CN215998700U - Die for powder metallurgy - Google Patents

Abstract

The utility model relates to the technical field of metallurgy, and discloses a die for powder metallurgy, which comprises a bottom plate, wherein the bottom plate is fixedly connected with a lower die body through a fixed column, the lower die body is connected with a tooth die body through a first sliding groove in a sliding manner, the inner wall of the lower side of the lower die body is connected with a push block through a cylindrical groove in a sliding manner, the inner wall of the push block is connected with a rod core in a sliding manner, and an auxiliary discharging device is arranged on the outer wall of the rod core and positioned close to the lower end face. This mould for powder metallurgy, the second hydraulic stem drives the excellent core and removes, the excellent core drives the swing board swing through connecting plate and first commentaries on classics round pin, the swing board promotes the sliding block and moves right through second commentaries on classics round pin and mounting groove, the sliding block contact makes the rotor plate rotate, the rotor plate makes annular lagging rebound through the baffle, position through second chute restriction second sliding plate, and second sliding plate fixed connection's tooth mould body moves to the outside, make tooth mould body and gear break away from, the gear of being convenient for breaks away from with the mould.

Description

Die for powder metallurgy

Technical Field

The utility model relates to the technical field of metallurgy, in particular to a die for powder metallurgy.

Background

Powder metallurgy is a process technique for producing metal powder or metal powder (or a mixture of metal powder and nonmetal powder) as a raw material, and then forming and sintering the raw material to produce metal materials, composite materials and various products. The forming of the gear needs to use a die for powder metallurgy to carry out compression forming, and the problem that the gear is difficult to separate from the die exists due to the structural characteristics of the gear.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a die for powder metallurgy, which solves the problem that a gear is difficult to separate from the die.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a powder metallurgy uses mould, includes the bottom plate, four fixed columns of last fixed surface fixedly connected with of bottom plate, the die body under the outer wall fixedly connected with of fixed column, the die body has the tooth die body through the first sliding tray sliding connection who sets up down, the downside inner wall of die body has the ejector pad through the cylinder groove sliding connection who sets up down, two first hydraulic stems of lower fixed surface fixedly connected with of ejector pad, the lower extreme fixedly connected with bottom plate of first hydraulic stem, the inner wall sliding connection of ejector pad has the excellent core, the lower terminal surface fixedly connected with second hydraulic stem of excellent core, the lower extreme fixedly connected with bottom plate of second hydraulic stem, the outer wall of excellent core is located the position that is close to down the terminal surface and installs supplementary discharging device.

Preferably, the auxiliary discharging device comprises a connecting plate, a swinging plate, a first chute, a sliding block, a vertical plate, a rotating plate, a first spring, a baffle plate, an annular sleeve plate, an annular groove, a second sliding groove, a first sliding plate, a second spring, a second chute and a second sliding plate, the outer wall of the rod core is fixedly connected with the connecting plate at a position close to the lower end face, the connecting plate is rotatably connected with the swinging plate through a first rotating pin, the upper surface of the bottom plate is provided with the first chute, the inner wall of the first chute is slidably connected with the sliding block, the upper surface of the sliding block is provided with a mounting groove, the inner wall of the mounting groove is rotatably connected with the lower end of the swinging plate through a second rotating pin, the upper surface of the bottom plate is fixedly connected with the vertical plate at a position on the left rear side of the first chute, and the upper end of the vertical plate is rotatably connected with the rotating plate through a third rotating pin, the lower end of the rotating plate extends into the first chute, the inner wall of the left side of the first chute is fixedly connected with a first spring, the right end of the first spring is fixedly connected with a rotating plate, the lower surface of the lower die body is provided with an annular groove, a second sliding groove is arranged on the inner wall of the annular groove, a first sliding plate is connected on the inner wall of the second sliding groove in a sliding manner, the right side surface of the first sliding plate is fixedly connected with an annular sleeve plate, the outer wall of the annular sleeve plate is fixedly connected with a baffle plate at a position close to the lower end surface, the lower surface of the baffle is contacted with the upper end of the rotating plate, the upper end surface of the annular sleeve plate is fixedly connected with a second spring, the upper end of the second spring is fixedly connected with an annular groove, the inner wall of the annular sleeve plate is provided with a second chute, the inner wall of the second chute is connected with a second sliding plate in a sliding mode, and the right side face of the second sliding plate is fixedly connected with a tooth die body.

