CN210390224U - A die set mechanism for high-precision powder molding servo press - Google Patents

Abstract

The utility model discloses a high-accuracy powder die carrier mechanism for die-pressing servo press, including female type, go up sliding assembly, lower sliding assembly, motionless mould mounting panel, the mould mounting panel, well stick seat and plug, motionless mould mounting panel top is installed down the type seat, and leave the clearance down between type seat and the motionless mould mounting panel, be equipped with down the type on the type seat down, clearance between lower type seat and the motionless mould mounting panel is equipped with well stick seat, lower type seat top is equipped with the mould mounting panel, install female type on the mould mounting panel, well stick seat and female type fixed connection, processing has a plurality ofly and lower type clearance fit's die cavity on the female type, be equipped with many plugs that run through down the type on the well stick seat, and the die cavity is arranged in to the plug top. The utility model discloses a set up female type on the mould mounting panel and set up and female type matched with type, lower type and plug, can conveniently compress the powder that fills into the endocentric tube-shape product of inner and outer ring, can guarantee the suppression precision of equipment simultaneously.

Description

A die set mechanism for high-precision powder molding servo press

technical field

The utility model relates to the field of powder processing mold bases, in particular to a mold base mechanism for a high-precision powder molding servo press.

Background technique

Powder metallurgy is the process and technology of manufacturing metal powder and using metal powder as the basic raw material to manufacture metal materials and special-shaped products. In powder metallurgy, press forming is the most important and widely used forming method. Compression molding is to put metal powder or powder mixture into a steel die, pressurize the powder through die punching, and after the pressure is released, the compact is released from the die to complete the molding process. The mold base is an essential process equipment for manufacturing powder metallurgy products.

The existing equipment used for pressing and filling powder is a powder molding machine, but the mold base used in the existing powder molding machine is to fix the middle mold with the mother mold on the machine tool, and connect the upper mold to the upper and lower sides of the mother mold. And the lower die, press the product through the upper die and the mother die, and then push out the product through the lower die. However, due to the floating connection between the existing mother mold and the upper mold and the lower mold, it is easy to cause the upper mold and the lower mold to be difficult to accurately align the position on the mother mold, which is easy to cause damage to the mold. It is floatingly connected with the female mold, so the deviation generated when the upper mold and the lower mold move will cause uneven stress on the pressed product, and it is difficult to grasp the position where the upper mold and the lower mold are in contact with the female mold. The mold needs to be repeatedly debugged by professional technicians, resulting in a cumbersome installation process. In addition, both the existing upper die and the lower die are powered by rocker arms to move up and down, which is likely to cause unstable powder filling in the mother mold and poor precision of the pressed product.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a mold base mechanism for a high-precision powder molding servo press with high pressing precision and convenient debugging.

The purpose of this utility model is to realize through the following technical solutions:

A mold base mechanism for a high-precision powder molding servo press, comprising a mother mold, an upper sliding component matched with the mother mold, and a lower sliding component connected with the mother mold, and also includes a fixed mold mounting plate, a mold mounting plate, The middle rod seat and the mandrel, a lower mold seat is installed above the fixed mold mounting plate, and a gap is left between the lower mold seat and the fixed mold mounting plate, and a plurality of vertical mold seats are installed on the surface of the lower mold seat. And for the hollow lower mold, the gap between the lower mold seat and the fixed mold mounting plate is provided with a middle rod seat, a mold mounting plate is arranged above the lower mold seat, and a mother mold is installed on the mold mounting plate. The female mold is fixedly connected, the female mold is machined with a plurality of mold cavities that are clearance-fitted with the lower mold, the middle rod seat is provided with a plurality of mandrel rods that penetrate the lower mold, and the top of the mandrel rod is placed in the mold cavity, A lower sliding assembly is arranged below the stationary mold mounting plate, and the lower sliding assembly includes a lower sliding block, a lower servo motor connecting block that drives the lower sliding block to move up and down, and a lower guide column connecting the lower sliding block and the mold mounting plate , an upper sliding assembly is arranged above the mold mounting plate, and the upper sliding assembly includes an upper sliding block, an upper servo motor connecting block that drives the upper sliding block to move up and down, an upper guide column connecting the mold mounting plate and the upper sliding block, and a mounting plate. The upper mold seat at the bottom of the upper sliding block, and the upper mold installed at the bottom of the upper mold seat, there are multiple upper molds, and the plurality of upper molds are in clearance fit with the mold cavity, the upper mold, the mold cavity, the lower mold and the core The rods form a hollow cylinder.

