CN213052361U

CN213052361U - Multipurpose die

Info

Publication number: CN213052361U
Application number: CN202021241867.3U
Authority: CN
Inventors: 马会民; 陈汉杰
Original assignee: Henan Hongyuan Wheel Co Ltd
Current assignee: Henan Hongyuan Wheel Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-04-27
Anticipated expiration: 2030-06-30

Abstract

The utility model provides a multipurpose die, which comprises a lower die, an expanding die assembly matched with the lower die and a forming die assembly matched with the lower die, wherein the lower die comprises a concave die, an ejector plate and an expanding die are arranged in the concave die, and the ejector plate and the expanding die are provided with different height series; the flaring die assembly comprises a cone and a flaring die, the cone is inserted into the flaring die, the workpiece is sleeved on the flaring die, the flaring die assembly is pressed downwards, the diameter of the workpiece is enlarged by the flaring die while the cone moves downwards in the flaring die, and the diameter of the workpiece is enlarged by the flaring die; the forming die assembly comprises a cone and a forming die, the cone is inserted into the expanding die, the forming die assembly is pressed downwards, the forming die presses a workpiece while the cone moves downwards in the expanding die, so that the workpiece can be formed, and the ejector plate and the expanding die with different heights are replaced, so that the workpieces with different widths can be formed. The die is suitable for forming workpieces of different width series, has low input cost and good forming effect, and can not generate cracks or fall blocks.

Description

Multipurpose die

Technical Field

The utility model relates to the technical field of machining, especially indicate a multi-purpose mould of a mould.

Background

At present, in the processing process of the inner wheel rim, the diameter and the height of the inner wheel rim are the same, the inner wheel rim with different widths is processed in batches, different sets of forming dies are needed for the inner wheel rim with different widths, and the investment cost of the dies is too high. In the machining process of the inner wheel rim, the tension spring groove arranged on the upper end face of the expansion module on the die is easy to crack or fall off when heat treatment is carried out. Because the cylinder part of the inner rim is wider, the inner rim is not well formed when the existing die is used for processing the inner rim.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multi-purpose mould. The existing die has the following problems that the inner rims with different widths need forming dies with different sleeves, the investment cost of the die is too high, the phenomenon of cracking or block falling is easy to occur, and the forming of the inner rims is poor.

In order to solve the above technical problem, an embodiment of the present invention provides the following solutions:

a multi-purpose die comprises a lower die, a flaring die assembly matched with the lower die for use and a forming die assembly matched with the lower die for use, wherein the lower die comprises a female die, an ejector plate and a diameter expanding die are arranged in the female die, and the ejector plate and the diameter expanding die are respectively provided with different height series;

the flaring die assembly comprises a cone and a flaring die, the cone is inserted into the flaring die, a workpiece is sleeved on the flaring die and presses down the flaring die assembly, the diameter of the workpiece is enlarged by the flaring die while the cone moves down in the flaring die, and the caliber of the workpiece is enlarged by the flaring die;

the forming die assembly comprises a cone and a forming die, the cone is inserted into the expanding die and presses the forming die assembly downwards, the forming die presses the workpiece while the cone moves downwards in the expanding die so as to form the workpiece, and the ejector plate and the expanding die with different heights are replaced so as to form the workpieces with different widths.

The lower die further comprises a lower die plate, a female die is mounted on the lower die plate, and an ejection plate is arranged on the lower die plate and located on the inner side of the female die.

The diameter expanding die comprises 6-12 diameter expanding blocks, tension spring grooves are formed in the outer sides of the diameter expanding blocks, and tension springs are arranged in the tension spring grooves to enable the diameter expanding blocks to form the diameter expanding die.

The top of the ejection plate is provided with a positioning spigot, and the expanding die can be clamped at the positioning spigot when contracting inwards;

the ejector plate is provided with a central hole, and the cone can extend into the central hole.

Wherein, the outside of die upper end is equipped with annular protruding portion.

Wherein, the inside of die with the outside looks adaptation of work piece.

Wherein a gap is formed between the outer side of the ejector plate and the inner side of the female die.

The lower die further comprises an ejector rod, and the ejector rod penetrates through the lower die plate and is connected with the ejector plate.

The lower template is provided with a spigot, the spigot of the lower template is matched with the inner diameter of the female die, and the female die can be clamped at the spigot of the lower template.

And the annular protruding part is in arc transition connection with the female die.

The above technical scheme of the utility model at least include following beneficial effect:

according to the technical scheme of the utility model, workpieces with different width sizes can be processed by one multipurpose die, and the expanding die and the ejection plate can be replaced, so that the multipurpose die is suitable for forming workpieces with different width series, and the investment cost is low; when the flaring assembly flares a workpiece, the expanding die expands the workpiece under the action of the cone, and the forming effect is good; the tension spring groove is arranged on the outer side of the expanding block, and the phenomenon of cracking or dropping of the block can not occur.