Preferably, the left end of the tooth die body extends into the annular groove.

Preferably, the second springs are arranged in a ring shape, and the second springs are in a compressed state and play a role in assisting and fixing the ring-shaped sleeve plate.

Preferably, the included angle between the inner wall of the left side of the second chute and the reference surface of the right side is 1 degree, the friction force between the second sliding plate and the second chute is reduced, and the annular sleeve plate is prevented from being forced to move to influence the manufacturing precision of the gear.

Compared with the prior art, the utility model provides a die for powder metallurgy, which has the following beneficial effects:

1. this mould for powder metallurgy, the second hydraulic stem shrink drives the excellent core and removes, make excellent core and gear break away from, the connecting plate drives the swing board swing through first commentaries on classics round pin simultaneously, the swing board passes through the second and changes round pin and mounting groove promotion sliding block and remove right, the sliding block contact makes the rotor plate rotate, the rotor plate makes annular lagging rebound through the baffle, the position through second chute restriction second sliding plate simultaneously, and second sliding plate fixed connection's tooth mould moves to the outside, make tooth mould and gear break away from, the gear of being convenient for breaks away from with the mould.

2. This mould for powder metallurgy is through the setting that the contained angle of second chute left side inner wall and right side reference surface is 1, reduces the frictional force of second sliding plate and second chute, prevents that annular lagging atress from removing, influences the precision that the gear was made.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is an enlarged view of the structure of FIG. 1 at A according to the present invention;

fig. 3 is a schematic sectional view of the upper side of the present invention.

