CN217726894U - Vent pipe necking forming die - Google Patents

Abstract

The utility model discloses a breather pipe throat forming die, including last clamp mould and lower clamp mould, it has lower clamping groove to press from both sides the mould to open down, it has last clamping groove to press from both sides the mould to open to go up, it is located to go up the clamp mould down press from both sides the mould top just go up clamping groove with lower clamping groove forms fixed chamber, and fixed chamber is cylindrical and fixed chamber is used for holding the breather pipe, still includes mount pad, inside lining axle and moulded die, wherein: the lining shaft is slidably arranged in the lower clamping groove, is coaxial with the fixed cavity and extends into a through hole of a vent pipe in the fixed cavity; the forming die is installed on the installation seat, the forming die is opposite to and coaxial with the fixed cavity, and the distance between the installation seat and the lower clamping die is adjustable. The utility model discloses convenient operation, the pipe fitting is in the throat man-hour, can not take place to warp and guarantee that the circularity is qualified.

Description

Vent pipe necking forming die

Technical Field

The utility model relates to a pipe fitting shaping correlation equipment technical field especially relates to a breather pipe throat forming die.

Background

At present, pipe fittings are formed by mainly pressing and contracting by a forming machine or punching by a special die, the forming machine mainly adopts a spinning mode, flat or hollow blanks are fixed on the die of a spinning machine by spinning, a spinning wheel or a driving rod is used for pressing the blanks while the blanks rotate along with a main shaft of a lathe, so that local plastic deformation is generated, and the local plastic deformation is gradually expanded to the whole surface of the blanks and is tightly attached to the die under the combined action of the feeding motion of the spinning wheel and the rotating motion of the blanks, so that the spinning processing of parts is completed. The special die is required to sleeve the pipe fitting on the upper die or the lower die, and the plastic deformation of the pipe fitting is realized through the mutual stamping of the upper die and the lower die. When the pipe fitting forming die in the prior art carries out forming processing on the pipe fitting, the pipe fitting is easy to deform, the roundness of the pipe fitting is unqualified, and the rejection rate is high.

SUMMERY OF THE UTILITY MODEL

For the technical problem who exists among the solution background art, the utility model provides a breather pipe throat forming die.

The utility model provides a breather pipe throat forming die, including last clamp mould and lower clamp mould, it has lower clamping groove to press from both sides the mould to open down, it has last clamping groove to press from both sides the mould to open to go up, it is located to go up the clamp mould top down just go up clamping groove with lower clamping groove forms fixed chamber, and fixed chamber is cylindrical and fixed chamber is used for holding the breather pipe, still includes mount pad, inside lining axle and moulded die, wherein:

the lining shaft is slidably arranged in the lower clamping groove, is coaxial with the fixed cavity and extends into a through hole of a vent pipe in the fixed cavity;

the forming die is arranged on the mounting seat, the forming die is opposite to and coaxial with the fixed cavity, and the distance between the mounting seat and the lower clamping die is adjustable;

the moulded die is unanimous with prior art's moulded die, the utility model discloses improve the part and lie in: the forming die does not rotate relative to the vent pipe in the forming process, the vent pipe is contracted through horizontal movement of the forming die relative to the vent pipe, the upper clamping bun is opened after the forming process is completed, the lining shaft is taken out in the process of taking out the lining shaft, the vent pipe is taken out together through the pushing and pressing binding sleeve, the vent pipe is fixed out from the lining shaft, and the lining shaft ensures the coaxiality of the vent pipe and the roundness of the vent pipe to be qualified in the forming process.

In order to facilitate the positioning of the vent pipe in the machining process and avoid the vent pipe from sliding in the fixed cavity, the end positioning part is further arranged in the fixed cavity and used for positioning one end of the vent pipe, which is far away from the forming die, and the end positioning part is further detachably arranged in the fixed cavity and further facilitates the necking machining of the vent pipes with different lengths.

Furthermore, a sliding hole is formed in the end positioning piece, and the lining shaft is slidably mounted in the sliding hole, so that the lining shaft is convenient to mount.

Furthermore, a clamping groove is formed in the lower clamping groove, and the end positioning piece is detachably mounted in the clamping groove.

Furthermore, the end positioning piece is annular, so that the lining shaft can be conveniently installed, and the axis of the lining shaft is coaxial with the axis of the fixed cavity.

