CN209867358U - Pressure-resistant high-precision fluted disc forming die - Google Patents

Abstract

The utility model relates to a withstand voltage high accuracy fluted disc forming die, including die body, die cavity and axle sleeve, the die cavity offer in the die body on the surface, the axle sleeve be fixed in on the die body, the inside formation shaft hole of axle sleeve, the shaft hole in wear to be equipped with the support column, the tip fixedly connected with locating piece of support column, the tip of axle sleeve set up the guiding groove and the constant head tank of mutual intercommunication, the support column arrange in the shaft hole and rotate and make the locating piece imbed in the constant head tank along the guiding groove, reach the purpose that promotes the fluted disc precision.

Description

Pressure-resistant high-precision fluted disc forming die

Technical Field

The utility model relates to a powder metallurgy technical field, in particular to withstand voltage high accuracy fluted disc forming die.

Background

Powder metallurgy is an industrial technology for preparing metal powder or metal materials, composite materials and various products by using metal powder (or a mixture of metal powder and nonmetal powder) as a raw material and performing forming and sintering. At present, the powder metallurgy technology has been widely applied to the fields of transportation, machinery, electronics, aerospace, weaponry, biology, new energy, information, nuclear industry and the like, and becomes one of the most active branches in new material science. The powder metallurgy technology has a series of advantages of remarkable energy saving, material saving, excellent performance, high product precision, good stability and the like, and is very suitable for mass production. In addition, materials and complex parts, which are partially impossible to manufacture by conventional casting and machining methods, can also be manufactured by powder metallurgy, and thus are receiving great attention from the industry.

The broad powder metallurgy industry encompasses ferrous tools, cemented carbides, magnetic materials, and powder metallurgy, among others. The powder metallurgy industry in a narrow sense refers only to powder metallurgy products, including (for the most part) powder metallurgy parts, oil-impregnated bearings, metal injection molded articles, and the like.

The fluted disc is a widely used part, which is often used in speed measurement and high precision equipment, so the precision requirement of the fluted disc in industrial application is very high, and the fluted disc is manufactured by adopting a powder metallurgy process at present for manufacturing the high-precision fluted disc. The fluted disc manufactured by adopting the powder metallurgy mode has excellent performance, high product precision and good stability.

When the fluted disc is manufactured by adopting a powder metallurgy process, a die is needed, and after a molding material is injected into a cavity of the die, the molding material is pressurized, so that the molding material is pressed and molded.

Referring to fig. 1, the conventional mold includes a mold body, a shaft sleeve is disposed at the center of the mold body, and a shaft hole is disposed inside the shaft sleeve and used for inserting a rotating shaft. And a cavity is arranged on the die body and positioned on the outer side of the shaft sleeve, the cavity is close to the shaft sleeve, a fixing hole is arranged at the edge part of the die body, and the fixing hole is used for penetrating a bolt so as to fix the die body on the workbench. In the pressurizing process, the shaft sleeve is subjected to extrusion force of molding materials, and the shaft sleeve is possibly pressed and deformed under the action of strong extrusion force due to the fact that the wall thickness of the shaft sleeve is thin, so that the shape of the cavity is slightly changed, and the precision of the molded fluted disc is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a withstand voltage high accuracy fluted disc forming die through penetrating the support column in the axle sleeve, promotes the structural strength of axle sleeve, makes the precision of fluted disc promote.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a withstand voltage high accuracy fluted disc forming die, includes die body, die cavity and axle sleeve, the die cavity set up in the die body on the surface, the axle sleeve be fixed in on the die body, the inside formation shaft hole of axle sleeve, the shaft hole in wear to be equipped with the support column, the tip fixedly connected with locating piece of support column, the tip of axle sleeve seted up the guiding groove and the constant head tank of mutual intercommunication, the support column arrange in the shaft hole and rotate and make the locating piece imbed in the constant head tank along the guiding groove.

As an optimized scheme of the utility model, the support column keep away from the one end of locating piece and seted up the lightening hole, the lightening hole internal fixation have a plurality of collars.