Wherein: 1. a base plate; 2. a lower die body; 3. a tooth mould body; 4. a push block; 5. a first hydraulic lever; 6. a rod core; 7. a second hydraulic rod; 8. an auxiliary discharging device; 81. a connecting plate; 82. a swing plate; 83. a first chute; 84. a slider; 85. a vertical plate; 86. a rotating plate; 87. a first spring; 88. a baffle plate; 89. an annular race plate; 810. an annular groove; 811. a second sliding groove; 812. a first sliding plate; 813. a second spring; 814. a second chute; 815. a second sliding plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a die for powder metallurgy, which comprises a bottom plate 1, wherein four fixed columns are fixedly connected to the upper surface of the bottom plate 1, lower die bodies 2 are fixedly connected to the outer walls of the fixed columns, the lower die bodies 2 are slidably connected with tooth die bodies 3 through first sliding grooves, the left ends of the tooth die bodies 3 extend into an annular groove 810, pushing blocks 4 are slidably connected to the inner walls of the lower sides of the lower die bodies 2 through cylindrical grooves, two first hydraulic rods 5 are fixedly connected to the lower surfaces of the pushing blocks 4, the bottom plate 1 is fixedly connected to the lower ends of the first hydraulic rods 5, rod cores 6 are slidably connected to the inner walls of the pushing blocks 4, second hydraulic rods 7 are fixedly connected to the lower end surfaces of the rod cores 6, the bottom plate 1 is fixedly connected to the lower ends of the second hydraulic rods 7, auxiliary discharging devices 8 are installed on the outer walls of the rod cores 6 and located close to the lower end surfaces, and each auxiliary discharging device 8 comprises a connecting plate 81, The swing plate 82, the first chute 83, the sliding block 84, the vertical plate 85, the rotating plate 86, the first spring 87, the resisting plate 88, the annular sleeve plate 89, the annular groove 810, the second sliding groove 811, the first sliding plate 812, the second spring 813, the second chute 814 and the second sliding plate 815, the connecting plate 81 is fixedly connected to the outer wall of the rod core 6 at a position close to the lower end face, the connecting plate 81 is rotatably connected to the swing plate 82 through a first rotating pin, the first chute 83 is arranged on the upper surface of the bottom plate 1, the sliding block 84 is slidably connected to the inner wall of the first chute 83, the mounting groove is arranged on the upper surface of the sliding block 84, the inner wall of the mounting groove is rotatably connected to the lower end of the swing plate 82 through a second rotating pin, the vertical plate 85 is fixedly connected to the upper surface of the bottom plate 1 at a position on the left rear side of the first chute 83, the rotating plate 86 is rotatably connected to the upper end of the vertical plate 85 through a third rotating pin, the lower end of the rotating plate 86 extends into the first chute 83, a first spring 87 is fixedly connected to the inner wall of the left side of the first chute 83, a rotating plate 86 is fixedly connected to the right end of the first spring 87, an annular groove 810 is formed in the lower surface of the lower die body 2, a second sliding groove 811 is formed in the inner wall of the annular groove 810, a first sliding plate 812 is slidably connected to the inner wall of the second sliding groove 811, an annular sleeve plate 89 is fixedly connected to the right side surface of the first sliding plate 812, a baffle 88 is fixedly connected to the outer wall of the annular sleeve plate 89 at a position close to the lower end surface, the lower surface of the baffle 88 contacts with the upper end of the rotating plate 86, a second spring 813 is fixedly connected to the upper end surface of the annular sleeve plate 89, the second spring 813 is annularly arranged, the second spring 813 is in a compressed state and plays a role in assisting and fixing of the annular sleeve plate 89, an annular groove 810 is fixedly connected to the upper end of the second spring 813, a second chute 814 is formed in the inner wall of the annular sleeve plate 89, an included angle between the inner wall of the left side of the second chute 814 and a reference surface of the right side is 1 degree, the friction force between the second sliding plate 815 and the second chute 814 is reduced, the annular sleeve plate 89 is prevented from being stressed to move, and the manufacturing precision of the gear is influenced, the second sliding plate 815 is connected to the inner wall of the second chute 814 in a sliding mode, the tooth mold body 3 is fixedly connected to the right side face of the second sliding plate 815, the second hydraulic rod 7 contracts to drive the rod core 6 to move, so that the rod core 6 is separated from the gear, meanwhile, the connecting plate 81 drives the swinging plate 82 to swing through the first rotating pin, the swinging plate 82 pushes the sliding block 84 to move rightwards through the second rotating pin and the mounting groove, the sliding block 84 is in contact with and enables the rotating plate 86 to rotate, the rotating plate 86 enables the annular sleeve plate 89 to move upwards through the abutting baffle 88, meanwhile, the position of the second sliding plate 815 is limited through the second chute 814, and the tooth mold body 3 fixedly connected with the second sliding plate 815 moves outwards, so that the tooth mold body 3 is separated from the gear, and the mold are convenient to separate from the gear.

In use, after the die-pressing is completed, the second hydraulic rod 7 is started to contract the second hydraulic rod 7, the second hydraulic rod 7 drives the rod core 6 to move downwards to separate the rod core 6 from the inner wall of the gear, meanwhile, the connecting plate 81 fixedly connected with the outer wall of the rod core 6 drives the swinging plate 82 to swing through the first rotating pin, the swinging plate 82 pushes the sliding block 84 to move rightwards through the rotating connection of the second rotating pin and the mounting groove, the swinging plate 82 is prevented from being stuck through the inclined arrangement of the first inclined groove 83, then the sliding block 84 contacts the rotating plate 86 and enables the rotating plate 86 to rotate through the third rotating pin and compresses the first spring 87, the upper end surface of the rotating plate 86 pushes the abutting plate 88 to move upwards, the annular sleeve plate 89 fixedly connected with the abutting plate 88 moves upwards through the sliding connection of the first sliding plate 812 and the second sliding groove 811 and compresses the second spring 813, and the position of the second sliding plate 815 is limited through the second inclined groove 814, and second sliding plate 815 fixed connection's tooth die body 3 moves to the outside, make tooth die body 3 and gear break away from, the gear of being convenient for breaks away from with the mould, start first hydraulic stem 5 after that, first hydraulic stem 5 upper end fixed connection's ejector pad 4 promotes the gear rebound, accomplish the drawing of patterns of gear, the contained angle through second chute 814 left side inner wall and right side reference surface is 1 setting simultaneously, reduce the frictional force of second sliding plate 815 and second chute 814, prevent that annular sleeve plate 89 atress from removing, influence the precision that the gear was made.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A die for powder metallurgy, comprising a base plate (1), characterized in that: the upper surface of the bottom plate (1) is fixedly connected with four fixing columns, the outer walls of the fixing columns are fixedly connected with a lower die body (2), the lower die body (2) is connected with a tooth die body (3) in a sliding way through a first sliding groove, the inner wall of the lower side of the lower die body (2) is connected with a push block (4) in a sliding way through a cylindrical groove, the lower surface of the push block (4) is fixedly connected with two first hydraulic rods (5), the lower end of the first hydraulic rod (5) is fixedly connected with a bottom plate (1), the inner wall of the push block (4) is connected with a rod core (6) in a sliding manner, the lower end surface of the rod core (6) is fixedly connected with a second hydraulic rod (7), the lower end of the second hydraulic rod (7) is fixedly connected with a bottom plate (1), and an auxiliary discharging device (8) is arranged on the outer wall of the rod core (6) and is positioned close to the lower end face.