The middle rod seat is U-shaped, the mandrel is installed on the inner bottom surface of the middle rod seat, and the top surface of the U-shaped middle rod seat is connected with the female shape.

The middle rod seat is provided with a mandrel cover plate for fixing the mandrel.

A feeding mechanism is provided on the surface of the female mold on one side of the cavity, and the feeding mechanism includes a base plate, a drive motor mounted on the base plate, a lead screw connected with the output shaft of the drive motor, a lead screw sleeved on the lead screw and connected to the lead screw The nut seat with thread fit, the U-shaped frame hinged on the nut seat, and the hopper installed on the U-shaped frame, the bottom plate is fixed on the frame on one side of the mold, and the side wall of the nut seat close to the mold side passes through the The universal joint is connected with a U-shaped frame, and the end of the U-shaped frame away from the universal joint is connected with a pusher bracket, and the pusher bracket is located above the mother type, and the hopper is hinged on the pusher bracket above the mother type. The bottom is machined with a discharge port matched with the mold cavity, and the U-shaped frame is provided with a spring component that drives the hopper to closely contact the mother mold.

The utility model has the following effects:

(1) By arranging the mother mold on the mold mounting plate, and setting the upper mold, the lower mold and the mandrel to match the mother mold, the filling powder can be easily pressed into a cylindrical product with concentric inner and outer rings, and at the same time through the mold The upper guide column and the lower guide column on the installation board can avoid the process of debugging the mold, and can ensure the accuracy of the product pressed by the equipment;

(2) The height difference of the lower sliding component can be easily adjusted by arranging the middle rod seat which can float with the mother shape on the lower mold, so as to adapt to the pressing of various shapes of products;

(3) By setting a feeding mechanism that is driven by a driving motor to move the hopper, and at the same time driving the hopper to be close to the mother shape through the spring assembly, the phenomenon of material leakage or material jam can be avoided;

(4) By setting the hopper, the product ejected by the lower mold can be pushed out of the mold cavity, so as to avoid the cost of the special pushing mechanism;

(5) By setting the universal joint connecting nut seat and the U-shaped frame, it can ensure that the pusher bracket automatically adjusts the balance angle under the pulling force of the spring assembly, thereby ensuring the smooth operation of the pusher bracket during the movement;

(6) Easy installation and flexible control.

Description of drawings

Figure 1 is a side view of the utility model.

Fig. 2 is the front view of the mould of the utility model.

FIG. 3 is a schematic diagram of the installation of the lower mold, the mandrel, the mother mold and the upper mold of the present invention.

FIG. 4 is a top view of the feeding mechanism of the present invention.

Reference numerals: 1. Female type; 11. Mold cavity; 2. Upper sliding assembly; 21. Upper sliding block; 22. Upper servo motor connecting block; 23. Upper guide column; 24. Upper type seat; 25, Upper type ; 26. Upper cover plate; 3. Lower sliding assembly; 31. Lower sliding block; 32. Lower servo motor connection block; 33. Lower guide column; 4. Fixed mold mounting plate; 5. Mold mounting plate; 6. Middle rod seat; 7. Mandrel; 71. Mandrel cover; 8. Lower mold seat; 81, Lower mold; 82, Lower mold cover; 9. Feeding mechanism; 91, Bottom plate; 92, Drive motor; 93, Screw; 94, nut seat; 95, U-shaped frame; 96, hopper; 97, outlet; 98, spring assembly; 99, universal joint; 910, pusher bracket.

