CN213317046U

CN213317046U - Pipe flanging mechanism

Info

Publication number: CN213317046U
Application number: CN202020616683.4U
Authority: CN
Inventors: 郭晨晨; 林志龙
Original assignee: Suzhou Weijun Precision Molds Co ltd
Current assignee: Suzhou Weijun Precision Molds Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-06-01
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a circular tube flanging mechanism, which comprises a first die component and a second die component, the first mold assembly is provided with a first base, a first bottom plate and a first mold core fixed on the first bottom plate, the second mold assembly has a second base and a second base plate and a second mold core fixed to the second base plate, the central axis of the first mold core and the central axis of the second mold core are positioned on the same straight line, a floating plate is arranged between the first bottom plate and the second bottom plate, the second mold core penetrates through the floating plate, the upper side and the lower side of the floating plate are respectively connected with a first elastic piece and a second elastic piece, the first mold core is provided with a flanging forming groove corresponding to the second mold core, the outer edge of the flanging forming groove is provided with a first circular arc part, and the bottom of the flanging forming groove is provided with a second circular arc part extending along the circumferential direction of the flanging forming groove. The utility model discloses it is simple and convenient, can improve work efficiency to the one-time turn-ups shaping of pipe.

Description

Pipe flanging mechanism

Technical Field

The utility model relates to a mould field, specificly a pipe flanging mechanism.

Background

The flanging forming process is a conventional process method in the die industry, the flanging comprises an outward flanging mode and an inward flanging mode, in the prior art, when the edge of a workpiece is subjected to outward flanging, the outward flanging and the inward flanging can be directly performed through a stamping die by extrusion forming, but when the edge of the workpiece is subjected to inward flanging, the requirement of the inward flanging on the forming process is high, particularly when a round pipe fitting is required, the flanging is required to be a round flanging, the complex die design is required, the manufacturing cost is high, the damage is easy, and the generation efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect among the prior art, the embodiment of the utility model provides a pipe flanging mechanism can turn-ups shaping once, improves work efficiency.

The embodiment of the application discloses: a round tube flanging mechanism comprises a first die component and a second die component, wherein the first die component is provided with a first base, a first bottom plate and a first die core fixed on the first bottom plate, the second mold assembly has a second base and a second base plate and a second mold core fixed to the second base plate, the central axis of the first mold core and the central axis of the second mold core are positioned on the same straight line, a floating plate is arranged between the first bottom plate and the second bottom plate, the second mold core penetrates through the floating plate, the upper side and the lower side of the floating plate are respectively connected with a first elastic piece and a second elastic piece, the first mold core is provided with a flanging forming groove corresponding to the second mold core, the outer edge of the flanging forming groove is provided with a first circular arc part, and the bottom of the flanging forming groove is provided with a second circular arc part extending along the circumferential direction of the flanging forming groove.

Preferably, the second mold core is a convex mold core for sleeving a round pipe, and the first mold core is a concave mold core; or the first mold core is a convex mold core for sleeving the round pipe, and the second mold core is a concave mold core.

Preferably, the first elastic member is connected to the floating plate via a push rod, one end of the first elastic member is connected to the first base, the other end of the first elastic member is connected to the push rod, a part of the push rod extends into the floating plate from the upper end of the floating plate, the second elastic member abuts against the lower end of the floating plate, and the floating plate moves under the elastic action of the first elastic member and the second elastic member.

Preferably, the floating plate includes a first floating plate and a second floating plate, the first floating plate is fixedly connected to the upper side of the second floating plate, the push rod penetrates through the first floating plate and abuts against the second floating plate, and the second elastic member abuts against the lower side of the second floating plate.

Preferably, the circular tube is sleeved on the second mold core and is positioned in the first floating plate.

Preferably, the circular tube flanging mechanism further comprises an inner die guide post, and the inner die guide post extends from the second bottom plate to the first bottom plate and penetrates through the first floating plate and the second floating plate.

Preferably, the first die assembly is provided with a first guide assembly, the first guide assembly is installed between the first base and the first bottom plate, and the first guide assembly is located on the other side of the first elastic piece; the second die assembly is provided with a second guide assembly, the second guide assembly is installed between the second floating plate and the second bottom plate, and the second guide assembly is located on the other side of the second elastic piece.

Preferably, the inner diameter of the flanging forming groove is equal to the outer diameter of the round pipe.

