CN217370133U

CN217370133U - Necking tool for oil storage cylinder of automobile shock absorber

Info

Publication number: CN217370133U
Application number: CN202220672319.9U
Authority: CN
Inventors: 胡铁; 祝汝林; 李�杰
Original assignee: Sichuan Ningjiang Shanchuan Machinery Co ltd
Current assignee: Sichuan Ningjiang Shanchuan Machinery Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-09-06
Anticipated expiration: 2032-03-25

Abstract

The utility model discloses an automobile shock absorber ware oil storage section of thick bamboo necking down frock, including an oil storage section of thick bamboo, necking down frock and fixed frock, the necking down frock includes die, terrace die, fixed frock includes anchor clamps, lower anchor clamps, it presss from both sides tightly to go up anchor clamps, lower anchor clamps the oil storage section of thick bamboo, the terrace die sets up in the oil storage section of thick bamboo, the die sets up in the oil storage section of thick bamboo outside, terrace die fixedly connected with terrace die core bar, die and horizontal extrusion hydro-cylinder swing joint compare with traditional necking down frock, the device of the invention changes traditional vertical pushing down into horizontal extrusion, takes necking down oil storage section of thick bamboo wall thickness to thicken, guarantees in the space that the necking down is implemented. And the male die and the female die are subjected to vacuum quenching and tempering, surface TD treatment is carried out, arc transition is adjusted, the service life of the female die is prolonged, the use of the male die ensures the necking coaxiality and the excircle roundness of the oil storage cylinder, and the qualification rate is improved.

Description

Necking tool for oil storage cylinder of automobile shock absorber

Technical Field

The utility model belongs to the technical field of an oil storage cylinder of automobile shock absorber, concretely relates to automobile shock absorber ware oil storage cylinder necking down frock.

Background

At present, a special tool needs to be used for necking down the oil storage cylinder according to the wall thickness specification, the size and the length of the necking down of the oil storage cylinder, the necking down of the oil storage cylinder with the wall thickness can cause thinning, and the prior die adopts the following steps: and (3) coil quenching process.

The inventor finds that the prior arts have at least the following technical problems in the practical use process:

the coil quenching process die only has the hardness of a certain depth of a surface layer, so that the service life of the die is generally not longer than about 2 ten thousand per piece, and a new die needs to be frequently replaced and used. The coaxiality of the oil storage cylinder after necking is out of the market, the difference of the roundness of the outer diameter is about 0.5mm, and the whole service performance of the product is influenced due to the difficulty in subsequent processing.

Disclosure of Invention

Insufficient to the machining precision who exists among the prior art, lead to in the oil storage section of thick bamboo uneven, and the short problem of processing work piece life, the utility model provides an automobile shock absorber ware oil storage section of thick bamboo necking down frock, its purpose is: the process precision of necking down is promoted, the service life of die, terrace die is promoted simultaneously, the follow-up processing of product of being convenient for promotes the qualification rate.

In order to realize the purpose, the utility model adopts the technical scheme that: the utility model provides an automobile shock absorber ware oil storage section of thick bamboo necking down frock, includes the oil storage section of thick bamboo, necking down frock and fixed frock, the necking down frock includes die, terrace die, fixed frock includes anchor clamps, lower anchor clamps, it presss from both sides tightly to go up anchor clamps, lower anchor clamps the oil storage section of thick bamboo, the terrace die sets up in the oil storage section of thick bamboo, the die sets up in the oil storage section of thick bamboo outside, terrace die fixedly connected with terrace die core bar, die and horizontal extrusion hydro-cylinder swing joint.

The further preferable technical scheme is as follows: the clamp is characterized by further comprising a vertical hydraulic device, and the upper clamp is movably connected with the vertical hydraulic device.

The further preferable technical scheme is as follows: the surface of the male die is a smooth fillet.

The further preferable technical scheme is as follows: the die comprises a guide part and a necking part.

The further preferable technical scheme is as follows: the diameter of the guide part is gradually reduced from outside to inside, and the maximum diameter of the guide part is larger than the outer diameter of the oil storage cylinder

The further preferable technical scheme is as follows: the guiding part is a conical surface, the inner diameter of the necking part is smaller than the outer diameter of the oil storage cylinder, and the inner diameter of the necking part is larger than the inner diameter of the oil storage cylinder.

The further preferable technical scheme is as follows: the maximum diameter of the male die is smaller than the inner diameter of the oil storage cylinder.

The further preferable technical scheme is as follows: the male die core rod comprises a connecting part and a pushing part.

The further preferable technical scheme is as follows: the male die core rod penetrates through the male die, the diameter of the connecting part is smaller than that of the male die, and the diameter of the propelling part is smaller than the inner diameter of the oil storage cylinder.

The further preferable technical scheme is as follows: and carrying out vacuum quenching tempering and surface TD treatment on the male die and the female die.

Compared with the prior art, the technical scheme of the utility model have following advantage beneficial effect:

1. compared with the prior necking device, the device of the invention changes the traditional vertical downward pressing into horizontal extrusion, the wall thickness of the oil storage cylinder with the necking can be thickened, and the necking implementation is ensured in space.

2. The convex die and the concave die are subjected to vacuum quenching and tempering, the surface TD treatment is carried out, the arc transition is adjusted, and the service life of the concave die is prolonged.

3. The use of the male die ensures the necking coaxiality and the excircle roundness of the oil storage cylinder, and the qualification rate is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of the necking tool of the oil storage cylinder of the automobile shock absorber.

