CN215237825U

CN215237825U - Die for powder metallurgy

Info

Publication number: CN215237825U
Application number: CN202121438939.8U
Authority: CN
Inventors: 杨超
Original assignee: Suzhou Yicheng Electronic Technology Co ltd
Current assignee: Suzhou Yicheng Electronic Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-21
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to a powder metallurgy technical field just discloses a mould for powder metallurgy, including processing platform, processing platform's bottom fixedly connected with chassis, processing platform's top is located the middle fixedly connected with support arm behind one side, the bottom fixedly connected with hydraulic column of processing platform's one end is kept away from to the support arm, the output fixedly connected with top board of hydraulic column, processing platform's top has laid the mould in the middle of being located the position, processing platform's top is provided with stamping device in the rear side that is located the mould, the left side outer wall fixedly connected with connecting rod that leans on of mould, connecting rod and processing platform slip joint. This mould for powder metallurgy is stamped by upper and lower both sides simultaneously during the punching press to improved the punching press power degree of consistency, improved off-the-shelf quality, and the device die sinking easy operation is convenient, thereby has improved the efficiency of processing.

Description

Die for powder metallurgy

Technical Field

The utility model relates to a powder metallurgy technical field specifically is a mould for powder metallurgy.

Background

When powder metallurgy needs to firstly use a die to punch and shape metal powder, and a part with the diameter of the middle end smaller than that of the upper end and the lower end is punched in a general punching mode, defective products are easy to occur due to uneven punching force degree in the die, the working efficiency is influenced, and the problem of inconvenience in demoulding is also caused when the part is machined.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a powder metallurgy uses mould has solved the uneven and inconvenient problem of drawing of patterns of punching press power degree.

(II) technical scheme

In order to achieve the above object, the present invention provides the following technical solutions: a die for powder metallurgy comprises a processing platform, wherein the bottom of the processing platform is fixedly connected with an underframe, the top of the processing platform is fixedly connected with a support arm at the middle rear position, the bottom of the support arm far away from one end of the processing platform is fixedly connected with a hydraulic column, the output end of the hydraulic column is fixedly connected with an upper pressing plate, a die is placed at the top of the processing platform at the middle position, a stamping device is arranged at the top of the processing platform at the rear side of the die, the outer wall of the left side of the die is fixedly connected with a connecting rod, the connecting rod is in sliding clamping connection with the processing platform, one end of the connecting rod far away from the die is fixedly connected with a transmission toothed plate, the bottom of the processing platform at the middle front side is fixedly connected with a positioning frame, the lower end of the positioning frame close to the die is rotatably connected with a power rotating rod through a bearing, the handle has been cup jointed by the front end activity of leaning on of power bull stick, and the handle can follow the power bull stick and stretch out and draw back around going on, and power bull stick and handle synchronous rotation, the front side outer wall fixedly connected with locating lever that leans on of processing platform, the one end and the handle joint of processing platform are kept away from to the locating lever, the rear end fixedly connected with power gear that leans on of power bull stick, power gear and driving toothed plate meshing.

Preferably, stamping device includes erect stake, reset spring, holding down plate, pushes down stake and meshing gear, erect stake and processing platform's top and be located the position activity of mould rear side and peg graft, the reset spring activity cup joints the outer wall of erecting the stake and is located the position of processing platform upside, reset spring lean on the upper end and the outer wall fixed connection who erects the stake, processing platform's top is located and has just seted up the through-hole to the position of mould, holding down plate activity joint is in the inside of through-hole, the bottom of holding down stake and holding down plate is located the position fixed connection of middle back partially, the right side wall of meshing gear rotates through the bearing and is connected with the spud pile, the top of spud pile and processing platform's bottom is located the position fixed connection of perpendicular stake and pushing down the middle right side of stake.

Preferably, the cross section of the upper pressure plate is in an inverted 'mountain' shape, so that the upper pressure plate can press the inside of the die and simultaneously press the bottom of the die by pushing the pressing device through the protrusion on the outer side.

Preferably, the die is a left-right opening and closing die, and the blank formed by punch forming in the die is conveniently taken out in a left-right opening and closing mode.

Preferably, the transmission pinion rack is total two, and two transmission pinion racks are for lieing in power gear's upper and lower both sides respectively and with the meshing of power gear, drive even a transmission pinion rack through power gear and be close to or move to the outside to the centre simultaneously to carry out compound die or divide the mould.

