CN216502350U - Be used for fashioned two-way embossing mold utensil of carbide facing cutter wheel - Google Patents

Abstract

The utility model aims to provide a bidirectional pressing die for forming a hard alloy toothed cutter wheel, which is characterized in that: the punching die comprises an upper die, a lower die, a female die, a pressure maintaining gasket, an upper punching die, a plurality of upper punching thimbles, a lower punching die and a plurality of lower punching thimbles, wherein a female die outer sleeve layer and a female die reinforcing layer are also arranged on the female die; the whole set of die is simple in structure, high durability and convenient use, the whole dismouting and change of being convenient for, adopt upper and lower slip design structure, make the density of powder material even, can not produce and press the embryo layering, the defect of crackle, the bed die, go up the die, lower die and a plurality of upper punch thimbles, a plurality of lower punch thimbles all have the structure of draft, make the product easily drawing of patterns, be difficult for the fish tail, the product qualification rate has been improved, inlay step thimble shape is made in the inside of die down, the difficult and sizing problem of drawing of patterns has been solved, avoid the product fish tail, can not produce and press the embryo layering, the crackle, and then improve the blank product qualification rate of suppression, and the production cost and production cycle are reduced.

Description

Be used for fashioned two-way embossing mold utensil of carbide facing cutter wheel

Technical Field

The utility model relates to the field of cutter wheel machining, in particular to a bidirectional pressing die for forming a hard alloy toothed cutter wheel.

Background

The conventional production process of the hard alloy product is to utilize a pressing die to press powder into a pressing blank, and then the pressing blank is sintered at high temperature, so that an alloy product which is high in hardness, high in wear resistance and difficult to process is formed. The serrated knife wheel is used for pressing alloy products, the determination of the position of a die cavity forming area is a key part and is a very important part for product forming, and the thin large-area product is easy to have uneven density, so that the product has the defects of cracks, layering, corner falling and the like, the product is scrapped, the production cost is increased, the labor intensity of workers is increased, and the delivery period is prolonged.

At present, the pressing of the toothed cutter wheel is basically performed by adopting single-side pressing, and due to the characteristics of the product, the product is thin and large in area, so that the defects of uneven density, too low density of a pressed blank, incomplete densification of sintering, incapability of completing pressing or generation of pressed blank layering, cracks and the like during pressing are caused, and the product performance requirements are not met. With the continuous development and progress of the machining technology, some forming dies adopt bidirectional pressing, although the density is relatively uniform, the material on the contact surface cannot be demoulded after being adhered, the demoulding is forced to break easily, waste products are caused, and the pressed products have low percent of pass, high cost and uncontrollable production period; in view of the foregoing, there is a need for improvements and upgrades to existing mold configurations to address and circumvent the above-described problems and drawbacks in use.

Disclosure of Invention

The utility model aims to provide a bidirectional pressing die which adopts an upper and lower sliding design structure and is used for molding a hard alloy tooth punching cutter wheel, and the lower punching die is internally made into a shape of an embedded step type thimble, so that the problems of difficult demoulding and material sticking are solved, the product is prevented from being scratched, blank pressing layering and cracks are not generated, the qualified rate of pressed blank products is further improved, and the production cost and the production period are reduced.

The technical scheme of the utility model is as follows: the utility model provides a be used for fashioned two-way embossing mold utensil of carbide gulleting cutter wheel which characterized in that: comprises an upper die, a lower die, a female die, a pressure maintaining gasket, an upper punching die, a plurality of upper punching thimbles, a lower punching die and a plurality of lower punching thimbles, the lower die is positioned at the lower part of the upper die, the lower die is detachably connected with the upper die, the female die is positioned in the lower die, the female die is detachably connected with the lower die, the pressure maintaining gasket is positioned at the lower part of the female die, the pressure maintaining gasket is detachably connected with the female die and the lower die, the upper punch die is positioned in the upper die, the upper punch die is detachably connected with the upper die, the plurality of upper punch thimbles are uniformly distributed on the inner side of the upper punch die, the upper punch thimbles are fixedly connected with the upper punch die, the lower punch die is positioned in the female die, the lower punching die is detachably connected with the female die and the lower die, the lower punching thimbles are uniformly distributed on the inner side of the lower punching die, and the lower punching thimbles are fixedly connected with the lower punching die.

Further, the female die is of a tubular structure.

Further, still be equipped with bed die overcoat and bed die reinforcement on the bed die, bed die overcoat is located the outside of bed die, bed die overcoat is fixed connection with the bed die, the bed die reinforcement is located the inboard of bed die, the bed die reinforcement is fixed connection with the bed die.

Still further, the outer sleeve layer of the female die is made of tool steel subjected to vacuum heat treatment.

Still further, the female die reinforcing layer is made of hard alloy steel.

Further, the pressure maintaining gasket is a hard alloy steel ring.