Detailed ways

Example

As shown in FIGS. 1 to 4 , the mold base mechanism for a high-precision powder molding servo press provided in this embodiment includes a mother mold 1 , an upper sliding component 2 matched with the mother mold 1 , and a lower sliding component connected to the mother mold 1 . Sliding assembly 3, stationary mold mounting plate 4, mold mounting plate 5, middle rod seat 6 and mandrel 7, the stationary mold mounting plate 4 is fixed on the machine tool by pressing blocks, above the stationary mold mounting plate 4 A lower mold seat 8 is installed, and there is a gap between the lower mold seat 8 and the stationary mold mounting plate 4. A plurality of vertical and hollow lower molds 81 are installed on the surface of the lower mold seat 8, and the lower mold 81 passes through. The lower mold cover 82 is installed on the lower mold seat 8, the gap between the lower mold seat 8 and the fixed mold mounting plate 4 is provided with a middle rod seat 6, and a mold mounting plate 5 is provided above the lower mold seat 8, and the mold mounting plate 5 A female type 1 is installed on it, the middle rod seat 6 is U-shaped, and the top surface of the U-shaped middle rod seat 6 is connected with the female type 1. The female type 1 is processed with a plurality of molds for clearance fit with the lower type 81. Cavity 11, the middle rod seat 6 is provided with a plurality of mandrels 7 penetrating the lower mold 81. In order to ensure that the workpiece is annular, the top of the mandrel 7 is placed in the mold cavity 11. There is a mandrel cover 71 for fixing the mandrel 7 on the surface, and the mandrel cover 71 can ensure that the mandrel 7 is vertically installed on the middle rod seat, and a lower sliding assembly is arranged below the stationary mold mounting plate 4 3. The lower sliding assembly 3 includes a lower sliding block 31, a lower servo motor connecting block 32 that drives the lower sliding block 31 to move up and down, and a lower guide column 33 that connects the lower sliding block and the mold mounting plate 5. The mold mounting plate 5 is provided with an upper sliding assembly 2 above, the upper sliding assembly 2 includes an upper sliding block 21, an upper servo motor connecting block 22 that drives the upper sliding block 21 to move up and down, and an upper guide column connecting the mold mounting plate 5 and the upper sliding block 21 23. The upper type seat 24 installed at the bottom of the upper sliding block 21, and the upper type 25 installed at the bottom of the upper type seat 24. There are multiple upper type 25, and a plurality of upper type 25 are installed on the upper type cover 26 through the upper type cover 26. On the upper mold seat 24, the outer wall of the upper mold 25 is in clearance fit with the inner wall of the mold cavity 11, and the upper mold 25, the mold cavity 11, the lower mold 81 and the mandrel 7 enclose a hollow cylinder.

The surface of the female mold 1 on one side of the cavity 11 is provided with a feeding mechanism 9, and the feeding mechanism 9 includes a base plate 91, a drive motor 92 mounted on the base plate 91, a lead screw 93 connected to the output shaft of the drive motor 92, The nut seat 94 which is sleeved on the screw rod 93 and is threadedly matched with the screw rod 93, the U-shaped frame 95 hinged on the nut seat 94, and the hopper 96 installed on the U-shaped frame 95, the bottom plate 91 is fixed on the mold side. On the frame, the side wall of the nut seat 94 close to the mold side is connected with a U-shaped frame 95 through the universal joint 99, and the end of the U-shaped frame 95 away from the universal joint 99 is connected with a pusher bracket 910, and the pusher bracket is connected. 910 is located above the mother mold 1, the hopper 96 is hinged on the pusher bracket 910 above the mother mold 1, the bottom of the hopper 96 is machined with a discharge port 97 that matches the mold cavity 11, and the U-shaped frame 95 is on the There is a spring assembly 98 that drives the hopper 96 to be in close contact with the mother type 1. The spring assembly 98 can ensure that when the driving motor 92 drives the hopper 96 to move, the bottom surface of the hopper 96 is in close contact with the surface of the mother type 1, so as to ensure the pusher bracket 910 promotes the smooth operation of the hopper 96, preventing the filling powder in the hopper 96 from flowing out of the gap created by the movement.

The use method of this utility model is:

Put the filling powder into the hopper 96, and then start the driving motor 92. The driving motor 92 drives the nut seat 94 to move towards the mold through the screw rod 93. After moving to the specified length, the filling powder in the hopper 96 falls into the cavity 11. , and then control the driving motor 92 to rotate in the reverse direction, so that the material box leaves the mold cavity 11 for feeding.

When the material box moves above the mold cavity 11, the lower servo motor connecting block 32 drives the lower sliding block 31 to move up. When the lower sliding block 31 moves up, the lower guide column 33 drives the mold mounting plate 5, the mother type 1 and the core rod. 7 Move up, because the lower mold 81 is fixed on the stationary mold mounting plate 4, so when the mold mounting plate 5 is moved up, the mother mold 1 and the mandrel 7 are moved up, more filling powder can be added to the mold cavity 11. .