Drawings

Fig. 1 is a schematic structural view of a multipurpose mold of the present invention;

fig. 2 is a front view of an expanding die of a protective cover of the multipurpose die of the invention;

fig. 3 is a top view of the expanding die of the protective cover of the multipurpose die of the present invention;

fig. 4 is a front view of the ejector plate of the protective cover of the multipurpose mold according to the present invention;

fig. 5 is a top view of the ejector plate of the protective cover of the multipurpose mold according to the present invention.

Reference numerals:

1. a lower template; 3. ejecting the rod; 4. ejecting the plate; 5. a female die; 6. expanding a mould; 7. a tension spring; 8. a cone; 9. a flaring die; 11. mounting a template; 13. and (4) forming the die.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As shown in fig. 1, the present embodiment provides a multipurpose mold, which comprises a lower mold, a flaring mold 9 assembly and a forming mold 13 assembly; the lower die and the flaring die 9 assembly are matched for use to finish the flaring of the workpiece and the expansion of the diameter of the workpiece; the lower die and the forming die assembly are matched for use to finish the forming process of the workpiece. The lower die comprises a female die 5, an ejector plate 4 and an expanding die 6 are arranged in the female die 5, the ejector plate 4 and the expanding die 6 are respectively provided with different height series, and workpieces with different widths can be processed by using the ejector plate 4 and the expanding die 6 with different height series. The flaring die 9 assembly comprises a cone 8 and a flaring die 9, the flaring die 9 assembly is pressed downwards, the flaring die 9 reams the hole of the workpiece, meanwhile, the cone 8 can be inserted into the flaring die 6, the flaring die 6 expands outwards when the cone 8 moves downwards in the flaring die 6, and the flaring die 6 contracts inwards when the cone 8 moves upwards in the flaring die 6. The forming die 13 assembly comprises a cone 8 and a forming die 13, and the cone 8 can be inserted into the expanding die 6. When the forming die 13 is pressed down, the forming die 13 can press-form the workpiece, and when the cone 8 moves downward in the expanding die 6, the expanding die 6 expands outward to form the workpiece. In the multipurpose die of the embodiment, a workpiece is sleeved on the expanding die 6, the expanding die 9 assembly is pressed downwards, the diameter of the workpiece is expanded by the expanding die 6 while the cone 8 moves downwards in the expanding die 6, and the diameter of the workpiece is expanded by the expanding die 9; the forming die 13 is pressed down, the conical body 8 moves downwards in the expanding die 6, the forming die 13 presses the workpiece to form the workpiece, and the ejector plate 4 and the expanding die 6 with different heights are replaced to form the workpieces with different widths. The multipurpose die can be used for processing workpieces with different width sizes, the expanding die 6 and the ejection plate 4 can be replaced, and the multipurpose die is suitable for forming workpieces with different width series and low in investment cost. The flaring assembly of the embodiment flares a workpiece, and simultaneously the expanding die 6 expands the workpiece under the action of the cone 8, so that the forming effect is good.

The flaring die assembly of this embodiment further comprises an upper die plate 11, and the middle part of the lower end of the upper die plate 11 is detachably connected with the cone 8, preferably by screws. The lower end of the upper die plate 11 is detachably connected with a flaring die 9, preferably by screws, around the cone 8. The forming die assembly of this embodiment further comprises an upper die plate 11, and the middle part of the lower end of the upper die plate 11 is detachably connected with the cone 8, preferably by screws. The lower end of the upper die plate 11 is detachably connected with a forming die, preferably a screw connection, around the cone 8. The lower end of the forming die 13 is adapted to the shape of the inner side of the workpiece.

The lower die of this embodiment still includes lower bolster 1 and knock-out pin 3, installs die 5 on the lower bolster 1, is equipped with the tang on the lower bolster 1, and the tang of lower bolster 1 and the internal diameter looks adaptation of die 5. When the lower template 1 and the female die 5 are installed, the female die 5 can be clamped at the seam allowance of the lower template 1, and then the lower template 1 is connected with the female die 5. The lower template 1 is detachably connected with the female die, preferably by adopting a screw. An ejector plate 4 is arranged on the lower template 1 and positioned on the inner side of the female die 5, a positioning spigot is arranged at the top of the ejector plate 4, and the expanding die 6 can be clamped at the positioning spigot when contracting inwards; the ejector rod 3 penetrates through the lower die to be connected with the ejector plate 4, preferably, the ejector rod 3 is arranged at the center of the ejector plate 4, the ejector rod 3 is pushed upwards, the ejector plate 4 is jacked upwards, and the ejector plate 4 ejects a workpiece out of the female die 5. Further, a gap is formed between the outer side of the ejector plate 4 and the inner side of the female die 5, so that the ejector plate 4 can move up and down conveniently.

As shown in fig. 4-5, the ejector plate 4 further includes an upper plate and a lower plate, the upper plate and the lower plate are connected by a rib plate, the upper plate is provided with a central hole, the cone 8 can extend into the central hole, the top of the upper plate is provided with a positioning spigot, and the center of the lower plate is connected with the ejector rod 3. The ejector plate 4 of this embodiment adopts the structure of upper plate, hypoplastron and floor, alleviates the weight of ejector plate 4, makes things convenient for the change of ejector plate 4, and when setting up the ejector plate 4 of co-altitude, the structure of upper plate and hypoplastron is unchangeable, only need change the floor the height can, reduce the input cost of ejector plate 4.

