CN216263461U - A mold for powder metallurgy forming - Google Patents

Abstract

The utility model discloses a die for powder metallurgy forming, which relates to the technical field of forming dies and comprises a base, a movable plate and an upper die, wherein the lower surface of the movable plate is provided with a mounting groove, the upper surface of the upper die is fixedly provided with a mounting block, the outer side of the mounting block is provided with a clamping groove, the inner part of the movable plate is provided with a spring groove, the inner part of the spring groove is fixedly provided with an expansion spring, one end of the expansion spring is fixedly connected with a clamping block, and the clamping block is matched with the clamping groove, so that the die has the beneficial effects that: the fixture block that sets up receives expanding spring's elasticity, tightly blocks in the draw-in groove to rotatable extension rod control gear rotates, thereby pushes up the kicking block of rack one end at the inner wall of spacing groove, presses the extension rod at last, makes spacing post card advance spacing hole, can accomplish the installation, thereby has improved the stability between last mould and the fly leaf, has also reached the effect of last mould installation and dismantlement of being convenient for simultaneously.

Description

A mold for powder metallurgy forming

technical field

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

Background technique

Powder metallurgy is a process technology for preparing metal powder or using metal powder as raw material, after forming and sintering, to manufacture metal materials, composite materials and various types of products. Powder metallurgy forming is one of the basic processes in powder metallurgy production. The purpose is to The loose powder is pressed in a mold to form a semi-finished product with a predetermined geometry, size, density and strength, and then a semi-finished product is obtained by demolding.

However, the practicability of the existing powder metallurgy forming mold is low, the upper mold is easily damaged after long-term use, so it is inconvenient to disassemble and replace it, and the function is poor, and a large amount of metal powder remains in the forming cavity after processing. , Untreated for a long time, it is easy to adhere to the inner wall of the molding cavity.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a mold for powder metallurgy forming, which solves the problems of low practicability and poor functionality in the above-mentioned background technology.

In order to achieve the above purpose, the utility model is realized through the following technical solutions: a mold for powder metallurgy forming, comprising a base, a movable plate and an upper mold, the lower surface of the movable plate is provided with a mounting groove, and the upper mold of the upper mold is provided with a mounting groove. A mounting block is fixedly installed on the surface, a card slot is opened on the outer side of the mounting block, a spring groove is opened inside the movable plate, a telescopic spring is fixedly installed inside the spring groove, and one end of the telescopic spring is fixedly connected with a A clamping block, the clamping block is adapted to the clamping slot, a limiting slot is set inside the clamping block, a rack is slidably connected to the inside of the movable plate, and the rack penetrates the clamping block and extends to the limiting slot One end of the rack is provided with a top block, the inside of the movable plate is rotatably connected with a rotating shaft, the lower end of the rotating shaft is fixedly connected with a gear, and the gear is meshed with the rack.

By using the above technical solution, the rotation of the gear is controlled by rotating the extension rod, and under the action of the meshing connection between the gear and the rack, the rack can be controlled to move, thereby driving the clamping block away from the clamping slot, and the upper mold can be disassembled. , turn the extension rod to reset the block, and control the top block to be located on one side of the limit groove, and then clamp the first slider on the upper surface of the upper die into the installation groove, at this time, the block uses the slope on its side to automatically move to the side. The direction of the spring groove moves. When the first slider and the installation groove are completely overlapped, the clamping block is tightly clamped in the clamping groove by the elastic force of the telescopic spring, and the extension rod can be rotated to control the rotation of the gear, so that the end of the rack can be moved. The top block is pressed against the inner wall of the limit slot, and finally the extension rod is pressed, so that the limit post is clamped into the limit hole, and the installation can be completed, thereby improving the stability between the upper mold and the movable plate, and at the same time reaching the upper limit. The mold is easy to install and remove.

Preferably, the upper surface of the base is provided with a molding cavity, and the interior of the base is provided with an exhaust hole.

By using the above technical solution, the metal powder can be placed in the molding cavity, and then subjected to the pressure of the upper mold, thereby making the semi-finished product.

Preferably, sliding bars are provided on the upper surface of the base near the four corners, and the movable plate is slidably connected to the sliding bars.

By using the above technical solution, the upper surface of the movable plate can be connected with the hydraulic device of the peripheral device, so as to control the up and down movement of the upper mold, and the sliding rod can provide an effective limit effect.

