CN213002638U - Powder metallurgy gear forming die - Google Patents
Powder metallurgy gear forming die Download PDFInfo
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- CN213002638U CN213002638U CN202021849901.5U CN202021849901U CN213002638U CN 213002638 U CN213002638 U CN 213002638U CN 202021849901 U CN202021849901 U CN 202021849901U CN 213002638 U CN213002638 U CN 213002638U
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Abstract
The utility model relates to a powder metallurgy technical field especially discloses a powder metallurgy gear forming die, which comprises a bracket, install the workstation on the support, the workstation upper end is equipped with the pressfitting, the workstation up end is equipped with the gear mould chamber, lie in on the workstation the position of gear mould chamber both sides is equipped with feeder equipment and first dead lever respectively, first dead lever with be connected with between the workstation and pop out the subassembly. The utility model provides a powder metallurgy gear forming die, wherein pop out mutually supporting between the part in the subassembly, the effect of presswork in addition for the material can fully be filled to the corner position distribution of gear die cavity even, and help the shaping gear to pop out from the gear die cavity in a flexible way, the manual work of being convenient for takes out, thereby avoids taking out inconvenient and cause the problem of product damage to appear, has improved work efficiency to a certain extent greatly.
Description
Technical Field
The utility model relates to a powder metallurgy technical field especially relates to a powder metallurgy gear forming die.
Background
Powder metallurgy is a process method which utilizes a press to press and form metal powder into a cake shape, a step shape and other fixed shapes, and then the metal powder is sintered to form a metal product after the metal powder is formed.
The gear is manufactured by the powder metallurgy technology, and the gear is subjected to multiple processes such as powder making, molding, sintering and post-treatment, wherein the powder material is put into a die in the molding process, and is pressed and molded under certain pressure, the gear die in the prior art has the problem of inconvenience in taking out during working, and the improper gear die can cause product damage, so that the production efficiency of the gear is not high.
To above problem, the utility model provides a powder metallurgy gear forming die.
SUMMERY OF THE UTILITY MODEL
The utility model aims to avoid the problem that a powder metallurgy gear forming die is provided, wherein mutually support between the part in popping out the subassembly, the effect of presswork in addition, make the material can fully fill to the corner position of gear mold chamber, it is even to be favorable to the material distribution in the silica gel pad, and help the forming gear to pop out from the gear mold chamber in a flexible way at the in-process of suppression, make and be in not hard up state between gear and the die cavity, be convenient for the manual work take out, thereby avoid taking out inconvenient and cause the problem of product damage to appear, work efficiency has been improved greatly to a certain extent.
The utility model discloses avoid the technical scheme that above-mentioned technical problem adopted to be: the utility model provides a powder metallurgy gear forming die, includes the support, install the workstation on the support, the workstation upper end is equipped with the pressfitting, the workstation up end is equipped with the gear die cavity, lie in on the workstation the position of gear die cavity both sides is equipped with feeder equipment and first dead lever respectively, first dead lever with be connected with between the workstation and pop out the subassembly.
The pop-up assembly comprises a first wire groove arranged in the workbench and a second wire groove arranged in the first fixing rod, and the first wire groove is communicated with the second wire groove; two third wire grooves are formed in the position, close to the first wire groove, in the workbench, one end of each third wire groove is communicated with the gear mold cavity, the other end of each third wire groove is communicated with the first wire groove, and a protruding block is connected in each third wire groove in a sliding mode; and a first limiting plate is arranged at the position where the third wire groove is communicated with the first wire groove, and a first telescopic spring is connected between the first limiting plate and the extension block.
A fixed cylinder is arranged on the side, opposite to the pressed part, of the first fixed rod, the fixed cylinder is communicated with the second linear groove, a sliding rod is connected in the fixed cylinder in a sliding mode, one end, located outside the fixed cylinder, of the sliding rod is connected with a protruding block, and a wheel groove is formed in the outer edge of the protruding block; and a second limiting plate is arranged at the position where the fixed cylinder is communicated with the second wire groove, and a second telescopic spring is connected between the second limiting plate and the sliding rod.
The connecting part of the first wire groove and the third wire groove is provided with a pulley, and the corners of the first wire groove and the second wire groove are also provided with the pulley.