When the filling powder enters the mold cavity 11, the upper servo motor connecting block 22 drives the upper sliding block 21 to move down along the upper guide column 23, so that the upper mold 25 extends into the mold cavity 11, and then the upper servo motor connecting block 22 continues to descend, At this time, the lower servo motor connecting block 32 drives the lower sliding block 31 to go down through the lower mold 81 fixed on the stationary mold mounting plate 4 and the upper mold 25 to press the filling powder into a hollow cylindrical magnetic piece. When the upper mold 25 is lowered After moving to the designated position, the upper servo motor connecting block 22 drives the upper sliding block 21 to move up. At this time, the lower servo motor connecting block 32 continues to move down, and the workpiece in the cavity 11 is extruded through the lower mold 81, and then the motor 92 is driven. The material box is driven again to feed, and the material box feeds the workpiece that is ejected from the cavity 11 to be removed, and re-feeding is performed. During feeding, the lower servo motor connecting block 32 controls the lower sliding block 31 to move up again to process the next batch of workpieces. .

The above are only the preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited to this, and any modification and replacement based on the technical solutions and utility model ideas provided by the present utility model shall be covered by the present utility model. within the scope of protection of the utility model.

Claims (4)

1. a high-precision powder molding servo press mold base mechanism, comprising a mother type, an upper sliding assembly that cooperates with the mother type and a lower sliding assembly that is connected with the mother type, it is characterized in that: also include a fixed mold installation plate, mold mounting plate, middle rod seat and mandrel, a lower mold seat is installed above the fixed mold mounting plate, and a gap is left between the lower mold seat and the fixed mold mounting plate, and the surface of the lower mold seat is A plurality of vertical and hollow lower molds are installed, the gap between the lower mold seat and the fixed mold mounting plate is provided with a middle rod seat, a mold mounting plate is arranged above the lower mold seat, and a female mold is installed on the mold mounting plate. The middle rod seat is fixedly connected with the female mold, the female mold is machined with a plurality of mold cavities that are clearance fit with the lower mold, the middle rod seat is provided with a plurality of mandrels penetrating the lower mold, and the top of the core rod is It is placed in the mold cavity, and a lower sliding assembly is arranged below the stationary mold mounting plate. The lower sliding assembly includes a lower sliding block, a lower servo motor connecting block that drives the lower sliding block to move up and down, and connects the lower sliding block and the mold. The lower guide column of the mounting plate, an upper sliding assembly is arranged above the mold mounting plate, and the upper sliding assembly includes an upper sliding block, an upper servo motor connecting block that drives the upper sliding block to move up and down, and connects the mold mounting plate and the upper sliding block. The upper guide column, the upper mold seat installed at the bottom of the upper sliding block, and the upper mold installed at the bottom of the upper mold seat, there are multiple upper molds, and the multiple upper molds are clearance fit with the mold cavity, the upper mold, the mold The cavity, die and mandrel form a hollow cylinder. 2. The mold base mechanism for a servo press for high-precision powder molding according to claim 1, wherein the middle rod seat is U-shaped, and the mandrel is installed on the inner bottom surface of the middle rod seat, The top surface of the U-shaped middle rod seat is connected with the female shape. 3 . The mold base mechanism for a servo press for high-precision powder molding according to claim 2 , wherein a mandrel cover for fixing the mandrel is arranged on the middle rod seat. 4 . 4. The mold base mechanism for a servo press for high-precision powder molding according to claim 1, characterized in that: the surface of the mother mold on one side of the mold cavity is provided with a feeding mechanism, and the feeding mechanism comprises a bottom plate, a mounting The drive motor on the base plate, the lead screw connected with the output shaft of the drive motor, the nut seat that is sleeved on the lead screw and is threadedly matched with the lead screw, the U-shaped frame hinged on the nut seat, and the hopper installed on the U-shaped frame , the bottom plate is fixed on the frame on one side of the mold, the side wall of the nut seat close to the mold side is connected with a U-shaped frame through a universal joint, and the end of the U-shaped frame away from the universal joint is connected with a pushing bracket , and the pusher bracket is located above the mother mold, the hopper is hinged on the pusher bracket above the mother mold, the bottom of the hopper is machined with a discharge port that matches the mold cavity, and the U-shaped frame is provided with a driving hopper A spring assembly that is in close contact with the female form.

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