Preferably, the locating lever by the rear end for cylindrical, cylindrical part's locating lever and the breach looks adaptation of handle, it is dead fixed to carry out the card with the handle through locating lever cylindrical part, the locating lever is the toper by the front end, conveniently thinks the rear side with the handle and promotes to carry out the card die.

Preferably, the vertical pile is close to the front side outer wall and is located the position of processing platform bottom and has seted up the tooth's socket, and the tooth's socket has been seted up to the rear side outer wall that leans on of lower fender pile, and vertical pile and fender pile all mesh with the meshing gear, drive the meshing gear rotation when making vertical pile remove, and the meshing gear drives fender pile and rotates.

Compared with the prior art, the utility model provides a powder metallurgy uses mould possesses following beneficial effect:

1. this mould for powder metallurgy, set up the vertical pile, reset spring, the holding down plate, hold down pile and meshing gear down, when punching press, the hydraulic pressure post drives the top board downstream, the top board downstream promotes the vertical pile downstream when carrying out the punching press to the inside metal powder of mould, the vertical pile compresses reset spring down and drives meshing gear and rotates, meshing gear drives hold down pile rebound, the holding down pile drives holding down plate rebound down, upwards carry out the punching press to mould inside by the bottom through the holding down plate, make the inside atress of mould even, the mode of punching press has reduced inside mould shaping defective rate simultaneously in upper and lower both sides, and the quality of punching press has been improved.

2. This mould for powder metallurgy, set up the mould, the connecting rod, the transmission pinion rack, power gear, power bull stick and handle, after the punching press is accomplished, the handle is pulled to the front side, the handle breaks away from the locating lever, then anticlockwise rotation handle, the handle drives the power bull stick and rotates, the power bull stick drives power gear and rotates, power gear drives the transmission pinion rack and moves left, the transmission pinion rack drives the connecting rod and slides left, thereby the connecting rod pulls open the mould and carries out the die sinking, the idiosome after the stamping forming takes out the back, clockwise rotation handle, make the mould close once more, then it makes handle and locating lever joint fixed to promote the handle backward, thereby fix the mould, and is simple to operate convenient to use, thereby the efficiency of processing has been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is an enlarged view of a structure in fig. 2 according to the present invention.

Wherein: 1. a processing platform; 2. a chassis; 3. a support arm; 4. a hydraulic column; 5. an upper pressure plate; 6. a mold; 7. a stamping device; 71. erecting piles; 72. a return spring; 73. a lower pressing plate; 74. pressing the pile; 75. a meshing gear; 8. a connecting rod; 9. a transmission toothed plate; 10. a power gear; 11. a power rotating rod; 12. a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a die for powder metallurgy, which comprises a processing platform 1, a bottom frame 2 is fixedly connected with the bottom of the processing platform 1, a supporting arm 3 is fixedly connected with the top of the processing platform 1 and is positioned at the position behind the middle, a hydraulic column 4 is fixedly connected with the bottom of one end of the supporting arm 3 far away from the processing platform 1, an upper pressure plate 5 is fixedly connected with the output end of the hydraulic column 4, the cross section of the upper pressure plate 5 is inverted 'mountain' -shaped, so that the upper pressure plate 5 can press the inside of the die 6 and press the bottom of the die 6 by pushing a pressing device 7 by a bulge at the outer side, the die 6 is placed at the top of the processing platform 1 and is positioned at the middle position, the die 6 is a left-right opening and closing die, the blank body formed by press molding in the die 6 can be conveniently taken out by the left-right opening and closing mode, a pressing device 7 is arranged at the top of the processing platform 1 and is positioned at the rear side of the die 6, the outer wall of the left side of the mold 6 is fixedly connected with a connecting rod 8, the connecting rod 8 is in sliding clamping connection with the processing platform 1, one end, far away from the mold 6, of the connecting rod 8 is fixedly connected with two transmission toothed plates 9, the two transmission toothed plates are respectively positioned at the upper side and the lower side of the power gear 10 and are meshed with the power gear 10, the power gear 10 drives the two transmission toothed plates 9 to simultaneously move towards the middle or towards the outer side so as to carry out mold closing or mold separation, the position, at the bottom of the processing platform 1 and on the front side of the middle, is fixedly connected with a positioning frame, the lower end, close to the positioning frame, of the positioning frame is rotatably connected with a power rotating rod 11 through a bearing, the front end, close to the power rotating rod 11 is movably sleeved with a handle 12, the handle 12 can be stretched back and forth along the power rotating rod 11, the power rotating rod 11 and the handle 12 synchronously rotate, the outer wall, close to the front side of the processing platform 1 is fixedly connected with a positioning rod, the rear end of the positioning rod is cylindrical, the positioning rod of the cylindrical part is matched with a notch of the handle 12, the handle 12 is clamped and fixed through the cylindrical part of the positioning rod, the front end of the positioning rod is conical, the handle 12 is convenient to push to the rear side to clamp, one end of the positioning rod, far away from the processing platform 1, is clamped with the handle 12, the rear end of the power rotating rod 11, close to the power gear 10, is fixedly connected with the power gear 10, the power gear 10 is meshed with the transmission toothed plate 9, the die 6, the connecting rod 8, the transmission toothed plate 9, the power gear 10, the power rotating rod 11 and the handle 12 are arranged, after punching is completed, the handle 12 is pulled to the front side, the handle 12 is separated from the positioning rod, then the handle 12 is rotated anticlockwise, the handle 12 drives the power rotating rod 11 to rotate, the power rotating rod 11 drives the power gear 10 to rotate, the power gear 10 drives the transmission toothed plate 9 to move leftwards, the toothed plate 9 drives the connecting rod 8 to slide leftwards, thereby connecting rod 8 pulls open mould 6 and carries out the die sinking, takes out the idiosome after the stamping forming back, clockwise rotation handle 12 makes mould 6 carry out the closure once more, then promotes handle 12 backward and makes handle 12 fixed with the locating lever joint to fix mould 6, easy operation convenient to use has thereby improved the efficiency of processing.