Preferably, one end of the sliding rod, which is located inside the fixed cylinder, is connected with a pull rope, the pull rope is arranged along the second wire groove, the first wire groove and the third wire groove, and the tail end of the pull rope is divided into two strands which are respectively connected with the lower ends of the two extending blocks.
Preferably, a silica gel pad is placed in the gear cavity, the silica gel pad is consistent in shape with the gear cavity, a clamping block is arranged on the outer edge of the silica gel pad, a clamping groove matched with the clamping block is formed in the workbench, and the silica gel pad is clamped with the workbench through the clamping block and the clamping groove to be fixed.
Preferably, the pressing piece comprises a second fixing rod fixed on the workbench, a hydraulic cylinder is mounted on the second fixing rod, the lower end of a telescopic rod of the hydraulic cylinder is connected with a pressing plate, and a gear pressing die matched with the gear die cavity is mounted at the lower end of the pressing plate; the pressing plate is opposite to the side wall of the first fixing rod, and is rotatably connected with a roller, and the roller is matched with the wheel groove.
Preferably, a feeding through groove is formed in the position, between the gear die cavity and the feeding device, of the workbench, a feeding pipe is installed in the feeding through groove, one end of the feeding pipe is communicated with the feeding device, and the other end of the feeding pipe extends into the gear die cavity and penetrates through the silica gel pad.
Compared with the prior art, the technical scheme of the utility model have following advantage:
1. the utility model provides a powder metallurgy gear forming die, wherein mutually support between the part in popping out the subassembly, the effect of presswork in addition, make the material can fully fill to the corner position of gear mold chamber, it is even to be favorable to the material distribution in the silica gel pad, and help the forming gear to pop out from the gear mold chamber in a flexible way at the in-process of suppression, make and be in not hard up state between gear and the die cavity, the manual work of being convenient for takes out, thereby avoid taking out inconvenient and cause the problem of product damage to appear, work efficiency has been improved greatly to a certain extent.
2. The utility model provides a powder metallurgy gear forming die, wherein when pneumatic cylinder in the pressfitting promotes pressboard and gear moulding-die downstream, the gyro wheel, the race, the slide bar, a solid fixed cylinder, mutually support between second limiting plate and the second expanding spring, make and stretch out the piece and not released to the outside suitable position of third wire groove by first expanding spring by the restriction of stay cord, stretch out the piece promptly and stretch out to gear die intracavity portion, be stretched out the piece in the middle of the silica gel pad and prop up, make the material can fully fill to corner position, it is even to be favorable to the material distribution in the silica gel pad.
3. The utility model provides a powder metallurgy gear forming die, after the suppression is accomplished, pneumatic cylinder pulling pressboard and gear moulding-die rebound, the gyro wheel, the wheel groove, the slide bar, a fixed cylinder, mutually support between second limiting plate and the second expanding spring, make and stretch out the piece and stretch out to gear die cavity inside, the piece is stretched out to the middle of the silica gel pad and is propped up, thereby release gear die cavity with the silica gel pad together with the compression moulding gear, when pressboard and gear moulding-die remove protrusion piece upper end position, stretch out the piece and be pulled into third thread inslot suitable position again, be in not hard up state between fashioned gear this moment and the die cavity, be convenient for the manual work and take out.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partially enlarged schematic view of a portion a in fig. 1 according to the present invention.
Wherein: the automatic feeding device comprises a support 1, a workbench 2, a feeding through groove 20, a feeding pipe 200, a pressed piece 3, a second fixing rod 31, a hydraulic cylinder 32, a pressing plate 33, a gear pressing die 34, a roller 35, a gear die cavity 4, a silica gel pad 41, a clamping block 42, a clamping groove 43, a feeding device 5, a first fixing rod 6, a popping assembly 7, a first wire groove 71, a first limiting plate 710, a first telescopic spring 7100, a second wire groove 72, a second limiting plate 720, a second telescopic spring 7200, a third wire groove 73, an extending block 74, a fixing cylinder 75, a sliding rod 76, a protruding block 77, a wheel groove 770, a pulley 78 and a rope 79.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1-2, a powder metallurgy gear forming die comprises a support 1, wherein a workbench 2 is mounted on the support 1, a pressed piece 3 is arranged at the upper end of the workbench 2, a gear cavity 4 is arranged on the upper end face of the workbench 2, the pressed piece 3 is opposite to the gear cavity 4, feeding equipment 5 and a first fixing rod 6 are respectively arranged at positions, located on two sides of the gear cavity 4, of the workbench 2, and a pop-up assembly 7 is connected between the first fixing rod 6 and the workbench 2.