2. The die for powder metallurgy according to claim 1, wherein: the auxiliary discharging device (8) comprises a connecting plate (81), a swinging plate (82), a first inclined groove (83), a sliding block (84), a vertical plate (85), a rotating plate (86), a first spring (87), a baffle plate (88), an annular sleeve plate (89), an annular groove (810), a second sliding groove (811), a first sliding plate (812), a second spring (813), a second inclined groove (814) and a second sliding plate (815), wherein the outer wall of the rod core (6) is fixedly connected with the connecting plate (81) at a position close to the lower end face, the connecting plate (81) is rotatably connected with the swinging plate (82) through a first rotating pin, the upper surface of the bottom plate (1) is provided with the first inclined groove (83), the inner wall of the first inclined groove (83) is slidably connected with the sliding block (84), the upper surface of the sliding block (84) is provided with a mounting groove, and the inner wall of the mounting groove is rotatably connected with the lower end of the swinging plate (82) through a second rotating pin, a vertical plate (85) is fixedly connected to the upper surface of the bottom plate (1) and located at the left rear side of the first chute (83), a rotating plate (86) is rotatably connected to the upper end of the vertical plate (85) through a third rotating pin, the lower end of the rotating plate (86) extends into the first chute (83), a first spring (87) is fixedly connected to the inner wall of the left side of the first chute (83), the rotating plate (86) is fixedly connected to the right end of the first spring (87), an annular groove (810) is formed in the lower surface of the lower die body (2), a second sliding groove (811) is formed in the inner wall of the annular groove (810), a first sliding plate (812) is slidably connected to the inner wall of the second sliding groove (811), an annular sleeve plate (89) is fixedly connected to the right side surface of the first sliding plate (812), and a stop plate (88) is fixedly connected to the outer wall of the annular sleeve plate (89) and located at a position close to the lower end surface, the lower surface of the baffle plate (88) is in contact with the upper end of the rotating plate (86), the upper end face of the annular sleeve plate (89) is fixedly connected with a second spring (813), the upper end of the second spring (813) is fixedly connected with an annular groove (810), a second inclined groove (814) is formed in the inner wall of the annular sleeve plate (89), a second sliding plate (815) is connected to the inner wall of the second inclined groove (814) in a sliding mode, and a tooth die body (3) is fixedly connected to the right side face of the second sliding plate (815).

3. The die for powder metallurgy according to claim 2, wherein: the left end of the tooth die body (3) extends into the annular groove (810).

4. The die for powder metallurgy according to claim 2, wherein: the second springs (813) are arranged in a ring shape, and the second springs (813) are in a compressed state.

5. The die for powder metallurgy according to claim 2, wherein: the included angle between the inner wall of the left side of the second chute (814) and the reference plane of the right side is 1 degree.

Images