CN221312349U

CN221312349U - Bushing forming die

Info

Publication number: CN221312349U
Application number: CN202322902802.9U
Authority: CN
Inventors: 郭延明; 慈晓健; 吴水根
Original assignee: Ningguo Zhongding Precision Technology Co ltd
Current assignee: Ningguo Zhongding Precision Technology Co ltd
Priority date: 2023-10-28
Filing date: 2023-10-28
Publication date: 2024-07-12
Anticipated expiration: 2033-10-28

Abstract

The utility model relates to the technical field of dies and discloses a bushing forming die which is mainly used for processing a metal pipe-shaped bushing product with a double-end-surface special-shaped structure, and particularly comprises a main die shell and a male die fixing seat, wherein a punching rod and a main die are arranged in the main die shell; the bottom of the male die fixing seat is provided with a male die and is arranged above the main die shell, and the bottom end of the male die is inserted into the forming die cavity through the downward movement of the male die fixing seat and the male die, so that a workpiece in the forming die cavity is pressed and formed. The special-shaped double-end-face forming machine is simple in integral structure and convenient to operate, can be used for forming the double-end-face special-shaped structure of a workpiece at one time, improves machining efficiency, saves time and labor, does not need to adopt a special milling machine tool or a carving machine, reduces equipment use cost, and is beneficial to enterprise production benefits.

Description

Bushing forming die

Technical Field

The utility model relates to the technical field of dies, in particular to a bushing forming die.

Background

In moving parts, parts wear due to long-term friction, and parts must be replaced when the gap between the shaft and the hole wears to a certain extent, so that the designer can choose a material with lower hardness and better wear resistance as a bushing in design, so that the wear of the shaft and the seat can be reduced, and when the bushing wears to a certain extent, the replacement can be performed, so that the cost for replacing the shaft or the seat can be saved.

The bushing products in the automobile parts mostly have a double-end-face special-shaped structure, for example, the bushing products shown in fig. 2 are mainly pipe fittings, one end face of each pipe fitting has a sparse tooth shape, and the other end face of each pipe fitting has an inner groove and an outer convex structure.

At present, when the bushing product of fig. 2 is processed, the processing is performed by a special milling machine tool or an engraving machine, but the following disadvantages exist:

1. The special-shaped structure of the two end surfaces of the pipe fitting is asymmetric and is not easy to process;

2. the special milling machine tool or engraving machine is adopted to process the product, so that the time consumption is long, the efficiency is low, and the equipment use cost is high.

Disclosure of utility model

In order to solve the technical problems in the background technology, the utility model provides a bushing forming die.

The utility model provides a bushing forming die which is mainly used for processing a metal tubular bushing product with a double-end-surface special-shaped structure, and particularly comprises a main die shell and a male die fixing seat, wherein a punching rod and a main die are arranged in the main die shell;

The bottom of the male die fixing seat is provided with a male die and is arranged above the main die shell, and the bottom end of the male die is inserted into the forming die cavity through the downward movement of the male die fixing seat and the male die, so that a workpiece in the forming die cavity is pressed and formed.

As a further optimized scheme of the utility model, the bottom of the inner cavity of the main die shell is provided with an elastic piece, the main die is elastically connected with the bottom of the inner cavity of the main die shell through the elastic piece, and in the process of pressing a workpiece by the male die, the male die drives the main die to move downwards and elastically extrude the elastic piece.

As a further optimized scheme of the utility model, limit grooves are formed in the tops of two sides of the inner cavity of the main die, and in the process of pressing a workpiece by the male die, the top end of the workpiece is plastically deformed and filled into the limit grooves to finish top end forming.

As a further optimized scheme of the utility model, the top end surface of the punch rod is provided with a groove matched with the toothed pattern at the bottom end of the bushing product, and in the process of pressing the workpiece by the male die, the bottom end of the workpiece is contacted with the top end of the punch rod, and the bottom end of the workpiece is plastically deformed to form the toothed pattern.

As a further optimized scheme of the utility model, the axis of the punching rod is mutually coincident with the axis of the main mould shell.