Furthermore, the upper punch thimbles and the lower punch thimbles are all made of cold-work die steel.

Furthermore, the number and the position distribution relation of the plurality of upper punch thimbles are the same as those of the plurality of lower punch thimbles.

The utility model has the beneficial effects that: the bidirectional pressing die is suitable for forming the hard alloy tooth punching cutter wheel, so that the density of powder materials is uniform, the defects of blank pressing layering and cracks are avoided, and the female die, the upper punching die, the lower punching die and the upper punching ejector pin and the lower punching ejector pin are all provided with a structure with a die drawing inclination, so that the product is easy to demould and not easy to scratch, and the product percent of pass is improved; the whole set of die is simple in structure and convenient to use, is integrally convenient to disassemble, assemble and replace, adopts an upper sliding design structure and a lower sliding design structure, and is made into the shape of an embedded step type thimble in the lower punching die, so that the problem of difficult demoulding and material sticking is solved, product scratching is avoided, blank pressing layering and cracks cannot be generated, the blank product qualification rate of pressing is further improved, and the production cost and the production period are reduced.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a schematic structural view of the mold clamping and press molding state of the utility model.

Fig. 3 is a schematic view of the structure of the female mold of the present invention.

Fig. 4 is a schematic side view of the finished product of the present invention.

Fig. 5 is a schematic top view of the product of the present invention.

Fig. 6 is a schematic perspective view of the finished product of the present invention.

Wherein: 1. upper die 2, lower die 3 and female die

4. Female die outer sleeve layer 5, female die reinforcing layer 6 and pressure maintaining gasket

7. Upper punch 8, upper punch thimble 9 and lower punch

10. And a thimble is arranged at the lower part.

Detailed Description

The following provides a brief description of embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1, 2, 3, 4, 5 and 6, the bidirectional pressing die for forming the cemented carbide toothed cutter wheel is characterized in that: comprises an upper die 1, a lower die 2, a female die 3, a pressure maintaining gasket 6, an upper punch die 7, a plurality of upper punch thimbles 8, a lower punch die 9 and a plurality of lower punch thimbles 10, wherein the lower die 2 is positioned at the lower part of the upper die 1, the lower die 2 is detachably connected with the upper die 1, the female die 3 is positioned in the lower die 2, the female die 3 is detachably connected with the lower die 2, the female die 3 is further provided with a female die outer sleeve layer 4 and a female die reinforcing layer 5, the female die outer sleeve layer 4 is positioned at the outer side of the female die 3, the female die outer sleeve layer 4 is fixedly connected with the female die 3, the female die reinforcing layer 5 is positioned at the inner side of the female die 3, the female die reinforcing layer 5 is fixedly connected with the female die 3, the pressure maintaining gasket 6 is positioned at the lower part of the female die 3, the pressure maintaining gasket 6 is detachably connected with the female die 3 and the lower die 2, the upper punch 7 is positioned in the upper die 1, the upper punch die 7 is detachably connected with the upper die 1, the upper punch thimbles 8 are uniformly distributed on the inner side of the upper punch die 7, the upper punch thimbles 8 are fixedly connected with the upper punch die 7, the lower punch die 9 is located inside the female die 3, the lower punch die 9 is detachably connected with the female die 3 and the lower die 2, the lower punch thimbles 10 are uniformly distributed on the inner side of the lower punch die 9, and the lower punch thimbles 10 are fixedly connected with the lower punch die 9. The female die 3 is of tubular structure. The female die outer sleeve layer 4 is made of tool steel subjected to vacuum heat treatment. The female die reinforcing layer 5 is made of hard alloy steel. The pressure maintaining gasket 6 is a hard alloy steel ring. The upper punch thimbles 8 and the lower punch thimbles 10 are all made of cold-work die steel. The number and the position distribution relation of the plurality of upper punch thimbles 8 are the same as those of the plurality of lower punch thimbles 10.

