following, and the metal powder is compacted to form a metal powder forming body;

c) stage of metallurgical sintering operation

And (3) disassembling the forming die 11, unloading the metal powder forming body, and conveying the metal powder forming body to powder metallurgy sintering equipment 2 for metallurgy sintering operation, wherein the powder metallurgy sintering equipment 2 adopts a powder metallurgy sintering furnace.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims

1. Powder metallurgy sintering system based on tiling plastic and compaction forming technique, its characterized in that: comprises a powder shaping and forming line (1) and powder metallurgy sintering equipment (2); the powder shaping and forming line (1) comprises a conveying line (10), a forming die (11), a positioning device (13), a tiling and shaping device (14) and a compaction and forming device (15); the metal powder compacting and shaping device is characterized in that a flat-laying shaping station (100a) and a compacting and shaping station (100b) are sequentially arranged on the conveying line (10), the forming die (11) filled with metal powder is conveyed to the compacting and shaping station (100b) from the flat-laying shaping station (100a) through the conveying line (10), and the forming die (11) is positioned through the positioning device (13) after being positioned at the flat-laying shaping station (100a) and the compacting and shaping station (100 b); the flat-laying shaping device (14) is correspondingly arranged on the flat-laying shaping station (100a) and is used for carrying out flat-laying shaping operation on the metal powder in the forming die (11) of the flat-laying shaping station (100 a); the compaction forming device (15) is correspondingly arranged at the compaction forming station (100b) and is used for carrying out compaction forming operation on the metal powder in the forming die (11) of the compaction forming station (100 b); the forming die (11) is a detachable structure die, and the metal powder forming body in the forming die is detached and then sintered by the powder metallurgy sintering equipment (2).

2. The powder metallurgy sintering system based on tiling shaping and compaction molding technology of claim 1, wherein: the tiling and shaping device (14) comprises a three-dimensional sliding table module (141) and a shaper (142) arranged on the Z axis of the three-dimensional sliding table module (141); the shaper (142) comprises a mounting plate (1421), a tiled motor (1422), a central shaft (1423) and a gap-shaping double-layer plate (1424), wherein the tiled motor (1422) is vertically installed on a Z shaft of the three-dimensional sliding table module (141) downwards through the mounting plate (1421), the central shaft (1423) is connected to an output shaft of the tiled motor (1422), and the gap-shaping double-layer plate (1424) is arranged at the lower end of the central shaft (1423); the three-dimensional sliding table module (141) drives the shaper (142) to adjust the direction, the gap shaping double-layer plate (1424) extends into the forming die (11) and is pressed on the surface of the metal powder, and the tiling motor (1422) drives the central shaft (1423) to drive the gap shaping double-layer plate (1424) to rotate so as to tile and shape the metal powder;

the gap shaping double-layer plate (1424) comprises a lower flat plate (14241) and an upper baffle plate (14242), the upper baffle plate (14242) and the lower flat plate (14241) are concentrically arranged at intervals (14240), the area of the upper baffle plate (14242) is larger than or equal to that of the lower flat plate (14241), a raised flanging (14243) is arranged at the edge of the lower flat plate (14241), a pelvic cavity structure (14244) is formed between the flanging (14243) and the lower flat plate (14241), and material leakage holes (14245) of the pelvic cavity structure (14244) are uniformly distributed at the bottom of the lower flat plate (14241).

3. The powder metallurgy sintering system based on tiling shaping and compaction forming technology of claim 2, wherein: the compaction forming device (15) comprises a linear servo sliding table module (151), a cross bar (152), a first vertical cylinder (153), an upper connecting plate (154), a lower connecting plate (155), a transverse elastic metal plate (156), a vertical side plate (157), a transverse pressing roller (158) and a vibrator (159); the transverse rod (152) is installed on the linear type servo sliding table module (151) in a crossing posture, the first vertical cylinder (153) is vertically installed at the bottom of the transverse rod (152) downwards, the upper connecting plate (154) is fixedly connected to the piston rod end of the first vertical cylinder (153), the upper connecting plate (154) and the lower connecting plate (155) clamp the transverse elastic metal plate (156) and are fixed through bolts and nuts, the two vertical side plates (157) are respectively connected to two ends of the transverse elastic metal plate (156), the transverse press roller (158) is arranged between the two vertical side plates (157), and the vibrators (159) are installed on the vertical side plates (157) in a one-to-one correspondence mode;

the compaction forming device (15) further comprises a second vertical cylinder (15.1), an upper magnetic block (15.2), a transverse connecting plate (15.3), a lower magnetic block (15.4), a middle magnetic block (15.5) and a rotating mechanism (15.6); the second vertical cylinder (15.1) is vertically installed at the bottom of the lower connecting plate (155) downwards, the upper magnetic block (15.2) is fixedly connected with the piston rod end of the second vertical cylinder (15.1), the transverse connecting plate (15.3) is connected between the two vertical side plates (157), the lower magnetic block (15.4) is arranged on the transverse connecting plate (15.3) and vertically corresponds to the upper magnetic block (15.2), the middle magnetic block (15.5) is arranged on the transverse connecting plate (15.3) through a rotating mechanism (15.6), the space between the upper magnetic block (15.2) and the lower magnetic block (15.4) is a magnetic spacing space (500), the rotating mechanism (15.6) is used for adjusting the state of the middle magnetic block (15.5) in the magnetic spacing space (500) to be converted with the state of two positions outside the magnetic spacing space (500), the upper magnet (15.2) and the lower magnet (15.4) are in opposite attraction, and the middle magnet (15.5) and the upper magnet (15.2) and the lower magnet (15.4) are in like-pole repulsion.