As a further optimized scheme of the utility model, the push pipe is movably sleeved on the punch rod, the push pipe can be lifted along the outer wall of the punch rod, and the top end of the push pipe can be slidably inserted into the main die so as to eject and strip a workpiece after being pressed in the forming die cavity.

As a further optimized scheme of the utility model, the bottom of the main mould shell is movably provided with the ejector rod, the ejector rod moves upwards to drive the ejector tube to slide upwards, and the workpiece in the molding mould cavity is ejected.

As a further optimized scheme of the utility model, the bottom end of the push tube is provided with the movable seat, the movable seat is sleeved on the outer wall of the bottom end of the punching rod in a sliding way, and the top end of the ejector rod is movably extended into the main die shell and is connected with the bottom surface of the movable seat.

As a further optimized scheme of the utility model, the main mould shell is provided with a radial limiting device for the main mould.

The bushing forming die provided by the utility model has the following beneficial effects:

When the die is used, a workpiece is placed in a forming die cavity, the bottom end of the workpiece is contacted with the top end of a punch rod, the punch is driven to move downwards through a punch fixing seat, so that the bottom end of the punch is inserted into the forming die cavity, the outer wall of the punch is inserted into a limit groove on a main die, the punch drives the main die to move downwards along the inner wall of the main die shell, the bottom end of the punch is contacted with the top end of the workpiece along with the continuous downward movement of the punch, and the upper end and the lower end of the workpiece can be pressed and formed through the punch and the punch rod through continuous pressing; the special-shaped double-end-face forming machine has the advantages that the whole structure is simple, the operation is convenient, the double-end-face special-shaped double-end-face forming machine can be used for forming double-end-face special-shaped double-end-face forming machine is capable of forming double-end-face special-shaped double-face forming work pieces in one step, machining efficiency is improved, time and labor are saved, a special milling machine or a carving machine is not needed, equipment use cost is reduced, and production benefits of enterprises are facilitated.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of the bushing product of the present utility model.

Description of the drawings: 1. a main mould shell; 2. punching a rod; 3. a master mold; 4. a male die fixing seat; 5. a male die; 6. a limit groove; 7. an elastic member; 8. pushing the tube; 9. a push rod; 10. a movable seat; 11. an upper cushion block; 12. a lower cushion block; 13 locating pins.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

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

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1, a bushing forming mold is mainly used for processing a metal tubular bushing product with a double-end-surface special-shaped structure, and specifically comprises a main mold shell 1 and a male mold fixing seat 4, wherein a punching rod 2 and a main mold 3 are installed in the main mold shell 1, the main mold 3 is movably sleeved on the top of an inner cavity of the main mold shell 1, the height of the main mold 3 is adjustable, one end of the punching rod 2 is fixed at the bottom of the inner cavity of the main mold shell 1, and the other end of the punching rod 2 extends into the main mold 3 to form a forming mold cavity;

the bottom of the male die fixing seat 4 is provided with a male die 5 and is arranged above the main die shell 1, and the bottom end of the male die 5 is inserted into a forming die cavity through downward movement of the male die fixing seat 4 and the male die 5 to press and form a workpiece in the forming die cavity;

The main die shell 1 is provided with a cylindrical cavity, the top of the main die shell 1 is provided with an opening, the main die 3 is hollow and cylindrical, the main die 3 is sleeved at the top of the inner cavity of the main die shell 1 in a sliding manner, and the main die 3 can slide up and down along the inner wall of the main die shell 1 under the action of external force;

The tops of the two sides of the inner cavity of the main die 3 are respectively provided with a limit groove 6, the limit grooves 6 on the two sides are combined with the cavity above the punching rod 2, so that a final molding cavity is formed, and in the process of pressing a workpiece by the punch 5, the top end of the workpiece is plastically deformed and filled into the limit grooves 6 to finish top end molding;

The axis of the punching rod 2 is mutually overlapped with the axis of the main die shell 1, and the top end of the punching rod 2 extends to the middle part of the cavity of the main die 3, so that the workpiece is convenient to press and form and the main die 3 moves downwards;

The outer diameter of the punch rod 2 is smaller than the outer diameter of the workpiece;

