CN214290412U

CN214290412U - Structure for prolonging service life of bearing tapered roller die

Info

Publication number: CN214290412U
Application number: CN202023049600.7U
Authority: CN
Inventors: 刘军
Original assignee: Shenzhen Hongli Precision Tool Co ltd
Current assignee: Shenzhen Hongli Precision Tool Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-28
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses an improve structure in mould life-span for bearing taper roller, including mould shaping portion, this mould shaping portion includes mould shell down, go up the mould shell, the mould shell has first appearance chamber in order to fix a tungsten steel pad down, go up the mould shell, its and the relative position who holds the chamber first, be provided with the second and hold the chamber, the second holds the chamber and is fixed with and folds last tungsten steel and tungsten steel of establishing together, tungsten steel down, be formed with coaxial passageway between tungsten steel pad and the lower mould shell, wear to be equipped with the thimble in this passageway, the passageway reaming of tungsten steel down, make its diameter be greater than the passageway diameter of tungsten steel pad and form the step between passageway and the tungsten steel pad on it, be provided with the sleeve pipe that can get in this step department, this sheathed tube internal diameter is the same with tungsten steel pad internal diameter. The utility model discloses can improve the life-span of volume production mould, reduce the number of times of shutting down in the production, and then improve production efficiency, reduce the use number of mould, reduce the raw and other materials consumption and the energy resource consumption of mould production.

Description

Structure for prolonging service life of bearing tapered roller die

Technical Field

The utility model relates to a mould, specific saying so relates to an improve structure in mould life-span for bearing taper roller.

Background

The material used in the forming part of the existing die is hard alloy, and the periphery and the bottom of the existing die are made of die steel (as shown in figure 1).

When the mold is used for production, the movable side punch pushes a product at a previous station into the mold cavity, and the product begins to deform gradually due to the action of force after contacting with the mold along with the process that the product enters the mold cavity, so that the product with the shape consistent with that of the mold cavity is finally produced.

The die of the type has larger stress on the bottom surface of the die, the sharp corner of the die is easy to collapse due to the fact that the die cannot be adjusted, and the die cannot be used after being collapsed. And the type of the die is in a non-replaceable form, and the whole die cannot be used when one part is damaged. The mold needs to be frequently replaced in the production process to ensure production. The raw materials for producing the hard alloy use various trace metal elements, so the price of the materials is high; the high hardness characteristic of the hard alloy also makes the processing of the hard alloy very difficult, the common processing method is difficult to realize, the electric discharge processing, the wire cutting processing and the like are needed, and the production cost of the die is high; in the structure of the existing mould, the part which is easily damaged by stress is basically the sharp corner at the bottom of the mould, and the whole mould is completely scrapped if a point is damaged, so that the service life is short.

SUMMERY OF THE UTILITY MODEL

To the deficiency among the prior art, the to-be-solved technical problem of the utility model lies in providing an improve bearing die life-span for tapered roller's structure, the purpose of designing this structure is in order to increase the life-span of mould.

In order to solve the technical problem, the utility model discloses a following scheme realizes: the utility model discloses an improve structure in mould life-span for bearing taper roller, including mould shaping portion, this mould shaping portion includes the lower mould shell, locates last mould shell on the lower mould shell, the lower mould shell has first appearance chamber with a fixed tungsten steel pad, go up the mould shell, its with the relative position that first appearance chamber is provided with the second and holds the chamber, the second holds the chamber and is fixed with and folds last tungsten steel and tungsten steel that establish together down, tungsten steel pad down with be formed with coaxial passageway down between the mould shell, wear to be equipped with the thimble in this passageway, the passageway reaming of tungsten steel makes its diameter be greater than down the passageway diameter of tungsten steel pad and above that with form the step between the tungsten steel pad, be provided with the sleeve pipe that can get in this step department, this sheathed tube internal diameter with the tungsten steel pad internal diameter is the same.

Furthermore, the upper opening of the lower tungsten steel channel is provided with a product forming groove.

Furthermore, the upper end of the sleeve is level with or protrudes out of the bottom groove surface of the product forming groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides high bearing is mould life-span's for tapered roller structure mainly used bearing tapered roller's production. The number of tapered rollers used is very large, so the industry basically adopts a high-speed and high-efficiency press-manufacturing method for mass production. However, in the mass production process, the production is often stopped due to the damage of the die, and the production of the tapered roller is finally influenced. And the utility model discloses can improve the life-span of volume production mould, reduce the unnecessary number of times of shutting down in the production, and then improve production efficiency. The number of the used moulds can be reduced, and the raw material consumption and the energy consumption of the mould production are reduced.

Drawings

Fig. 1 is a view showing a structure of a mold in the prior art.