A silica gel pad 41 is placed in the gear cavity 4, the shape of the silica gel pad 41 is consistent with that of the gear cavity 4, a clamping block 42 is arranged on the outer edge of the silica gel pad 41, a clamping groove 43 matched with the clamping block 42 is formed in the workbench 2, and the silica gel pad 41 is clamped with the clamping groove 43 through the clamping block 42 to be fixed with the workbench 2.
The position that lies in between gear mold cavity 4 and the feeder equipment 5 in the workstation 2 is equipped with the logical groove 20 of pay-off, installs conveying pipe 200 in the logical groove 20 of pay-off, and conveying pipe 200's one end is linked together with feeder equipment 5, and the other end stretches into in the gear mold cavity 4 and runs through silica gel pad 41 for the material can enter into the gear mold cavity 4 that has silica gel pad 41 through conveying pipe 200.
In specific work, the material is output from the feeding device 5, passes through the feeding pipe 200, enters the gear cavity 4 with the silica gel pad 41, and is pressed by the pressing piece 3, so that the gear is formed.
Referring to fig. 2, the pop-up assembly 7 includes a first wire slot 71 disposed in the working platform 2 and a second wire slot 72 disposed in the first fixing rod 6, the first wire slot 71 and the second wire slot 72 are communicated; two third wire grooves 73 are formed in the position, close to the first wire groove 71, in the workbench 2, one end of each third wire groove 73 is communicated with the gear cavity 4, the other end of each third wire groove 73 is communicated with the first wire groove 71, an extending block 74 is connected in the third wire grooves 73 in a sliding mode, and the extending blocks 74 are close to the gear cavity 4; a first limiting plate 710 is arranged at a position where the third linear groove 73 is communicated with the first linear groove 71, a through hole is formed in the middle of the first limiting plate 710, and a first expansion spring 7100 is connected between the first limiting plate 710 and the extension block 74; under the normal condition, the extension block 74 is extended from the third wire slot 73 to a proper position inside the gear cavity 4 by the action of the first extension spring 7100.
A fixed cylinder 75 is arranged on the side of the first fixed rod 6 opposite to the pressed piece 3, the fixed cylinder 75 is communicated with the second linear groove 72, a sliding rod 76 is connected in the fixed cylinder 75 in a sliding manner, one end of the sliding rod 76, which is positioned outside the fixed cylinder 75, is connected with a protruding block 77, and the outer edge of the protruding block 77 is provided with a wheel groove 770; a second limit plate 720 is arranged at the position where the fixed cylinder 75 is communicated with the second wire groove 72, a through hole is also arranged in the middle of the first limit plate 710, a second expansion spring 7200 is connected between the second limit plate 720 and the sliding rod 76, and the acting force of the second expansion spring 7200 is greater than that of the two first expansion springs 7100; under the normal state, the slide bar 76 is extended from the fixed cylinder 75 by the second extension spring 7200, so that the projection block 77 is spaced from the pressing member 3 to a proper position.
A pulley 78 is arranged at the joint of the first wire groove 71 and the third wire groove 73, and a pulley 78 is also arranged at the corner of the first wire groove 71 and the second wire groove 72.
One end of the sliding rod 76, which is located inside the fixed cylinder 75, is connected with a pulling rope 79, the pulling rope 79 is arranged along the second wire groove 72, the first wire groove 71 and the third wire groove 73, the pulling rope 79 passes through a second telescopic spring 7200 and a second limiting plate 720, enters the first wire groove 71 along the second wire groove 72 through a pulley 78, enters the third wire groove 73 through the pulley 78, and the tail end of the pulling rope 79 is divided into two strands to enter the two third wire grooves 73, passes through the first limiting plate 710 and the first telescopic spring 7100, and is finally connected with the lower ends of the two extending blocks 74 respectively; under the normal state, the extension block 74 is pulled into the proper position in the third wire groove 73 by the pull rope 79 under the action of the second telescopic spring 7200, the sliding rod 76 and the pull rope 79, so that the lower surface of the gear mold cavity 4 is kept intact.