The stamping device 7 comprises a vertical pile 71, a reset spring 72, a lower pressing plate 73, a lower pressing pile 74 and a meshing gear 75, wherein the vertical pile 71 is movably inserted with the top of the processing platform 1 and is positioned at the rear side of the die 6, the reset spring 72 is movably sleeved on the outer wall of the vertical pile 71 and is positioned at the upper side of the processing platform 1, the upper end of the reset spring 72 is fixedly connected with the outer wall of the vertical pile 71, the top of the processing platform 1 is provided with a through hole at the position facing the die 6, the lower pressing plate 73 is movably clamped inside the through hole, the lower pressing pile 74 is fixedly connected with the bottom of the lower pressing plate 73 at the position which is slightly behind the middle part, the right side wall of the meshing gear 75 is rotatably connected with a fixed pile through a bearing, the top of the fixed pile is fixedly connected with the bottom of the processing platform 1 and is positioned at the position which is slightly right between the vertical pile 71 and the lower pressing pile 74, the outer wall of the vertical pile 71 is provided with a tooth groove at the position which is slightly behind the bottom of the processing platform 1, the outer wall of the lower pressing pile 74 close to the rear side is provided with a tooth socket, the vertical pile 71 and the lower pressing pile 74 are meshed with the meshing gear 75, so that the vertical pile 71 drives the meshing gear 75 to rotate when moving, the meshing gear 75 drives the lower pressing pile 74 to rotate, the vertical pile 71, the return spring 72, the lower pressing plate 73, the lower pressing pile 74 and the meshing gear 75 are arranged, when punching is carried out, the hydraulic column 4 drives the upper pressing plate 5 to move downwards, the upper pressing plate 5 moves downwards to punch metal powder in the die 6 and simultaneously push the vertical pile 71 to move downwards, the vertical pile 71 compresses the return spring 72 downwards and drives the meshing gear 75 to rotate, the meshing gear 75 drives the lower pressing pile 74 to move upwards, the lower pressing pile 74 drives the lower pressing plate 73 to move upwards, the die 6 is punched from the bottom upwards through the lower pressing plate 73, so that the internal stress of the die is uniform, and the forming fraction of the internal die is reduced by the mode of simultaneous punching on the upper side and the lower side, and the quality of stamping is improved.