The working mode is as follows: the two-way pressing die is suitable for forming a hard alloy tooth punching cutter wheel, the whole set of die mainly comprises an upper die 1, a lower die 2, a female die 3, a pressure maintaining gasket 6, an upper punching die 7, a plurality of upper punching ejector pins 8, a lower punching die 9 and a plurality of lower punching ejector pins 10, wherein the upper die 1 and the lower die 2 are used for pressing the set die, the positioning and calibrating effects are achieved, meanwhile, the female die 3, the upper punching die 7 and the lower punching die 9 in the upper die 1 and the lower die 2 are protected, the female die 3 adopts a tubular structure, so that when the upper die 1 and the lower die 2 are combined, the upper punching die 7 and the lower punching die 9 can be arranged in an up-and-down alignment sliding mode on the inner side of the female die 3, the secondary calibration and positioning effects are achieved, in addition, the quantity of the plurality of upper punching ejector pins 8 and the position distribution relation on the inner side of the upper punching die 7 are the same as the quantity of the plurality of the lower punching ejector pins 10 and the position distribution relation on the inner side of the lower punching die 9, the pressing and die assembling is more accurate, so that a die cavity is formed among an upper punch die 7, a lower punch die 9, a female die 3, a plurality of upper punch thimbles 8 and a plurality of lower punch thimbles 10, a female die outer sleeve layer 4 is arranged on the outer side of the female die 3, the female die outer sleeve layer 4 is made of tool steel for vacuum heat treatment, a female die reinforcing layer 5 is arranged on the inner side of the female die 3, the female die reinforcing layer 5 is made of hard alloy steel, the female die 3 is protected by the inner side and the outer side, the female die 3 is firmer and firmer in structure, deformation is not easy to occur during pressing, a pressure maintaining gasket 6 is arranged at the bottom of the female die 3, the pressure maintaining gasket 6 is made of hard alloy steel ring and plays a role in protecting vertical stress on the pressing of the female die 3, an inner hole of the female die 3 is finely ground by inner circle grinding and polished to achieve a mirror surface effect, and the plurality of upper punch thimbles 8 and the plurality of lower punch thimbles 10 are made of cold-work die thimble steel, the powder material is subjected to vacuum heat treatment to 60-62 ℃, rough grinding, fine grinding and polishing processing to achieve a mirror surface effect, and has the characteristics of high strength and impact resistance, in the pressing process, the upper punch 7 and the lower punch 9 are subjected to bidirectional pressing, so that the density of the powder material is uniform, the defects of blank pressing layering and cracks are avoided, and the female die 3, the upper punch 7, the lower punch 9, the upper punch thimble 8 and the lower punch thimble 10 are all provided with a structure with a draft angle, so that the product is easy to demould and not easy to scratch, and the product percent of pass is improved; the whole set of die is simple in structure and convenient to use, is integrally convenient to disassemble, assemble and replace, adopts an upper sliding design structure and a lower sliding design structure, and is made into the shape of an embedded step type thimble in the lower punching die, so that the problem of difficult demoulding and material sticking is solved, product scratching is avoided, blank pressing layering and cracks cannot be generated, the blank product qualification rate of pressing is further improved, and the production cost and the production period are reduced.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", "end", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (8)

1. The utility model provides a be used for fashioned two-way embossing mold utensil of carbide gulleting cutter wheel which characterized in that: comprises an upper die, a lower die, a female die, a pressure maintaining gasket, an upper punching die, a plurality of upper punching thimbles, a lower punching die and a plurality of lower punching thimbles, the lower die is positioned at the lower part of the upper die, the lower die is detachably connected with the upper die, the female die is positioned in the lower die, the female die is detachably connected with the lower die, the pressure maintaining gasket is positioned at the lower part of the female die, the pressure maintaining gasket is detachably connected with the female die and the lower die, the upper punch die is positioned in the upper die, the upper punch die is detachably connected with the upper die, the plurality of upper punch thimbles are uniformly distributed on the inner side of the upper punch die, the upper punch thimbles are fixedly connected with the upper punch die, the lower punch die is positioned in the female die, the lower punching die is detachably connected with the female die and the lower die, the lower punching thimbles are uniformly distributed on the inner side of the lower punching die, and the lower punching thimbles are fixedly connected with the lower punching die.

2. The bi-directional pressing die for forming the hard alloy toothed cutter wheel according to claim 1, is characterized in that: the female die is of a tubular structure.

3. The bi-directional pressing die for forming the hard alloy toothed cutter wheel according to claim 1, is characterized in that: still be equipped with bed die overcoat and bed die reinforcement on the bed die, bed die overcoat is located the outside of bed die, bed die overcoat is fixed connection with the bed die, the bed die reinforcement is located the inboard of bed die, the bed die reinforcement is fixed connection with the bed die.

4. The bi-directional pressing die for forming the hard alloy toothed cutter wheel according to claim 3, is characterized in that: the outer sleeve layer of the female die is made of tool steel subjected to vacuum heat treatment.

5. The bi-directional pressing die for forming the hard alloy toothed cutter wheel according to claim 3, is characterized in that: the female die reinforcing layer is made of hard alloy steel.

6. The bi-directional pressing die for forming the hard alloy toothed cutter wheel according to claim 1, is characterized in that: the pressure maintaining gasket is a hard alloy steel ring.

7. The bi-directional pressing die for forming the hard alloy toothed cutter wheel according to claim 1, is characterized in that: and the upper punch thimbles and the lower punch thimbles are all cold-work die steel.

8. The bi-directional pressing die for forming the hard alloy toothed cutter wheel according to claim 1, is characterized in that: the number and the position distribution relation of the plurality of upper punch thimbles are the same as those of the plurality of lower punch thimbles.

Images