Specifically, an elastic piece 7 is arranged at the bottom of the inner cavity of the main die shell 1, the main die 3 is elastically connected with the bottom of the inner cavity of the main die shell 1 through the elastic piece 7, and in the process that the punch 5 presses a workpiece, the punch 5 drives the main die 3 to move downwards and elastically extrudes the elastic piece 7;

the bottom end of the male die 5 is provided with a tool bit matched with the top end of the bushing product, when the tool bit of the male die 5 is contacted with the top end of a workpiece, the top end of the workpiece is subjected to plastic deformation along with continuous pressing, two sides of the top end of the workpiece are outwards protruded to gradually fill the limit groove 6, in the filling process, the main die 3 is pressed and moves downwards, and the elastic piece 7 is elastically deformed to buffer, so that the forming stability of the workpiece can be improved;

Further, the elastic piece 7 is preferably a spring, the spring is sleeved on the periphery of the punching rod 2, the upper end of the spring is fixedly connected with the lower surface of the main die 3, the lower end of the spring is fixedly connected with the bottom of the inner cavity of the main die shell 1, when the main die 3 moves downwards to extrude the spring, the spring is in a compressed state, after the workpiece is pressed, the punch fixing seat 4 drives the punch 5 to move upwards and to be pulled out of the forming die cavity, the spring is recovered to deform, and the main die 3 moves upwards to reset, so that the workpiece can be driven to move upwards to play a role in assisting in demolding;

Specifically, a push tube 8 is movably sleeved on the punch rod 2, the push tube 8 can be lifted along the outer wall of the punch rod 2, and the top end of the push tube 8 can be slidably inserted into the main die 3 so as to eject and strip a workpiece after being pressed in a forming die cavity;

Further, a push rod 9 is movably arranged at the bottom of the main die shell 1, the push rod 9 moves upwards to drive the push pipe 8 to slide upwards, and the workpiece in the molding die cavity is ejected;

further, a movable seat 10 is arranged at the bottom end of the push tube 8, the movable seat 10 is sleeved on the outer wall of the bottom end of the punch rod 2 in a sliding manner, and the top end of the ejector rod 9 extends into the main die shell 1 in a movable manner and is connected with the bottom surface of the movable seat 10;

Further, an upper cushion block 11 is installed at the bottom of the inner cavity of the main mold shell 1, a lower cushion block 12 is installed at the bottom of the upper cushion block 11, the lower end face of the movable seat 10 is pressed on the upper surface of the upper cushion block 11, the bottom end of the elastic piece 7 is fixedly connected with the upper surface of the upper cushion block 11, through holes matched with the ejector rods 9 are formed in the upper cushion block 11 and the lower cushion block 12, the upper end and the lower end of each through hole are respectively provided with an opening, one end of each ejector rod 9 is connected with an external driving piece, and the other end of each ejector rod 9 is movably inserted into each through hole and is fixedly connected with the lower end face of the movable seat 10; the driving piece can be a cylinder, an oil cylinder or a motor combined structure in the prior art;

After the workpiece is pressed and formed, the male die 5 is pulled out of the forming die cavity, the main die 3 drives the formed workpiece to move upwards, the workpiece is positioned at the top of the inner cavity of the main die 3, at the moment, the driving piece drives the ejector rod 9 to move upwards, so that the ejector rod 9 drives the movable seat 10 and the push tube 8 to move upwards, the top end of the push tube 8 moves upwards along the outer wall of the punch rod 2 and is inserted into the inner cavity of the main die 3, and along with the continuous upward movement of the push tube 8, the upper end face of the push tube 8 contacts with the lower end face of the workpiece, so that the workpiece is ejected upwards to the outside of the main die 3, and the one-step forming and demolding operation of the workpiece can be completed;

specifically, the main mold shell 1 is also provided with a radial limit 13 for the main mold 3;

Further, 13 is arranged on the inner wall of one side of the top end of the main mould shell 1, a clamping groove matched with 13 is formed in the outer wall of the top end of the main mould 3, when the main mould 3 is in an initial state, the upper end face of the main mould 3 is flush with the upper end face of the main mould shell 1, and the clamping groove is matched and clamped with 13, so that the main mould 3 can be prevented from radial rotation, and meanwhile, the up-and-down movement of the main mould 3 is not influenced;