When the die is used, metal powder is added into the die 6, the hydraulic column 4 is started to enable the hydraulic column 4 to extend downwards, the hydraulic column 4 drives the upper pressing plate 5 to move downwards, the upper pressing plate 5 moves downwards to press the metal powder in the die 6 and simultaneously push the vertical piles 71 to move downwards, the vertical piles 71 compress the return springs 72 downwards and drive the meshing gears 75 to rotate, the meshing gears 75 drive the lower pressing piles 74 to move upwards, the lower pressing piles 74 drive the lower pressing plates 73 to move upwards, the interior of the die 6 is pressed from the bottom upwards through the lower pressing plates 73, so that the stress in the die is uniform, after the pressing is completed, the hydraulic column 4 is controlled to retract upwards, the return springs 72 push the vertical piles 71 to move upwards to restore the original position, then the handle 12 is pulled towards the front side, the handle 12 is separated from the positioning rod, then the handle 12 is rotated anticlockwise, the handle 12 drives the power rotating rod 11 to rotate, power bull stick 11 drives power gear 10 and rotates, power gear 10 drives transmission pinion rack 9 and moves left, transmission pinion rack 9 drives connecting rod 8 and slides left, thereby connecting rod 8 pulls open mould 6 and carries out the die sinking, the idiosome after the stamping forming takes out the back, clockwise rotation handle 12, make mould 6 carry out the closure once more, then it makes handle 12 fixed with the locating lever joint to promote handle 12 backward, thereby fix mould 6, and easy operation convenient to use, thereby the efficiency of processing has been improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mould for powder metallurgy, includes processing platform (1), its characterized in that: the bottom of the processing platform (1) is fixedly connected with an underframe (2), the top of the processing platform (1) is positioned at the middle rear position and is fixedly connected with a supporting arm (3), the bottom of one end of the supporting arm (3), far away from the processing platform (1), is fixedly connected with a hydraulic column (4), the output end of the hydraulic column (4) is fixedly connected with an upper pressing plate (5), the top of the processing platform (1) is positioned at the middle position and is provided with a mould (6), the top of the processing platform (1) is positioned at the rear side of the mould (6) and is provided with a stamping device (7), the outer wall of the left side of the mould (6) is fixedly connected with a connecting rod (8), the connecting rod (8) is in sliding clamping connection with the processing platform (1), one end of the connecting rod (8), far away from the mould (6), is fixedly connected with a transmission toothed plate (9), the bottom of the processing platform (1) is positioned at the middle front side position and is fixedly connected with a positioning frame, the utility model discloses a processing platform, including locating rack, power swivel becket, power gear (10) and driving toothed plate (9) meshing, the lower extreme that leans on of locating rack is rotated through the bearing and is connected with power swivel becket (11), handle (12) have been cup jointed in the front end activity of leaning on of power swivel becket (11), the front side outer wall fixedly connected with locating lever that leans on of processing platform (1), the one end and handle (12) joint that processing platform (1) were kept away from to the locating lever, the rear end fixedly connected with power gear (10) that leans on of power swivel becket (11), power gear (10) and driving toothed plate (9) meshing.

2. The die for powder metallurgy according to claim 1, wherein: the punching device (7) comprises a vertical pile (71), a reset spring (72), a lower pressing plate (73), a lower pressing pile (74) and a meshing gear (75), the vertical pile (71) is movably connected with the top of the processing platform (1) at the position of the rear side of the die (6) in an inserting mode, the reset spring (72) is movably sleeved on the outer wall of the vertical pile (71) and positioned at the position of the upper side of the processing platform (1), the reset spring (72) leans on the upper end of the outer wall of the vertical pile (71) to be fixedly connected with the outer wall of the vertical pile (71), the top of the processing platform (1) is positioned at the position of the die (6) to be provided with a through hole, the lower pressing plate (73) is movably connected inside the through hole in an inserting mode, the bottom of the lower pressing pile (74) and the lower pressing plate (73) is fixedly connected with the position of the middle part behind the lower pressing pile, the right side wall of the meshing gear (75) is rotatably connected with a fixed pile through a bearing, the top of the fixed pile is fixedly connected with the bottom of the processing platform (1) at a position which is arranged on the right side of the middle of the vertical pile (71) and the lower pressing pile (74).

3. The die for powder metallurgy according to claim 1, wherein: the cross section of the upper pressure plate (5) is inverted mountain-shaped.

4. The die for powder metallurgy according to claim 1, wherein: the die (6) is a left-right opening-closing die.

5. The die for powder metallurgy according to claim 1, wherein: the two transmission toothed plates (9) are respectively positioned on the upper side and the lower side of the power gear (10) and are meshed with the power gear (10).

6. The die for powder metallurgy according to claim 1, wherein: the rear end of the positioning rod is cylindrical, the positioning rod of the cylindrical part is matched with the notch of the handle (12), and the front end of the positioning rod is conical.

7. The die for powder metallurgy according to claim 2, wherein: tooth grooves are formed in the positions, close to the front side outer wall, of the vertical piles (71) and located at the bottom of the machining platform (1), tooth grooves are formed in the positions, close to the rear side outer wall, of the lower pressing piles (74), and the vertical piles (71) and the lower pressing piles (74) are meshed with the meshing gears (75).