As an optimized scheme of the utility model, the inner wall of beaded finish on be fixed with a plurality of stiffeners, it is a plurality of the stiffener is the hexagonal star and distributes.

As an optimized scheme of the utility model, the support column one end that is close to the locating piece be connected with the extension rod, the extension rod on be connected with the handle.

As a preferred scheme of the utility model, the extension rod include extension spring, sleeve pipe and loop bar, sleeve pipe and support column fixed connection, loop bar one end wear to locate in the sleeve pipe, the other end extends toward keeping away from the sheathed tube direction, extension spring one end and bushing, the other end is connected with the loop bar.

As a preferred scheme of the utility model, the handle be globular.

As an optimized proposal of the utility model, the supporting column is kept away from one end of the positioning block and is provided with a guide inclined plane.

To sum up, the utility model discloses following beneficial effect has:

the supporting column penetrates into the shaft sleeve, then the supporting column is rotated, the positioning block is embedded into the positioning groove along the guide groove, the positioning of the supporting column is realized, in the pressurizing process, the direction of supporting force provided by the supporting column is opposite to the direction of extrusion force of the molding material on the shaft sleeve, and the supporting force can offset part of extrusion force of the molding material on the shaft sleeve, so that the external force applied to the shaft sleeve per se is reduced, and the compressive strength of the shaft sleeve is improved; meanwhile, the weight reduction concave holes can reduce the mass and facilitate transportation; the setting of stiffener and beaded finish further promotes the structural strength of support column to further promote the holding capacity of axle sleeve.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

Fig. 2 is a schematic structural view showing a reinforcing bar.

Fig. 3 is a schematic structural view of the extension rod.

The corresponding part names indicated by the numbers and letters in the drawings:

1. a mold body; 11. a cavity; 12. a shaft sleeve; 13. a shaft hole; 2. a support pillar; 21. positioning blocks; 31. a guide groove; 32. positioning a groove; 4. a fixing hole; 5. lightening holes; 51. a reinforcement ring; 52. a reinforcing bar; 6. an extension rod; 61. a tension spring; 62. a sleeve; 63. a loop bar; 7. a handle; 8. a guide ramp.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example (b):

as shown in fig. 1 to 3, a pressure-resistant high-precision fluted disc forming die comprises a die body 1, a cavity 11 and a shaft sleeve 12. The cavity 11 is opened on the surface of the die body 1; the shaft sleeve 12 is fixed in the middle of the die body 1. A shaft hole 13 is formed inside the boss 12.

A supporting column 2 penetrates through the shaft hole 13, and a positioning block 21 is fixedly connected to the end part of the supporting column 2; the end of the sleeve 12 is provided with a guide groove 31 and a positioning groove 32 which are communicated with each other. The guide groove 31 is provided obliquely. The support post 2 is placed in the shaft hole 13 and rotated to insert the positioning block 21 into the positioning groove 32 along the guide groove 31.

When the shaping, at first penetrate the bolt in the fixed orifices 4 of die body 1, screw up the bolt, fix die body 1 on the workstation, insert support column 2 in the shaft hole 13, pour into molten metal or add softened shaping material into the die cavity 11 again, operate stamping machine afterwards, make the clamp plate (movable mould) of die body 1 top begin to push down, the clamp plate is with the compaction of the shaping material in the die cavity 11, the clamp plate rises afterwards, has just formed fashioned fluted disc in the die cavity 11.

When grinding, the mold is transferred to a grinding table, the supporting column 2 is taken out, the rotating shaft penetrates through the shaft hole 13 and is relatively fixed with the mold, the rotating shaft rotates, meanwhile, the grinding stone is in contact with the formed fluted disc in the cavity 11, grinding and polishing are carried out on the fluted disc, burrs are removed, and the surface brightness of the fluted disc is improved.

Because in the pressurization process, support column 2 has been inserted in axle sleeve 12, support column 2 plays the effect of providing extra supporting force, the holding power that support column 2 provided is opposite with the direction of the extrusion force of shaping material to axle sleeve 12, the holding power can offset part shaping material to the extrusion force of axle sleeve 12, thereby the external force that makes axle sleeve 12 self receive reduces, the compressive strength of axle sleeve 12 has been improved, prevent that axle sleeve 12 compression deformation, ensure the precision of die cavity 11, thereby the shaping precision of fluted disc has effectively been ensured.