It should be noted that, the inner cavity of the main mold shell 1 may be a polygonal inner cavity, and the outer shape of the main mold 3 is adapted to the polygonal inner cavity, so as to prevent the main mold 3 from radial rotation;

In summary, when the bushing forming die provided by the utility model is used, a workpiece is placed in a forming die cavity, the bottom end of the workpiece is contacted with the top end of a punch rod 2, the punch 5 is driven to move downwards through a punch fixing seat 4, so that the bottom end of the punch 5 is inserted into the forming die cavity, the outer wall 13 of the punch 5 is spliced with a limit groove 6 on a main die 3, the punch 5 drives the main die 3 to move downwards along the inner wall of the main die 1, and along with the continuous downward movement of the punch 5, the bottom end of the punch 5 is contacted with the top end of the workpiece, and the upper end and the lower end of the workpiece can be formed by continuously pressing the punch 5 and the punch rod 2; the special-shaped double-end-face forming machine has the advantages that the whole structure is simple, the operation is convenient, the double-end-face special-shaped double-end-face forming machine can be used for forming double-end-face special-shaped double-end-face forming machine is capable of forming double-end-face special-shaped double-face forming work pieces in one step, machining efficiency is improved, time and labor are saved, a special milling machine or a carving machine is not needed, equipment use cost is reduced, and production benefits of enterprises are facilitated.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a bush forming die, includes main mould shell (1) and terrace die fixing base (4), its characterized in that:

A punching rod (2) and a main die (3) are arranged in the main die shell (1), the main die (3) is movably sleeved at the top of the inner cavity of the main die shell (1) and is adjustable in height, one end of the punching rod (2) is fixed at the bottom of the inner cavity of the main die shell (1), and the other end of the punching rod (2) extends into the main die (3) to form a molding die cavity;

the bottom of the male die fixing seat (4) is provided with a male die (5) and is arranged above the main die shell (1), and the bottom end of the male die (5) is inserted into a forming die cavity through downward movement of the male die fixing seat (4) and the male die (5) to press and form a workpiece in the forming die cavity.

2. The bushing forming die according to claim 1, wherein an elastic piece (7) is arranged at the bottom of the inner cavity of the main die shell (1), the main die (3) is elastically connected with the bottom of the inner cavity of the main die shell (1) through the elastic piece (7), and in the process that the punch (5) presses a workpiece, the punch (5) drives the main die (3) to move downwards and elastically extrude the elastic piece (7).

3. The bushing forming die according to claim 1, wherein limiting grooves (6) are formed in the tops of two sides of the inner cavity of the main die (3), and in the process of pressing a workpiece by the male die (5), the top end of the workpiece is plastically deformed and filled into the limiting grooves (6) to complete top end forming.

4. A bushing forming die according to claim 1, wherein the top end surface of the punch (2) is provided with grooves matched with the dentate pattern of the bottom end of the bushing product, and the bottom end of the workpiece is contacted with the top end of the punch (2) in the process of pressing the workpiece by the male die (5), and is plastically deformed to form the dentate pattern.

5. A bushing forming die according to claim 1, characterized in that the axis of the punch (2) coincides with the axis of the main die shell (1).

6. The bushing forming die according to claim 1, wherein a push tube (8) is movably sleeved on the punch (2), the push tube (8) can be lifted along the outer wall of the punch (2), and the top end of the push tube (8) can be slidably inserted into the main die (3) so as to eject and strip a workpiece after being pressed in the forming die cavity.

7. A bushing forming die according to claim 5, wherein a push rod (9) is movably mounted at the bottom of the main die housing (1), and the push tube (8) is driven to slide upwards by the push rod (9) to eject the workpiece in the forming die cavity.

8. The bushing forming die according to claim 6, wherein a movable seat (10) is mounted at the bottom end of the push tube (8), the movable seat (10) is slidably sleeved on the outer wall of the bottom end of the punch rod (2), and the top end of the ejector rod (9) movably extends into the main die shell (1) and is connected with the bottom surface of the movable seat (10).

9. A bushing forming die according to claim 1, characterized in that the main die housing (1) is provided with a radial limit (13) for the main die (3).