Fig. 2 is a detailed schematic diagram of the necking tool of the oil storage cylinder of the automobile shock absorber.

The labels in the figure are respectively: 1-upper fixture, 2-lower fixture, 3-oil storage cylinder, 4-male mold, 5-female mold, 6-male mold core rod.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but is merely representative of selected embodiments of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Example 1:

as shown in figure 1, a 3 necking down frocks of automobile shock absorber ware oil storage cylinder, including oil storage cylinder 3, necking down frocks and fixed frocks, necking down frocks include die 5, terrace die 4, fixed frocks include anchor clamps 1, lower anchor clamps 2, it presss from both sides tightly to go up anchor clamps 1, lower anchor clamps 2 oil storage cylinder 3, terrace die 4 sets up in oil storage cylinder 3, die 5 sets up in the oil storage cylinder 3 outside, 4 fixedly connected with terrace die core bar 6 of terrace die, die 5 and horizontal extrusion hydro-cylinder swing joint go up anchor clamps 1 and perpendicular hydraulic means swing joint, and terrace die 4 surface is smooth fillet, and die 5 includes guide portion and necking down portion, and the guide portion diameter reduces from outside to inside gradually, and the guide portion maximum diameter is greater than 3 external diameter of oil storage cylinder

The guiding part is a conical surface, the inner diameter of the necking part is smaller than the outer diameter of the oil storage barrel 3, the inner diameter of the necking part is larger than the inner diameter of the oil storage barrel 3, the maximum diameter of the male die 4 is smaller than the inner diameter of the oil storage barrel 3, the core rod of the male die 4 comprises a connecting part and a pushing part, the core rod 6 of the male die penetrates through the male die 4, the diameter of the connecting part is smaller than that of the male die 4, the diameter of the pushing part is smaller than the inner diameter of the oil storage barrel 3, and the male die 4 and the female die 5 are subjected to vacuum quenching tempering and surface TD treatment.

Placing the oil storage cylinder 3 to be necked on the lower fixture 2, and positioning by taking the lower fixture 2 as a reference; clamping the upper clamp 1 by using a vertical hydraulic device, dropping a long pin to position the oil storage cylinder 3, and adjusting the position of a positioning inductor on equipment to determine the length of the necking down; by using the special male die 4 and the female die 5, the horizontal extrusion oil cylinder firstly pushes the core rod 6 of the male die to enter the inner circle of the oil storage cylinder 3, the female die 5 follows and lags behind, and the core rod 6 of the male die performs extrusion necking to reach the length. The male die core rod 6 retreats first to adjust the coaxiality of the inner circle, the female die 5 follows and lags the male die 4 to retreat from the oil storage cylinder 3, and necking is completed.

Compared with the traditional necking tool, the device changes the traditional vertical downward pressing into horizontal extrusion, the wall thickness of the oil storage cylinder with the necking can be thickened, and the necking implementation is ensured in space.

And the male die and the female die are subjected to vacuum quenching and tempering, surface TD treatment is carried out, arc transition is adjusted, the service life of the female die is prolonged, the use of the male die ensures the necking coaxiality and the excircle roundness of the oil storage cylinder, and the qualification rate is improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "below," and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature.

The above are only preferred embodiments of the present invention, and it should be noted that the above preferred embodiments should not be considered as limitations of the present invention, and the scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. The utility model provides an automobile shock absorber ware oil storage section of thick bamboo necking down frock, its characterized in that, includes oil storage section of thick bamboo, necking down frock and fixed frock, the necking down frock includes die, terrace die, fixed frock includes anchor clamps, lower anchor clamps, it presss from both sides tightly to go up anchor clamps, lower anchor clamps the oil storage section of thick bamboo, the terrace die sets up in the oil storage section of thick bamboo, the die sets up in the oil storage section of thick bamboo outside, terrace die fixedly connected with terrace die core bar, die and horizontal extrusion hydro-cylinder swing joint.

2. The automobile shock absorber ware oil sump cylinder necking tool of claim 1, further comprising a vertical hydraulic device, wherein the upper clamp is movably connected with the vertical hydraulic device.

3. The automobile shock absorber oil storage cylinder necking tool of claim 2, wherein the surface of the male die is a smooth fillet.

4. The automobile shock absorber oil receiver necking tool of claim 3, wherein the die comprises a guide portion and a necking portion.

5. The automobile shock absorber oil storage cylinder necking tool according to claim 4, wherein the diameter of the guide portion is gradually reduced from outside to inside, and the maximum diameter of the guide portion is larger than the outer diameter of the oil storage cylinder.

6. The automobile shock absorber oil storage cylinder necking tool of claim 5, wherein the guide portion is a conical surface, the inner diameter of the necking portion is smaller than the outer diameter of the oil storage cylinder, and the inner diameter of the necking portion is larger than the inner diameter of the oil storage cylinder.

7. The automobile shock absorber oil storage cylinder necking tool of claim 6, wherein the maximum diameter of the male die is smaller than the inner diameter of the oil storage cylinder.

8. The automobile shock absorber oil storage cylinder necking tool of claim 7, wherein the male die core rod comprises a connecting part and a pushing part.

9. The automobile shock absorber oil storage cylinder necking tool of claim 8, wherein the punch core rod penetrates through the punch, the diameter of the connecting part is smaller than that of the punch, and the diameter of the pushing part is smaller than the inner diameter of the oil storage cylinder.

10. The automobile shock absorber oil storage cylinder necking tool of claim 9, wherein the male die and the female die are subjected to vacuum quenching tempering and surface TD treatment.