CN220880233U - Hard alloy die - Google Patents

Abstract

The application discloses a hard alloy die, and belongs to the technical field of dies. The die mainly comprises fixing grooves formed in two sides of a die core, positioning holes are formed in two sides of the fixing grooves, and fixing plates are arranged on a punch; the telescopic air cylinders are arranged on two sides of the fixed plate, and clamping plates are arranged at the output ends of the telescopic air cylinders; the side face of the clamping plate is provided with a positioning bolt, the side face of the clamping plate is also provided with a straight rod, and the straight rod is provided with a positioning column; through starting flexible cylinder, flexible cylinder's output passes through drive splint, and splint then drive location bolt and straight-bar to one side removal to adjustable location bolt no longer block in the inside of fixed slot, and fixed mounting's reference column no longer blocks with the locating hole mutually on the straight-bar, with dismantling the die core, thereby realized the quick dismantlement of die core.

Description

Hard alloy die

Technical Field

The application relates to the technical field of hard alloy molds, in particular to a hard alloy mold.

Background

The hard alloy die refers to a die used for pressing hard alloy raw materials in pressing production, and external force is applied to the hard alloy raw materials by virtue of a punch press and the die, so that the hard alloy raw materials are pressed and molded, and a hard alloy workpiece with a required shape and size is obtained;

For example, patent publication CN104550414a discloses a blanking die for cemented carbide, which is provided with an upper die and a lower die screwed on a punch press, and the cores in the upper die and the lower die are made to interact by the mutual approach of the upper die and the lower die, so as to punch cemented carbide raw materials.

In the compression molding process of the die, the hard alloy raw material bears quite large pressure, so that the friction force and the extrusion force borne by the die core are quite large, and the die core is quite easy to wear and lose efficacy, so that frequent replacement of the die core is required;

However, in order to maintain the accurate positioning and stability of the mold core, the mold core is usually fixed on the mold through a positioning pin and a bolt, so that in the process of replacing the mold core, a plurality of groups of bolts need to be screwed down for fixation, and therefore, the replacing process is inconvenient, and therefore, a hard alloy mold needs to be designed to solve the problems.

It should be noted that the above information disclosed in this background section is only for understanding the background of the inventive concept and, therefore, it may contain information that does not constitute prior art.

Disclosure of Invention

Based on the above problems existing in the prior art, the present application aims to solve the problems: the hard alloy die solves the problems that in the die compression molding process, hard alloy raw materials bear quite large pressure, so that friction force and extrusion force borne by a die core are quite large, the die core is quite easy to wear and lose efficacy, frequent replacement is needed, the die core is usually fixed on the die through a locating pin and a bolt, and therefore multiple groups of bolts are required to be screwed down for fixation in the die core replacement process, and the replacement process is quite inconvenient.

The technical scheme adopted for solving the technical problems is as follows: the hard alloy die is applied to pressing of hard alloy raw materials, and is provided with an upper die at the upper end and a lower die at the lower end, wherein die cores are arranged on the upper die and the lower die, fixing grooves are formed in two sides of each die core, and positioning holes are formed in two sides of each fixing groove; the mold further comprises: a fixing plate mounted on the punch; the telescopic air cylinders are arranged on two sides of the fixed plate, and clamping plates are arranged at the output ends of the telescopic air cylinders; the side face of the clamping plate is provided with a positioning bolt, the side face of the clamping plate is also provided with a straight rod, and the straight rod is provided with a positioning column; wherein: the telescopic cylinder is suitable for pushing the clamping plate, so that the positioning bolt fixes the mold core, and the positioning column positions the mold core.

Further, a clamping groove is formed in the upper surface of the fixing plate.

Further, the both sides of fixed plate are fixed mounting has the mount pad.

Furthermore, the lower die is fixedly provided with a positioning column, and a guide sleeve is arranged at the corresponding position of the upper die.

Furthermore, through grooves are formed in two sides of the upper die.

The beneficial effects of the application are as follows: according to the hard alloy die, the die is fixed in the clamping groove, when the die core is required to be disassembled, the telescopic cylinder is started, the output end of the telescopic cylinder drives the clamping plate, the clamping plate drives the positioning bolt and the straight rod to move to one side, so that the adjustable positioning bolt is not clamped in the fixing groove, and the positioning column fixedly arranged on the straight rod is not clamped with the positioning hole, so that the die core is disassembled, and the die core is disassembled quickly.

In addition to the objects, features and advantages described above, the present application has other objects, features and advantages. The present application will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.

In the drawings:

figure 1 is an overall schematic of a cemented carbide mold according to the present application,

Figure 2 is an exploded view of the cemented carbide mold of figure 1,

Figure 3 is an enlarged view of the mounting plate of figure 2,

Wherein, each reference sign in the figure:

1. An upper die; 11. a connection end; 12. a first mold core; 13. a positioning rod; 2. a lower die; 21. a second mold core; 22. a fixing groove; 23. positioning holes; 24. a placement groove; 25. penetrating a groove; 3. a fixing plate; 31. a clamping groove; 32. a mounting base; 33. a telescopic cylinder; 34. a clamping plate; 35. positioning a bolt; 36. a straight rod; 37. and positioning columns.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

As shown in fig. 1, the present application provides a cemented carbide die for pressing cemented carbide raw materials, the die comprising an upper die 1 at an upper end and a lower die 2 at a lower end, wherein the upper end of the upper die 1 is provided with a connecting end 11, the connecting end 11 is fixedly mounted with a punch of a punch press, and the lower die 2 is fixedly mounted on a working table of the punch press, so that the upper die 1 can be close to or far from the lower die 2 under the driving of the punch press;