4. The powder metallurgy sintering system based on tiling shaping and compaction forming technology of claim 3, wherein: the middle magnet (15.5) is adjusted to rotate to a position state in the magnetic spacing space (500) through the rotating mechanism (15.6), and the middle magnet (15.5) is magnetically repellent to the upper magnet (15.2) and the lower magnet (15.4);

and under the condition that the middle magnetic block (15.5) is adjusted to rotate to a position outside the magnetic spacing space (500) through the rotating mechanism (15.6), the upper magnetic block (15.2) is pushed by the second vertical cylinder (15.1) to move downwards to be magnetically connected with the lower magnetic block (15.4).

5. The powder metallurgy sintering system based on tiling shaping and compaction forming technology of claim 3 or 4, wherein: the rotating mechanism (15.6) comprises an adjusting motor (15.61) and a crank (15.62) driven by the adjusting motor (15.61), and the crank (15.62) is connected with the intermediate magnetic block (15.5).

6. The powder metallurgy sintering system based on tiling shaping and compaction forming technology of any one of claims 1-4, characterized in that: the positioning devices (13) are distributed on two sides of the flat laying and shaping station (100a) and the compaction and forming station (100b), and the forming die (11) positioned on the flat laying and shaping station (100a) or the compaction and forming station (100b) is clamped and positioned from the side surface through the corresponding positioning devices (13); the positioning device (13) comprises a positioning feeding piece (131) and a positioning clamping plate (132) arranged on the positioning feeding piece (131), the positioning feeding piece (131) drives the positioning clamping plate (132) to feed and abut against the side surface of the forming die (11), and the positioning feeding piece (131) is a transverse electric push rod or a transverse air cylinder.

7. The powder metallurgy sintering system based on tiling shaping and compaction forming technology of any one of claims 1-4, characterized in that: the forming die (11) is composed of a die body (111) and a die bottom (112), and the die bottom (112) and the die body (111) are detachably assembled.

8. The method of powder metallurgy sintering system based on tiling shaping and compaction forming technology of claim 4, wherein: the method comprises a tiling and shaping operation stage, a compaction and forming operation stage and a metallurgical sintering operation stage in sequence, and specifically comprises the following steps:

a) stage of tiling and shaping operation

The forming die (11) filled with the metal powder is conveyed to a tiling and shaping station (100a) through a conveying line (10), and is firstly positioned by a positioning device (13) and then tiled and shaped by a tiling and shaping device (14); the gap shaping double-layer plate (1424) extends into the forming die (11) and is pressed on the surface of the metal powder, the tiling motor (1422) drives the central shaft (1423) to drive the gap shaping double-layer plate (1424) to rotate, and meanwhile, the three-dimensional sliding table module (141) drives the shaper (142) to perform azimuth adjustment, so that the metal powder is tiled and shaped; in the process of tiling and shaping, metal powder with the height exceeding the flanging (14243) passes through the flanging (14243) and is temporarily stored in the basin cavity structure (14244), the upper material blocking plate (14242) blocks the temporarily stored metal powder to avoid the metal powder from continuously entering to cause accumulation, and along with the rotation of the gap shaping double-layer plate (1424), when the material leaking hole (14245) rotates to the position with hollowed-out lower part, the position is a low-lying position, the metal powder temporarily stored in the basin cavity structure (14244) can automatically leak from the material leaking hole (14245) under the action of gravity to fill the hollowed-out position until the surface of the metal powder is completely leveled by the gap shaping double-layer plate (1424);

b) compacting and forming operation stage

The forming die (11) of the metal powder after being spread and shaped is conveyed to a compaction forming station (100b) through a conveying line (10), and is firstly positioned by a positioning device (13) and then compacted and formed by a compaction forming device (15); the compaction is divided into two subdivision steps of vibration compaction and downward pressing compaction, and the method comprises the following steps:

b 1: step of vibrocompaction

Firstly, a first vertical cylinder (153) is utilized to carry out extension action to lower a transverse press roll (158) to the surface of metal powder in a forming die (11), then a middle magnetic block (15.5) is adjusted to rotate to a position in a magnetic spacing space (500) through a rotating mechanism (15.6), the middle magnetic block (15.5), an upper magnetic block (15.2) and a lower magnetic block (15.4) are in magnetic repulsion, so that the upper magnetic block (15.2) and the lower magnetic block (15.4) keep the magnetic spacing space (500) and are not in contact, then a vibrator (159) is started, the press roll (158) is in a vibration state due to the vibration effect of the transverse elastic metal plate (156) under the driving of the vibrator (159), and finally a linear servo sliding table module (151) is utilized to drive the press roll (158) in the vibration state to move back and forth to roll the metal powder to realize vibration compaction operation, and the vibration and settlement of the metal powder are carried out along with the vibration of the metal powder, gradually lowering the press roll (158) by using the first vertical cylinder (153) to perform height following, so that the press roll (158) is always kept in a state of contacting the surface of the metal powder;

b 2: pressing down and compacting step

After the vibration compaction is finished, the middle magnetic block (15.5) is directly adjusted and rotated to a position outside the magnetic spacing space (500) through the rotating mechanism (15.6), the upper magnetic block (15.2) is pushed to move downwards through the second vertical cylinder (15.1) to be magnetically connected with the lower magnetic block (15.4), then the linear servo sliding table module (151) is used for driving the press roller (158) to move back and forth to roll metal powder to realize the pressing and compaction operation, the press roller (158) is placed down and kept to follow again through the first vertical cylinder (153) along with the pressing and sedimentation of the metal powder, and a metal powder forming body is formed after the metal powder is compacted;

c) stage of metallurgical sintering operation

The forming die (11) is disassembled, the metal powder forming body is unloaded and sent to powder metallurgy sintering equipment (2) for metallurgy sintering operation, and a powder metallurgy sintering furnace is selected as the powder metallurgy sintering equipment (2).