Preferably, the circle center of the second arc part is located inside the flanging forming groove.

The utility model has the advantages as follows: the utility model has simple structure and convenient operation, the cut round pipe is sleeved on the second mold core through the first mold core and the second mold core which are correspondingly arranged, when the first mold assembly and the second mold assembly are used for mold closing, the round pipe sleeved on the second mold core is propped against the flanging molding groove of the first mold core and is extruded along the inner wall of the flanging molding groove under the action of pressure, meanwhile, the extruded part of the round pipe is gradually and uniformly folded towards the inner part of the round pipe under the arc action of the second arc part, the second mold core moves to the extruded part of the round pipe along the inner part of the round pipe and extrudes the extruded part of the round pipe to form a regular inward flanging at the bottom of the flanging forming groove, the floating plate is controlled to float up and down under the elastic action of the first elastic piece and the second elastic piece, so that the extrusion force of the circular tube is effectively relieved, and the extrusion part of the circular tube is prevented from being damaged due to continuous extrusion force.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

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 schematic structural diagram in an embodiment of the present invention;

fig. 2 is a partially enlarged view of fig. 1.

In the figure: 100. a circular tube; 11. a first base; 12. a first base plate; 13. a first mold core; 21. a second base; 22. a second base plate; 23. a second mold core; 3. a floating plate; 31. a first floating plate; 32. second floating; 41. a first elastic member; 42. A first elastic member; 5. a flanging forming groove; 51. a first arc portion; 52. a second arc portion; 6. a push rod; 7. an inner guide post of the mold; 81. a first guide assembly; 82. a second guide assembly.

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 work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, in a preferred embodiment of the present invention, a round tube flanging mechanism comprises a first mold assembly and a second mold assembly, wherein the first mold assembly has a first base 11 and a first bottom plate 12, and a first mold core 13 fixed on the first bottom plate 12, the second mold assembly has a second base 21 and a second bottom plate 22, and a second mold core 23 fixed on the second bottom plate 22, a central axis of the first mold core 13 and a central axis of the second mold core 23 are located on the same straight line, a floating plate 3 is disposed between the first bottom plate 12 and the second bottom plate 22, the second mold core 23 penetrates through the floating plate 3, a first elastic member 41 and a second elastic member 42 are respectively connected to upper and lower sides of the floating plate 3, the first mold core 13 is provided with a flanging forming groove 5 corresponding to the second mold core 23, an outer edge of the flanging forming groove 5 has a first portion 51, the bottom of the flanging forming groove 5 is provided with a second arc part 52 extending along the circumferential direction of the flanging forming groove 5, the circle center of the second arc part 52 is positioned inside the flanging forming groove 5, the second mold core 23 is a male mold core for sleeving the round pipe 100, and the first mold core 13 is a female mold core.

As shown in fig. 1, in this embodiment, the first elastic member 41 is connected to the floating plate 3 through a push rod 6, one end of the first elastic member 41 is connected to the first base 11, the other end of the first elastic member is connected to the push rod 6, a portion of the push rod 6 extends into the floating plate 3 from the upper end of the floating plate 3, the second elastic member 42 abuts against the lower end of the floating plate 3, and the floating plate 3 moves under the elastic action of the first elastic member 41 and the second elastic member 42, so that the second mold core 23 can push the circular pipe 100 into the flanging molding groove 5 of the first mold core 13, and at the same time, the second mold core 23 can be driven to extrude the circular pipe 100 to cooperate with the first mold core 13, so as to perform one-step extrusion molding conveniently and quickly.

Specifically, the floating plate 3 comprises a first floating plate 31 and a second floating plate 32, the first floating plate 31 is fixedly connected above the second floating plate 32, the push rod 6 penetrates through the first floating plate 31 and abuts against the second floating plate 32, the second elastic piece 42 abuts against the lower side of the second floating plate 32, the circular tube 100 is sleeved on the second mold core 23 and is located in the first floating plate 31, and the inner diameter of the flanging molding groove 5 is equal to the outer diameter of the circular tube 100, so that the circular tube 100 sleeved on the second mold core 23 can move along the inner wall of the flanging molding groove 5 during mold closing, and extrusion molding is further achieved.