Simultaneously, the first mold core 12 is clamped and installed in the upper mold 1, and the second mold core 21 is clamped and installed on the lower mold 2, so that the first mold core 12 is driven to be close to the second mold core 21 through the movement of the upper mold 1, and the hard alloy raw material is molded;

In order to realize the guiding when the upper die 1 moves, a positioning rod 13 is fixedly arranged on the lower die 2, and a guide sleeve (not shown in the figure) is arranged at a corresponding position of the upper die 1, so that the upper die 1 is guided by the cooperation of the positioning rod 13 and the guide sleeve in the moving process of the upper die 1;

In summary, during normal use of the die, firstly, the hard alloy raw material is placed on the second die core 21 in the lower die 2, and then the punch drives the upper die 1 to approach the lower die 2, so that the first die core 12 and the second die core 21 interact to realize the punching of the hard alloy raw material;

In the use process of the die, the hard alloy raw material bears quite large pressure, so that the friction force and the extrusion force borne by the die core are quite large, and the die core is quite easy to wear and lose efficacy, so that frequent replacement of the die core is required;

However, in order to maintain the accurate positioning and stability of the mold core, the mold core is usually fixed on the mold through a positioning pin and a bolt, so that in the process of replacing the mold core, a plurality of groups of bolts are required to be screwed down for fixation, and the replacing process is inconvenient;

In order to solve the above-mentioned problems, the present application provides a mold core replacing apparatus which can further improve the practicality of the mold, in the present application, the mounting structure of the first mold core 12 and the second mold core 21 is the same, and for convenience, the following structure of the mold 2 is taken as an example, and the mounting structure thereof is specifically described in detail:

As shown in fig. 2-3, a fixing plate 3 is mounted on the outer surface of the lower die 2 in a clamping manner, a clamping groove 31 is formed in the fixing plate 3, and the clamping groove 31 is used for placing the lower die 2;

Meanwhile, mounting seats 32 are fixedly arranged on two sides of the fixed plate 3, a telescopic cylinder 33 is fixedly arranged on the mounting seats 32, a clamping plate 34 is fixedly arranged at one end of the output end of the telescopic cylinder 33, a positioning bolt 35 is fixedly arranged on the side surface of the clamping plate 34, and the output end of the telescopic cylinder 33 is movably connected with the side surface of the mounting seat 32 in a penetrating manner;

the two sides of the lower die 2 are provided with through grooves 25, the two sides of the second die core 21 are provided with fixed grooves 22, the surface of the lower die 2 is provided with a placing groove 24, and the through grooves 25 are communicated with the placing groove 24;

When the second mold core 21 is placed in the placement groove 24, the clamping plate 34 can be moved under the action of the telescopic cylinder 33, so that the positioning bolt 35 is pushed to penetrate through the through groove 25 and be clamped with the fixed groove 22, and the second mold core 21 can be initially positioned;

A straight rod 36 is fixedly arranged on the side surface of the clamping plate 34, a positioning column 37 is fixedly arranged in the straight rod 36, and the straight rod 36 is suitable for moving along with the output end of the telescopic cylinder 33;

meanwhile, positioning holes 23 are formed in two sides of the second mold core 21, and the positioning columns 37 are suitable for driving the positioning columns 37 to be clamped with the positioning holes 23 under the action of the telescopic air cylinders 33 and used for positioning the second mold core 21;

in summary, when the hard alloy mold is used and the mold core is worn and out for a long time, and needs to be replaced, the mold and the mold core are in a detachable structure, and meanwhile, the fixing plate 3 is arranged to fix and position the second mold core 21, so that the hard alloy mold is prevented from being replaced and needs to be integrally disassembled;

When the mold is used, the mold is fixed in the clamping groove 31, when the mold core is required to be disassembled, the telescopic cylinder 33 is started, the output end of the telescopic cylinder 33 drives the clamping plate 34, the clamping plate 34 drives the positioning bolt 35 and the straight rod 36 to move to one side, so that the adjustable positioning bolt 35 is not clamped in the fixing groove 22, and the positioning column 37 fixedly installed on the straight rod 36 is not clamped with the positioning hole 23, so that the mold core is disassembled, and the mold core is quickly disassembled.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (5)

1. Cemented carbide mould is applied to the suppression of cemented carbide raw materials, the mould has last mould (1) that is located the upper end to and bed die (2) that are located the lower extreme, all install the mold core on last mould (1) and bed die (2), its characterized in that:

Both sides of the mold core are provided with fixing grooves (22), and both sides of the fixing grooves (22) are provided with positioning holes (23);

The mold further comprises:

a fixing plate (3), the fixing plate (3) being mounted on the punch;

The telescopic air cylinders (33) are arranged on two sides of the fixed plate (3), and clamping plates (34) are arranged at the output ends of the telescopic air cylinders (33);

The side face of the clamping plate (34) is provided with a positioning bolt (35), the side face of the clamping plate (34) is also provided with a straight rod (36), and the straight rod (36) is provided with a positioning column (37);

wherein: the telescopic cylinder (33) is suitable for pushing the clamping plate (34) so as to enable the positioning bolt (35) to fix the die core and enable the positioning column (37) to position the die core.

2. A cemented carbide mould according to claim 1, characterized in that: the upper surface of the fixed plate (3) is provided with a clamping groove (31).

3. A cemented carbide mould according to claim 2, characterized in that: mounting seats (32) are fixedly arranged on two sides of the fixing plate (3).

4. A cemented carbide mould according to claim 3, characterized in that: the lower die (2) is fixedly provided with a positioning rod (13), and a guide sleeve is arranged at the corresponding position of the upper die (1).

5. The cemented carbide mold of claim 4, wherein: both sides of the upper die (1) are provided with through grooves (25).