Furthermore, the outer side wall of the end positioning part is coaxial with the inner side wall of the end positioning part, and when the end positioning part is installed in the fixed cavity, the axes of the outer side wall and the inner side wall of the end positioning part coincide with the axis of the fixed cavity.

Furthermore, the forming die is detachably mounted on the mounting seat, so that the forming die is further convenient to replace, and a plurality of machining and forming procedures can be performed on the breather pipe by clamping the breather pipe at one time.

Furthermore, a connecting block is fixed at one end of the mounting seat, which is far away from the forming die, and the connecting block is used for being connected with parts, such as a cylinder and an electric telescopic rod in the prior art, which can drive the mounting seat to move horizontally.

Furthermore, the axis of the fixed cavity is along the horizontal direction, so that the lining shaft is prevented from moving relative to the fixed cavity under the action of self gravity, and the processing precision is further increased.

The utility model discloses in, the breather pipe throat forming die that provides, through the relative breather pipe horizontal migration of moulded die and then realize the throat or the flaring to the breather pipe, the axiality of breather pipe is guaranteed to the inside lining axle in the course of working and guarantees that its circularity is qualified, convenient operation, and the pipe fitting adds man-hour at the throat, can not take place to warp and guarantee that the circularity is qualified.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural view of the present invention when expanding the vent pipe;

FIG. 2 is a front and rear comparison view of the flaring of a vent pipe;

FIG. 3 is a schematic view of the structure of the present invention when necking the flared end of the vent tube is performed;

FIG. 4 is a schematic view of the structure of the vent tube after the flared end has been necked down;

FIG. 5 is a schematic view of the structure of the other end of the ventilation tube when the present invention is necking;

fig. 6 is a schematic structural view of the other end of the vent pipe after necking.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

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; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. 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 application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-6, a breather pipe throat forming die comprises an upper clamping die 1 and a lower clamping die 2, wherein the lower clamping die 2 is provided with a lower clamping groove 20, the upper clamping die 1 is provided with an upper clamping groove 10, the upper clamping die 1 is positioned above the lower clamping die 2 and the upper clamping groove 10 and the lower clamping groove 20 form a fixed cavity, the fixed cavity is cylindrical and is used for accommodating a breather pipe 3, and the breather pipe throat forming die further comprises an installation seat 4, an end positioning part 5, a lining shaft 6 and a forming die 7, wherein:

the lower clamping groove 20 and the upper clamping groove 10 are semi-cylindrical through grooves respectively, the axis of the fixed cavity is along the horizontal direction, the side wall of the lower clamping groove 20 is provided with a semi-cylindrical clamping groove 21, the clamping groove 21 is coaxial with the lower clamping groove 20, the end positioning piece 5 is annular, and the end positioning piece 5 is clamped in the lower clamping groove 20;

the lining shaft 6 is slidably mounted in the end positioning piece 5 of the lower clamping groove 20, specifically, the end positioning piece 5 is provided with a sliding hole 50, the sliding hole 50 is an inner side wall of the end positioning piece 5, the sliding hole 50 is coaxial with an outer side wall of the end positioning piece 5, namely, the sliding hole 50 is coaxial with the lower clamping groove 21, the lining shaft 6 is slidably mounted in the sliding hole 50, the lining shaft 6 is coaxial with the sliding hole 50, so that the lining shaft 6 is coaxial with the fixed cavity after the lower clamping groove 20 and the upper clamping groove 10 form the fixed cavity, so as to ensure that the lining shaft 6 is coaxial with the vent pipe 3, and the lining shaft 6 extends into a through hole of the vent pipe 3 in the fixed cavity;

the forming die 7 is arranged on the mounting seat 4 in a clamping or threaded connection mode in the prior art, the forming die 7 is opposite to and coaxial with the fixed cavity, the forming die 7 is the same as the forming die 7 in the prior art, and the distance between the mounting seat 4 and the lower clamping die 2 is adjustable;

one end of the mounting seat 4 far away from the forming die 7 is fixed with a connecting block 8, and the connecting block 8 is used for being connected with a cylinder, an electric telescopic rod and the like in the prior art which can drive the mounting seat 4 to move horizontally.