The circular tube flanging mechanism further comprises an inner die guide post 7, the inner die guide post 7 extends from the second bottom plate 22 to the first bottom plate 12 and penetrates through the first floating plate 31 and the second floating plate 32, the first die assembly is provided with a first guide assembly 81, the first guide assembly 81 is installed between the first base 11 and the first bottom plate 12, and the first guide assembly 81 is located on the other side of the first elastic element 41; the second die assembly is provided with a second guide assembly 82, the second guide assembly 82 is installed between the second floating plate 32 and the second base plate 22, and the second guide assembly 81 is located at the other side of the second elastic member 42, so that the stability of the mechanism is improved.

When the device is used, the cut round pipe 100 is directly sleeved on the second mold core 23, when the first mold assembly and the second mold assembly are closed, the round pipe 100 sleeved on the second mold core 23 abuts against the flanging forming groove 5 of the first mold core 13 and is extruded along the inner wall of the flanging forming groove 5 under the action of pressure, meanwhile, the extruded part of the round pipe 100 gradually and uniformly draws towards the inner part of the round pipe under the arc action of the second arc part 52, the second mold core 23 moves to the extruded part of the round pipe along the inner wall of the round pipe 100 and extrudes the extruded part of the round pipe 100 to be a regular inward flanging at the bottom of the flanging forming groove 5, the floating plate 3 is controlled to float up and down under the elastic action of the first elastic part 41 and the second elastic part 42, the extrusion force applied to the round pipe 100 is effectively relieved, and the damage of the extruded part of the round pipe 100 caused by continuous extrusion force is avoided, meanwhile, when the second mold core 23 sends the circular tube 100 to the first mold core 13, the second mold core 23 can continuously move, one-step flanging forming is achieved, and efficiency is high.

In another embodiment, the first mold core 13 is a male mold core for receiving the circular tube 100, and the second mold core 23 is a female mold core.

The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A circular tube flanging mechanism is characterized by comprising a first die component and a second die component, the first mold assembly is provided with a first base, a first bottom plate and a first mold core fixed on the first bottom plate, the second mold assembly has a second base and a second base plate and a second mold core fixed to the second base plate, the central axis of the first mold core and the central axis of the second mold core are positioned on the same straight line, a floating plate is arranged between the first bottom plate and the second bottom plate, the second mold core penetrates through the floating plate, the upper side and the lower side of the floating plate are respectively connected with a first elastic piece and a second elastic piece, the first mold core is provided with a flanging forming groove corresponding to the second mold core, the outer edge of the flanging forming groove is provided with a first circular arc part, and the bottom of the flanging forming groove is provided with a second circular arc part extending along the circumferential direction of the flanging forming groove.

2. The round tube flanging mechanism according to claim 1, wherein the second mold core is a male mold core for sleeving a round tube, and the first mold core is a female mold core; or the first mold core is a convex mold core for sleeving the round pipe, and the second mold core is a concave mold core.

3. The round tube flanging mechanism according to claim 2, wherein the first elastic member is connected with the floating plate through a push rod, one end of the first elastic member is connected to the first base, the other end of the first elastic member is connected to the push rod, a part of the push rod extends into the floating plate from the upper end of the floating plate, and the second elastic member abuts against the lower end of the floating plate.

4. The round tube flanging mechanism according to claim 3, wherein the floating plates comprise a first floating plate and a second floating plate, the first floating plate is fixedly connected above the second floating plate, the push rod penetrates through the first floating plate and abuts against the second floating plate, and the second elastic member abuts against the lower side of the second floating plate.

5. The round tube flanging mechanism according to claim 4, wherein the round tube is sleeved on the second mold core and is positioned in the first floating plate.

6. The round tube flanging mechanism according to claim 4, further comprising an in-mold guide post extending from the second bottom plate to the first bottom plate and penetrating the first floating plate and the second floating plate.

7. The round tube flanging mechanism according to claim 4, wherein the first die assembly is provided with a first guide assembly, the first guide assembly is installed between the first base and the first bottom plate, and the first guide assembly is located on the other side of the first elastic member; the second die assembly is provided with a second guide assembly, the second guide assembly is installed between the second floating plate and the second bottom plate, and the second guide assembly is located on the other side of the second elastic piece.

8. The round tube flanging mechanism according to claim 1, wherein the inner diameter of the flanging forming groove is equal to the outer diameter of the round tube.

9. The circular tube flanging mechanism according to claim 1, wherein the center of the second arc portion is located inside the flanging forming groove.