Preferably, a first sliding slot is opened inside the base, a first sliding block is slidably connected to the inside of the first sliding slot, a connecting plate is fixedly installed on the upper surface of the first sliding block, and the base of the base is slidably connected. A motor is fixedly installed on the outside, an output end of the motor is connected with a screw rod, and the screw rod is threadedly connected with the first slider.

By using the above technical solution, the provided motor can control the rotation of the screw rod, thereby driving the first slider to slide inside the first chute, thereby controlling the connecting plate to move, so that the powder suction tray is located above the molding cavity.

Preferably, a storage box and an air pump are respectively fixed on the upper surface of the connecting plate, a sealing plug is movably connected to one side of the storage box, a powder suction tray is arranged on the lower surface of the connecting plate, and two parts of the air pump are installed. The output ends are respectively connected with the storage box and the powder suction tray.

By using the above technical solution, the residual powder inside the molding cavity is adsorbed to the interior of the storage box by the air pump, which improves the functionality of the device and solves the problem that the metal powder adheres to the molding cavity after being left untreated for a long time in the prior art. inner wall problem.

Preferably, one end of the rotating shaft is provided with an extension rod, the inner side of the rotating shaft is provided with a second chute, the outer side of the extension rod is fixedly installed with a second slider, the second slider and the second chute In the sliding connection, the outer side of the movable plate is provided with a limiting hole, and the outer side of the extension rod is provided with a limiting column, and the limiting column is adapted to the limiting hole.

By using the above technical solution, the gear can be limited, so that the clamping block is tightly clamped in the clamping groove.

The utility model provides a mold for powder metallurgy forming, which has the following beneficial effects:

1. The powder metallurgy forming mold controls the rotation of the gear by rotating the extension rod. Under the meshing connection between the gear and the rack, the rack can be controlled to move, so as to drive the block away from the groove, and the upper mold can be disassembled. , During installation, rotate the extension rod to reset the block, and at the same time control the top block to be located on one side of the limit groove, and then clamp the first slider on the upper surface of the upper mold into the installation groove. At this time, the block uses its side The inclined plane automatically moves in the direction of the spring groove. When the first sliding block and the installation groove are completely coincident, the clamping block is tightly clamped in the clamping groove by the elastic force of the telescopic spring, and the extension rod can be rotated to control the rotation of the gear, so that the tooth The top block at one end of the strip rests on the inner wall of the limit slot, and finally presses the extension rod to make the limit post snap into the limit hole to complete the installation, thereby improving the stability between the upper mold and the movable plate, and also. The effect of easy installation and disassembly of the upper mold is achieved.

2. The powder metallurgy forming mold can control the rotation of the screw rod through the provided motor, so as to drive the first slider to slide inside the first chute, and then control the connecting plate to move, so that the powder suction disc is located in the forming cavity Then start the air pump to adsorb the residual powder inside the molding cavity to the inside of the storage box, which improves the functionality of the device and solves the problem that the metal powder adheres to the inner wall of the molding cavity if it is not processed for a long time in the prior art.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the enlarged view of A place in the utility model Fig. 1;

FIG. 3 is an enlarged view of B in FIG. 1 of the utility model.

In the figure: 1. base; 2. movable plate; 3. motor; 4. first chute; 5. first sliding block; 6. screw rod; 7. connecting plate; 8. molding cavity; ;10, powder suction tray; 11, storage box; 12, air pump; 13, sealing plug; 14, upper mold; 15, installation block; 16, second chute; 17, card slot; 18, installation slot; Block; 20, limit slot; 21, top block; 22, rack; 23, spring slot; 24, telescopic spring; 25, shaft; 26, gear; 27, second slider; 28, limit column; 29. Limit hole; 30. Slide rod; 31. Extension rod.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1 to 3, the present utility model provides a technical solution: a powder metallurgy forming mold, comprising a base 1, a movable plate 2 and an upper mold 14, the upper surface of the base 1 is provided with a forming cavity 8, the base 1 There is an exhaust hole 9 inside, and the upper surface of the base 1 is provided with sliding rods 30 near the four corners. , so as to control the up and down movement of the upper mold 14 , and the provision of the sliding bar 30 has an effective limiting effect.