Fig. 2 is the structure diagram of the mold of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making more clear and definite definitions of the protection scope of the present invention. It is obvious that the described embodiments of the invention are only some of the embodiments of the invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1: the utility model discloses a concrete structure as follows:

referring to fig. 2, the structure for prolonging the service life of the mold for tapered rollers of bearings of the present invention comprises a mold forming part, the mould forming part comprises a lower mould shell 6 and an upper mould shell 3 arranged on the lower mould shell 6, the lower mould shell 6 is provided with a first containing cavity for fixing a tungsten steel pad 5, the upper mould shell 3, a second containing cavity is arranged at the position opposite to the first containing cavity, the second containing cavity is fixed with an upper tungsten steel 2 and a lower tungsten steel 4 which are overlapped together, a coaxial channel is formed among the lower tungsten steel 4, a tungsten steel pad 5 and the lower mould shell 6, a thimble 7 is arranged in the channel in a penetrating way, the diameter of the channel of the lower tungsten steel 4 is expanded to be larger than that of the channel of the tungsten steel pad 5, a step is formed between the channel on the lower tungsten steel 4 and the tungsten steel pad 5, a sleeve 8 which can be taken and placed is arranged at the step, and the inner diameter of the sleeve 8 is the same as that of the tungsten steel pad 5.

A preferred technical solution of this embodiment: and the upper opening of the channel of the lower tungsten steel 4 is provided with a product forming groove.

A preferred technical solution of this embodiment: the upper end of the sleeve 8 is level with or protrudes out of the bottom groove surface of the product forming groove.

The structure of the present invention is a structure in which a sleeve is added to the bottom of the mold forming portion (as shown in fig. 2). The processing method and the improvement of the product are not changed. The movable side punch pushes a product at a previous station into a die cavity, and the product begins to deform gradually due to the action of force after contacting with the die along with the process that the product enters the die cavity, so that the product with the shape consistent with the die cavity is finally produced.

According to the processing method, the stress of the bottom of the mold is kept unchanged, but the sleeve is added, the sleeve can be adjusted to protrude out of the bottom of the mold for a certain height, so that the stress position is changed, and the vulnerable part is protected and is not easily damaged as before, thereby prolonging the service life of the mold. The die before improvement has no adjusting function, the stress mode cannot be changed, and the die can only be passively accepted.

The improved die can greatly reduce the shutdown times in production, thereby improving the production efficiency and further saving the waste of raw materials and resources.

Example 2:

the following is a comparison of data before and after improvement:

before improvement, the service life of the die with the product specification of 10-18 mm and 18-23 mm is about 1-2 ten thousand per die.

After the improvement, the service life of the product specification is about 30-50 ten thousand per unit at 10-18 mm. The product specification is about 20-30 ten thousand per unit life at 18-23 mm.

The comparison of the service lives of the dies shows that the service life of the dies is at least improved by 10 times, the shutdown times of die replacement in the machining process are reduced by 9 times, and the material waste caused by shutdown is avoided. The cost of the die is about 1/10, and the raw materials used for manufacturing the die can be greatly reduced.

To sum up, the utility model discloses a mould structure mainly is through having increased sheathed tube structure bottom the mould, makes the atress mode of mould can become adjustable. The stress position is changed by adjusting the height of the sleeve to protrude a certain height from the bottom surface of the mold, so that the stress position of the mold becomes better and more reasonable, the condition of extreme stress of individual positions is avoided, the purpose of protecting vulnerable parts is realized, and the service life of the mold is finally prolonged.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. A structure for prolonging the service life of a die for a bearing taper roller comprises a die forming part, wherein the die forming part comprises a lower die shell (6) and an upper die shell (3) arranged on the lower die shell (6), the lower die shell (6) is provided with a first containing cavity for fixing a tungsten steel pad (5), the upper die shell (3) is provided with a second containing cavity at the position opposite to the first containing cavity, the second containing cavity is fixedly provided with an upper tungsten steel (2) and a lower tungsten steel (4) which are overlapped together, a coaxial channel is formed among the lower tungsten steel (4), the tungsten steel pad (5) and the lower die shell (6), a thimble (7) is penetrated in the coaxial channel, the structure is characterized in that the channel of the lower tungsten steel (4) is reamed to ensure that the diameter of the channel is larger than the diameter of the channel of the tungsten steel pad (5) and a step is formed between the channel on the lower tungsten steel pad (5), a sleeve (8) which can be taken and placed is arranged at the step, and the inner diameter of the sleeve (8) is the same as that of the tungsten steel pad (5).

2. The structure for improving the service life of the die for the bearing tapered roller as claimed in claim 1, wherein the upper opening of the passage of the lower tungsten steel (4) is provided with a product forming groove.

3. The structure for improving the life of a mold for a bearing tapered roller as set forth in claim 2, wherein the upper end of said sleeve (8) is flush with or protrudes from the bottom groove surface of said product-forming groove.