The pressed piece 3 comprises a second fixing rod 31 fixed on the workbench 2, a hydraulic cylinder 32 is installed on the second fixing rod 31, the lower end of a telescopic rod of the hydraulic cylinder 32 is connected with a pressing plate 33, and a gear pressing die 34 matched with the gear cavity 4 is installed at the lower end of the pressing plate 33; the pressing plate 33 is rotatably connected with a roller 35 opposite to the side wall of the first fixing rod 6, and the roller 35 is adapted to the roller groove 770; the pressing plate 33 with the gear press 34 is normally higher than the protruding block 77.
In specific work, materials enter the gear cavity 4 with the silicone cushion 41, then the hydraulic cylinder 32 pushes the pressing plate 33 and the gear pressing die 34 to move downwards, when the pressing plate moves to the position near the protruding block 77, the roller 35 enters the wheel groove 770, the roller 35, the wheel groove 770, the sliding rod 76, the fixed cylinder 75, the second limiting plate 720 and the second telescopic spring 7200 are mutually matched, so that the protrusion block 77 and the sliding rod 76 press the second telescopic spring 7200 together to move toward the inside of the fixed cylinder 75, while the pulling rope 79 connected to one end of the sliding rod 76 is loosened, so that the protruding block 74 is pushed out to a proper position outside the third wire slot 73 by the first expansion spring 7100 without being restricted by the pulling rope 79, namely, the extension block 74 extends to the inside of the gear cavity 4, the middle of the silicone pad 41 is supported by the extension block 74, so that the material can be fully filled to the corner position, and the material in the silica gel pad 41 can be uniformly distributed.
When the pressing plate 33 and the gear pressing die 34 move to the lower end position of the protruding block 77, under the action of the second telescopic spring 7200, the sliding rod 76 and the pull rope 79, the protruding block 74 is pulled into a proper position in the third wire groove 73 by the pull rope 79, so that the lower surface of the gear cavity 4 is kept complete, the lower surface of the silicone pad 41 is also restored to be flat, and the pressing plate 33 and the gear pressing die 34 continue to move downwards to press the materials in the gear cavity 4.
After pressing is completed, the hydraulic cylinder 32 pulls the pressing plate 33 and the gear pressing die 34 to move upwards, when the pressing plate and the gear pressing die 34 move to the position close to the protruding block 77, the roller 35 enters the roller groove 770, the roller 35, the roller groove 770, the sliding rod 76, the fixed cylinder 75, the second limiting plate 720 and the second telescopic spring 7200 are matched with each other, so that the protruding block 74 extends into the gear die cavity 4, the middle of the silicone pad 41 is supported by the protruding block 74, the silicone pad 41 and the press-formed gear are pushed out of the gear die cavity 4, when the pressing plate 33 and the gear pressing die 34 move to the upper end position of the protruding block 77, the protruding block 74 is pulled into a proper position in the third wire groove 73, at the moment, the formed gear and the die cavity are in a loose state, and manual.