The lower surface of the movable plate 2 is provided with a mounting groove 18, the upper surface of the upper die 14 is fixedly installed with a mounting block 15, the outer side of the mounting block 15 is provided with a clamping groove 17, and the interior of the movable plate 2 is provided with a spring groove 23, the spring groove 23 A telescopic spring 24 is fixedly installed inside the telescopic spring 24, one end of the telescopic spring 24 is fixedly connected with a clamping block 19, and one side of the clamping block 19 is provided with a slope. The direction of the slot 23 moves, the clamping block 19 is adapted to the clamping slot 17, the interior of the clamping block 19 is provided with a limiting slot 20, and the interior of the movable plate 2 is slidably connected with a rack 22, and the rack 22 penetrates the clamping block 19 and extends to In the inner cavity of the limiting slot 20, one end of the rack 22 is provided with a top block 21, a rotating shaft 25 is rotatably connected to the inside of the movable plate 2, and a gear 26 is fixedly connected to the lower end of the rotating shaft 25. The gear 26 is meshed with the rack 22, and the rotating shaft One end of 25 is provided with an extension rod 31, the inner side of the rotating shaft 25 is provided with a second chute 16, the outer side of the extension rod 31 is fixedly installed with a second slider 27, and the second slider 27 is slidably connected with the second chute 16 to enable To prevent the relative rotation of the extension rod 31 and the rotating shaft 25, a limit hole 29 is provided on the outer side of the movable plate 2, and a limit column 28 is arranged on the outer side of the extension rod 31. The extension rod 31 controls the rotation of the gear 26. Under the meshing connection between the gear 26 and the rack 22, the rack 22 can be controlled to move, thereby driving the block 19 away from the slot 17, and the upper mold 14 can be disassembled. , rotate the extension rod 31 to reset the clamping block 19, at the same time control the top block 21 to be located on one side of the limit groove 20, and then clamp the first slider 5 on the upper surface of the upper mold 14 into the installation groove 18, at this time the clamping block 19 automatically moves in the direction of the spring groove 23 by using the inclined surface of its side. When the first sliding block 5 is completely overlapped with the installation groove 18, the blocking block 19 is subjected to the elastic force of the telescopic spring 24, and is tightly stuck in the blocking groove 17, and The rotatable extension rod 31 controls the rotation of the gear 26, so that the top block 21 at one end of the rack 22 is pressed against the inner wall of the limit slot 20, and finally the extension rod 31 is pressed, so that the limit post 28 is clamped into the limit hole 29. The installation is completed, thereby improving the stability between the upper mold 14 and the movable plate 2, and at the same time achieving the effect that the upper mold 14 is easy to install and disassemble.

The inside of the base 1 is provided with a first chute 4 , the inside of the first chute 4 is slidably connected with a first sliding block 5 , the upper surface of the first sliding block 5 is fixedly installed with a connecting plate 7 , and the outer side of the base 1 is fixedly installed with a first sliding block 5 . The motor 3, the output end of the motor 3 is connected with a lead screw 6, the lead screw 6 is threadedly connected with the first slider 5, the upper surface of the connecting plate 7 is respectively fixed with a storage box 11 and an air pump 12, and one side of the storage box 11 is movable A sealing plug 13 is connected, and the powder inside the storage box 11 is processed by opening the sealing plug 13. The lower surface of the connecting plate 7 is provided with a powder suction tray 10, and the two output ends of the air pump 12 are respectively connected with the storage box 11 and the powder suction tray. 10 is connected, through the provided motor 3, the screw 6 can be controlled to rotate, thereby driving the first slider 5 to slide inside the first chute 4, and then the connecting plate 7 can be controlled to move, so that the powder suction tray 10 is located in the molding cavity 8, and then start the air pump 12 to adsorb the residual powder inside the molding cavity 8 to the interior of the storage box 11, which improves the functionality of the device and solves the problem that the metal powder adheres to the molding cavity without treatment for a long time in the prior art. 8 Problems with the inner wall.