In order to process a breather pipe 3 into a front-end and rear-end necking structure as shown in fig. 6, two parallel upper clamping grooves 10 are formed in an upper clamping die 1, two parallel lower clamping grooves 20 are formed in a lower clamping die 2, one upper clamping groove 10 is opposite to one lower clamping groove 20 to form a fixed cavity, the two lower clamping grooves 20 are respectively provided with a same clamping groove 21, two forming dies 7 are also arranged, and one forming die 7 is opposite to and parallel to one fixed cavity;

as shown in fig. 1, an end positioning member 5 needs to be clamped in a clamping groove 21 of a lower clamping groove 20, and a flaring die needs to be replaced for a forming die 7 opposite to the lower clamping groove 20, a vent pipe 3 is placed in the lower clamping groove 20, the end face of the vent pipe 3 is abutted to the end positioning member 5, then an upper clamping die 1 is covered to further fix the vent pipe 3 and the end positioning member 5, then a lining shaft 6 is moved to extend the lining shaft 6 into a through hole of the vent pipe 3, then an external moving mechanism drives an installation seat 4 to move towards the direction close to the lower clamping die 2 to realize the flaring of one end of the vent pipe 3 by the forming die 7, and the forming diagram after the flaring of the vent pipe 3 is shown in fig. 2;

then the moving mechanism drives the mounting seat 4 to move towards the direction far away from the lower clamping die, then the forming die 7 is replaced by a necking die, as shown in fig. 3, then the external moving mechanism drives the mounting seat 4 to move towards the direction close to the lower clamping die 2 to realize necking of the flaring part of the vent pipe 3 by the forming die 7, after the necking is completed, the moving mechanism drives the mounting seat 4 to move towards the direction far away from the lower clamping die, after the processing is completed, the upper steamed bread is opened, the lining shaft 6 is taken out, the vent pipe 3 is taken out together in the process of taking out the lining shaft 6, the vent pipe 3 is positioned from the lining shaft 6 by pushing and pressing the material binding sleeve, and after the necking of the vent pipe 3 is shown in fig. 4;

as shown in fig. 5, the end positioning member 5 is installed in the clamping groove 21 of the other lower clamping groove 20, the vent pipe 3 is placed in the lower clamping groove 20, the end face of the vent pipe abuts against the end positioning member 5, the upper clamping mold 1 is covered to further fix the vent pipe 3 and the end positioning member 5, the lining shaft 6 is moved to extend the lining shaft 6 into the through hole of the vent pipe 3, the external moving mechanism drives the installation seat 4 to move towards the direction close to the lower clamping mold 2 to realize that the forming mold 7 retracts the other end of the vent pipe 3, after the processing is completed, the upper clamping bun is opened, the lining shaft 6 is taken out, the vent pipe 3 is taken out together in the process of taking out the lining shaft 6, the vent pipe 3 is fixed from the lining shaft 6 by pushing and pressing the material binding sleeve, and the processed vent pipe is as shown in fig. 6.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (9)

1. The utility model provides a breather pipe throat forming die, includes and presss from both sides mould and lower clamp mould, it has lower clamping groove to press from both sides the mould to open down, it has last clamping groove to press from both sides the mould to open to go up, it is located to press from both sides the mould top down just go up the clamping groove with lower clamping groove forms fixed chamber, and fixed chamber is cylindrical and fixed chamber is used for holding the breather pipe, its characterized in that still includes mount pad, inside lining axle and moulded die, wherein:

the lining shaft is slidably arranged in the lower clamping groove, is coaxial with the fixed cavity and extends into a through hole of a vent pipe in the fixed cavity;

the forming die is installed on the installation seat, the forming die is opposite to and coaxial with the fixed cavity, and the distance between the installation seat and the lower clamping die is adjustable.

2. The vent pipe necking die of claim 1, wherein an end positioning member is further provided in the fixing cavity, and the end positioning member is used for positioning an end of the vent pipe away from the forming die.

3. The vent tube necking die of claim 2, wherein the end positioning member has a sliding hole, and the lining shaft is slidably mounted in the sliding hole.

4. The vent pipe necking forming die of claim 3, wherein a clamping groove is formed in the lower clamping groove, and the end positioning piece is detachably mounted in the clamping groove.

5. The snorkel necking die of claim 2, wherein the end retainer is annular.

6. The vent tube necking die of claim 5, wherein the outer sidewall of the end spacer is coaxial with the inner sidewall of the end spacer.

7. The vent pipe necking die of any one of claims 1 to 6, wherein the die is detachably mounted on the mounting base.

8. The snorkel necking forming die of claim 1, wherein a connecting block is fixed to an end of the mounting base away from the forming die.

9. The snorkel necking die of claim 1, wherein the axis of the fixed cavity is horizontal.

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