The utility model discloses mutually support between the part in the pop-up subassembly 7 that well set up, the effect of presswork 3 in addition, make the material can fully fill to gear moulding chamber 4 corner position, it is even to be favorable to the material distribution in the silica gel pad 41, and help the shaping gear to pop out from gear moulding chamber 4 in a flexible way at the in-process of suppression, make to be in not hard up state between gear and the die cavity, be convenient for the manual work take out, thereby avoid taking out inconvenient and cause the problem of product damage to appear, work efficiency has been improved greatly to a certain extent.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a powder metallurgy gear forming die, includes support (1), install workstation (2) on support (1), its characterized in that: a pressed part (3) is arranged at the upper end of the workbench (2), a gear mold cavity (4) is arranged on the upper end surface of the workbench (2), feeding equipment (5) and a first fixing rod (6) are respectively arranged at positions, located on two sides of the gear mold cavity (4), on the workbench (2), and an ejection assembly (7) is connected between the first fixing rod (6) and the workbench (2);
the pop-up assembly (7) comprises a first wire groove (71) arranged in the workbench (2) and a second wire groove (72) arranged in the first fixing rod (6), and the first wire groove (71) is communicated with the second wire groove (72); two third wire grooves (73) are formed in the position, close to the first wire groove (71), in the workbench (2), one end of each third wire groove (73) is communicated with the gear mold cavity (4), the other end of each third wire groove (73) is communicated with the first wire groove (71), and each third wire groove (73) is connected with an extending block (74) in a sliding mode; a first limit plate (710) is arranged at the position where the third wire groove (73) is communicated with the first wire groove (71), and a first telescopic spring (7100) is connected between the first limit plate (710) and the extension block (74);
a fixed cylinder (75) is arranged on the side, facing the pressed part (3), of the first fixed rod (6), the fixed cylinder (75) is communicated with the second wire groove (72), a sliding rod (76) is connected in the fixed cylinder (75) in a sliding mode, a protruding block (77) is connected to one end, located outside the fixed cylinder (75), of the sliding rod (76), and a wheel groove (770) is formed in the outer edge of the protruding block (77); a second limit plate (720) is arranged at the position where the fixed cylinder (75) is communicated with the second wire groove (72), and a second telescopic spring (7200) is connected between the second limit plate (720) and the sliding rod (76);
the junction of first wire casing (71) with third wire casing (73) is equipped with pulley (78), first wire casing (71) with the corner of second wire casing (72) also is equipped with pulley (78).
2. The powder metallurgy gear forming die of claim 1, wherein: one end of the sliding rod (76) located inside the fixed cylinder (75) is connected with a pull rope (79), the pull rope (79) is arranged along the second wire groove (72), the first wire groove (71) and the third wire groove (73), and two strands are divided from the tail end of the pull rope (79) and are respectively connected with the lower ends of the two extending blocks (74).
3. The powder metallurgy gear forming die of claim 1, wherein: placed silica gel pad (41) in gear moulding chamber (4), the shape of silica gel pad (41) with gear moulding chamber (4) shape is unanimous, the outward flange of silica gel pad (41) is equipped with joint piece (42), be equipped with on workstation (2) with joint piece (42) assorted joint groove (43), silica gel pad (41) pass through joint piece (42) with joint groove (43) joint realize with the fixed of workstation (2).
4. A powder metallurgy gear forming die as claimed in claim 3, wherein: the pressing piece (3) comprises a second fixing rod (31) fixed on the workbench (2), a hydraulic cylinder (32) is mounted on the second fixing rod (31), the lower end of a telescopic rod of the hydraulic cylinder (32) is connected with a pressing plate (33), and a gear pressing die (34) matched with the gear die cavity (4) is mounted at the lower end of the pressing plate (33); the pressing plate (33) is opposite to the side wall of the first fixing rod (6) and is rotatably connected with a roller (35), and the roller (35) is matched with the wheel groove (770).
5. The powder metallurgy gear forming die of claim 4, wherein: the gear die cavity (4) and the feeding device (5) are arranged between the positions in the workbench (2) and are provided with feeding through grooves (20), feeding pipes (200) are installed in the feeding through grooves (20), one ends of the feeding pipes (200) are communicated with the feeding device (5), and the other ends of the feeding pipes extend into the gear die cavity (4) and penetrate through the silica gel pads (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021849901.5U CN213002638U (en) | 2020-08-28 | 2020-08-28 | Powder metallurgy gear forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021849901.5U CN213002638U (en) | 2020-08-28 | 2020-08-28 | Powder metallurgy gear forming die |
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| Publication Number | Publication Date |
|---|---|
| CN213002638U true CN213002638U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021849901.5U Active CN213002638U (en) | 2020-08-28 | 2020-08-28 | Powder metallurgy gear forming die |
Country Status (1)
| Country | Link |
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| CN (1) | CN213002638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116393698A (en) * | 2023-06-07 | 2023-07-07 | 哈尔滨学院 | Metal powder metallurgy gear processing die |
-
2020
- 2020-08-28 CN CN202021849901.5U patent/CN213002638U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116393698A (en) * | 2023-06-07 | 2023-07-07 | 哈尔滨学院 | Metal powder metallurgy gear processing die |
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