As shown in fig. 1, an annular protrusion is disposed on the outer side of the upper end of the female die 5, and the annular protrusion is in arc transition connection with the female die 5, so as to increase the strength of the die. The inner side of the female die 5 is matched with the outer side of the workpiece, and the size of the cylindrical structure in the female die 5 is matched with the maximum width of the workpiece.

As shown in fig. 1-3, the expanding die 6 of the present embodiment includes 6-12 expanding blocks, and the outer sides of the expanding blocks are provided with tension spring grooves, so that the phenomena of cracks and block falling during heat treatment caused by the tension spring grooves arranged on the upper end surfaces of the expanding blocks are avoided. At least one tension spring groove is arranged, and the tension springs 7 are arranged in the tension spring grooves to enable the expanding blocks to form expanding dies 6. When the cone 8 moves downwards on the inner side of the expanding die 6, namely moves downwards in the conical holes formed on the inner sides of the expanding blocks, the expanding blocks expand outwards under the pushing action of the cone 8, so that the expanding of the expanding die 6 is realized, and the workpiece on the outer side of the expanding die 6 is expanded; when the cone 8 moves upwards, the plurality of expanding blocks contract inwards under the action of the tension spring 7, so that the expanding die 6 contracts, and the expanding die 6 is separated from the workpiece. The taper 8 of this embodiment is sized for the largest width workpiece. When the multipurpose mold is applied to machining of the inner rim, the cone 8 is suitable for the inner rim with the maximum cylinder width, the inner rim comprises a cylinder part and a rim part, the inner rim with different widths is machined, the ejector plate 4 and the expanding mold 6 with different height series are adopted, and the size of the cylindrical structure in the female mold 5 is matched with the maximum width of the cylinder part of the inner rim.

The application process of the multi-purpose mold of the embodiment is as follows:

firstly, a workpiece is placed between an expanding die 6 and a female die 5, at the moment, the expanding die 6 is in a contraction state under the action of a tension spring 7, and the inner side of the expanding die 6 is clamped at a positioning seam allowance of an ejector plate 4; secondly, when the flaring die assembly moves downwards, the flaring die 9 extends into the inner side of the workpiece and flares the workpiece, the cone 8 is gradually inserted into the flaring die 6 and continues to move downwards, the flaring die 6 expands outwards under the action of the cone 8, the workpiece is widened by the flaring die 6, meanwhile, the flaring is in place and is easy to form subsequently, and after the flaring of the workpiece is finished, the flaring die 9 assembly moves upwards to separate from the lower die; thirdly, the forming die 13 presses the workpiece while the forming die assembly moves downwards, the cone 8 is gradually inserted into the expanding die 6 and continues to move downwards, the expanding die 6 expands outwards under the action of the cone 8, the workpiece is expanded to the forming size by the expanding die 6, the forming of the workpiece is completed, and the forming die assembly is lifted upwards; and finally, the ejector rod 3 is moved upwards to drive the ejector plate 4 to eject the workpiece. When workpieces with other width dimensions need to be machined, the expanding die 6 and the ejector plate 4 are replaced, and the investment cost is low.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A multi-purpose die comprises a lower die, a flaring die assembly matched with the lower die for use and a forming die assembly matched with the lower die for use, and is characterized in that the lower die comprises a female die, wherein a knockout plate and a diameter expanding die are arranged in the female die, and the knockout plate and the diameter expanding die are respectively provided with different height series;

2. The multipurpose mold according to claim 1, wherein the lower mold further comprises a lower template, a female mold is mounted on the lower template, and an ejector plate is arranged on the lower template and located on the inner side of the female mold.

3. The multipurpose mold according to claim 1, wherein the diameter-expanding mold comprises 6 to 12 diameter-expanding blocks, and tension springs are provided in the tension spring grooves on the outer sides of the diameter-expanding blocks to combine the diameter-expanding blocks into the diameter-expanding mold.

4. The multipurpose mold as claimed in claim 1, wherein a positioning spigot is provided on the top of the ejector plate, and the expanding mold can be clamped at the positioning spigot when it is retracted inward;

5. The multi-purpose mold according to claim 1, wherein the female mold has an annular protrusion on the outside of the upper end thereof.

6. The multi-purpose mold of claim 1, wherein the inside of said female mold is adapted to the outside of said workpiece.

7. The multi-purpose mold of claim 1, wherein a gap is provided between an outer side of the ejector plate and an inner side of the cavity.

8. The multi-purpose mold of claim 2, wherein the lower mold further comprises ejector pins, the ejector pins passing through the lower platen and being connected to the ejector plate.

9. The multipurpose mold according to claim 2, wherein a spigot is provided on the lower mold plate, the spigot of the lower mold plate is adapted to the inner diameter of the female mold, and the female mold can be clamped at the spigot of the lower mold plate.

10. The multi-purpose mold of claim 5, wherein said annular protrusion is in circular arc transition with said female mold.