One end of the support column 2, which is far away from the positioning block 21, is provided with a lightening hole 5; a plurality of reinforcement rings 51 are fixed in the lightening hole 5, and the reinforcement rings 51 are arranged along the length direction of the lightening hole 5. The support column 2 can maintain a certain supporting force while reducing its weight.

In order to facilitate the support column 2 to be inserted into the shaft hole 13, a guide inclined surface 8 is formed at one end of the support column 2 away from the positioning block 21.

In order to further increase the structural strength of the support column 2, three reinforcing rods 52 are fixed to the inner wall of each reinforcing ring 51, and the three reinforcing rods 52 are crossed with each other and distributed in a hexagonal star shape.

In order to facilitate the support column 2 to be moved out of the shaft hole 13, an extension rod 6 is fixedly connected to one end of the support column 2 close to the positioning block 21; the extension rod 6 is connected with a handle 7, wherein the handle 7 is spherical.

The extension rod 6 includes a tension spring 61, a sleeve 62, and a sleeve rod 63. The loop bar 63 is rectangular. The sleeve 62 is fixedly connected with the support column 2; one end of the loop bar 63 is inserted into the sleeve 62, and the other end extends away from the sleeve 62. The tension spring 61 has one end connected to the sleeve 62 and the other end connected to the loop bar 63.

When the supporting column 2 needs to be pulled out of the shaft hole 13, the loop bar 63 is pulled in a direction away from the mold body 1, the tension spring 61 is stretched, then the loop bar 63 drives the sleeve 62 to rotate, the sleeve 62 drives the supporting column 2 to rotate, and the positioning block 21 is moved into the guide groove 31 from the positioning groove 32; through the spring action of extension spring 61, locating piece 21 deviates from guide slot 31, and the operation is more convenient.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. The utility model provides a withstand voltage high accuracy fluted disc forming die, includes die body (1), die cavity (11) and axle sleeve (12), die cavity (11) set up on the surface of die body (1), axle sleeve (12) be fixed in on die body (1), the inside formation shaft hole (13) of axle sleeve (12), its characterized in that, shaft hole (13) in wear to be equipped with support column (2), the tip fixedly connected with locating piece (21) of support column (2), the tip of axle sleeve (12) set up guiding groove (31) and constant head tank (32) that communicate each other, support column (2) arrange in shaft hole (13) and rotate and make locating piece (21) imbed in constant head tank (32) along guiding groove (31).

2. The pressure-resistant high-precision fluted disc forming die according to claim 1, wherein a lightening hole (5) is formed in one end of the supporting column (2) far away from the positioning block (21), and a plurality of reinforcing rings (51) are fixed in the lightening hole (5).

3. The mold according to claim 2, wherein a plurality of reinforcing rods (52) are fixed to an inner wall of the reinforcing ring (51), and the plurality of reinforcing rods (52) are arranged in a hexagonal star shape.

4. The pressure-resistant high-precision fluted disc forming mold according to claim 1 or 3, wherein an extension rod (6) is connected to one end of the supporting column (2) close to the positioning block (21), and a handle (7) is connected to the extension rod (6).

5. The pressure-resistant high-precision fluted disc forming mold according to claim 4, wherein the extension rod (6) comprises a tension spring (61), a sleeve (62) and a loop bar (63), the sleeve (62) is fixedly connected with the support column (2), one end of the loop bar (63) is arranged in the sleeve (62) in a penetrating manner, the other end of the loop bar extends in a direction away from the sleeve (62), one end of the tension spring (61) is connected with the sleeve (62), and the other end of the tension spring is connected with the loop bar (63).

6. The pressure-resistant high-precision fluted disc forming die according to claim 4, wherein the handle (7) is spherical.

7. The pressure-resistant high-precision fluted disc forming mold according to claim 4, wherein one end of the supporting column (2) away from the positioning block (21) is provided with a guide inclined surface (8).