To sum up, when using the mold for powder metallurgy molding, firstly connect the movable plate 2 with the external hydraulic device, place the metal powder in the molding cavity 8, then start the hydraulic device to control the upper mold 14 to move downward, through The metal powder in the molding cavity 8 is made into a semi-finished product by pressure, and then it is taken out. Then, the motor 3 is started, and the screw 6 is controlled to rotate, thereby driving the first slider 5 to slide inside the first chute 4, so as to control the connection The plate 7 moves so that the powder suction tray 10 is located above the molding cavity 8, and then the air pump 12 is activated to absorb the residual powder in the molding cavity 8 to the interior of the storage box 11. When the upper mold 14 needs to be replaced for a long time, The rotation of the gear 26 can be controlled by rotating the extension rod 31. Under the meshing connection between the gear 26 and the rack 22, the rack 22 can be controlled to move, thereby driving the block 19 away from the slot 17, and the upper mold 14 can be disassembled. , during installation, rotate the extension rod 31 to reset the block 19, and at the same time control the top block 21 to be located on one side of the limit groove 20, and then snap the first slider 5 on the upper surface of the upper mold 14 into the installation groove 18. When the clamping block 19 automatically moves in the direction of the spring groove 23 by using the inclined surface of its side, when the first slider 5 and the installation groove 18 are completely overlapped, the clamping block 19 is subjected to the elastic force of the expansion spring 24 and is tightly stuck in the clamping groove 17. and the extension rod 31 can be rotated to control the rotation of the gear 26, so that the top block 21 at one end of the rack 22 is pressed against the inner wall of the limit slot 20, and finally the extension rod 31 is pressed, so that the limit post 28 is stuck in the limit hole 29. to complete the installation.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. A mold for powder metallurgy forming, comprising a base (1), a movable plate (2) and an upper mold (14), characterized in that: the lower surface of the movable plate (2) is provided with a mounting groove (18), A mounting block (15) is fixedly installed on the upper surface of the upper die (14), a clamping groove (17) is provided on the outer side of the mounting block (15), and a spring groove (17) is provided on the inside of the movable plate (2). 23), a telescopic spring (24) is fixedly installed inside the spring groove (23), and a clamping block (19) is fixedly connected to one end of the telescopic spring (24), and the clamping block (19) is connected to the clamping groove ( 17) Fittingly, a limit slot (20) is provided inside the clamping block (19), a rack (22) is slidably connected to the inside of the movable plate (2), and the rack (22) penetrates the clamping The block (19) extends to the inner cavity of the limiting groove (20), one end of the rack (22) is provided with a top block (21), and a rotating shaft (25) is rotatably connected to the inside of the movable plate (2). A gear (26) is fixedly connected to the lower end of the rotating shaft (25), and the gear (26) is meshed with the rack (22). 2. A powder metallurgy forming mold according to claim 1, characterized in that: the upper surface of the base (1) is provided with a forming cavity (8), and the interior of the base (1) is provided with an exhaust gas hole (9). 3. A mold for powder metallurgy forming according to claim 1, characterized in that: the upper surface of the base (1) is provided with sliding rods (30) near the four corners, and the movable plate (2) is connected with The sliding rod (30) is slidably connected. 4. A powder metallurgy forming mold according to claim 1, characterized in that: a first chute (4) is opened inside the base (1), and the inside of the first chute (4) A first sliding block (5) is slidably connected, a connecting plate (7) is fixedly installed on the upper surface of the first sliding block (5), and a motor (3) is fixedly installed on the outer side of the base (1). The output end of the motor (3) is connected with a lead screw (6), and the lead screw (6) is threadedly connected with the first slider (5). 5 . The mold for powder metallurgy forming according to claim 4 , wherein a storage box ( 11 ) and an air pump ( 12 ) are respectively fixed on the upper surface of the connecting plate ( 7 ), and the storage box One side of (11) is movably connected with a sealing plug (13), the lower surface of the connecting plate (7) is provided with a powder suction tray (10), and the two output ends of the air pump (12) are respectively connected to the storage box ( 11) Connect with the powder suction tray (10). 6 . The powder metallurgy forming mold according to claim 1 , wherein an extension rod ( 31 ) is provided at one end of the rotating shaft ( 25 ), and a second sliding rod ( 31 ) is provided on the inner side of the rotating shaft ( 25 ). 7 . A groove (16), a second sliding block (27) is fixedly installed on the outer side of the extension rod (31), the second sliding block (27) is slidably connected with the second sliding groove (16), and the movable plate ( 2) A limiting hole (29) is provided on the outer side, a limiting column (28) is arranged on the outer side of the extension rod (31), and the limiting column (28) is matched with the limiting hole (29).

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