CN212598359U

CN212598359U - Metal tube and metal sheet extrusion forming die

Info

Publication number: CN212598359U
Application number: CN202021839654.0U
Authority: CN
Inventors: 张猛; 赵伟华; 金东灿
Original assignee: Cangzhou Changzhenbaohang Auto Parts Co ltd
Current assignee: Cangzhou Changzhenbaohang Auto Parts Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-02-26
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a metal tube and sheet metal extrusion forming die, which belongs to the field of metal processing, and comprises a fixed die plate, a first movable die plate, a second movable die plate and an extrusion device, wherein the fixed die plate is provided with a fixed extrusion cavity; the utility model discloses a first extrusion forms a protrusion of extrusion chamber surely, locates the sheetmetal and carries out the extrusion for the second time on this lug, under the effect of pressure, extrudees the connecting hole of sheetmetal and the clearance of tubular metal resonator with the extrusion part of tubular metal resonator from the both sides of sheetmetal for sheetmetal and tubular metal resonator fixed connection are in the same place.

Description

Metal tube and metal sheet extrusion forming die

Technical Field

The utility model belongs to the technical field of metal processing, in particular to tubular metal resonator and sheetmetal extrusion mould.

Background

With the light weight of automobiles, most of the existing automobile parts are replaced by high-strength materials with thinner size and higher strength. The existing extrusion process can replace a welding process of thin metal to realize connection between metals, but the extrusion process often causes looseness between metal pieces due to vibration and the like, so that the function of a product is disabled. For example, the height adjusting device of the automobile seat can cause the loose of the extruded parts and the functional failure of the product due to the mutual collision or vibration during the transportation process.

SUMMERY OF THE UTILITY MODEL

To connecting between the metalwork because the not hard up problem appears in the vibrations reason, the utility model provides a tubular metal resonator and sheetmetal extrusion mould.

The utility model discloses a metal tube and sheet metal extrusion forming die, which comprises a fixed die plate, a first movable die plate, a second movable die plate and an extrusion device, wherein the fixed die plate is provided with a fixed extrusion cavity;

the extrusion device pushes the first movable die plate or the second movable die plate to move and contact with the fixed die plate, so that the fixed extrusion cavity is in contact with the first movable extrusion cavity to form a first cavity or the second movable extrusion cavity to form a second cavity.

Preferably, the fixed die plate is provided with a containing cavity for fixing the metal tube, the containing cavity penetrates through two sides of the fixed die plate, and the extruding device and the first movable die plate or the second movable die plate are symmetrically arranged at two ends of the fixed die plate.

Preferably, the containing cavity, the fixed extrusion cavity, the first movable extrusion cavity and the second movable extrusion cavity are cylindrical cavities, and the containing cavity, the fixed extrusion cavity and the first movable extrusion cavity or the second movable extrusion cavity are coaxially arranged.

Preferably, the diameter of the fixed extrusion cavity is equal to the diameter of the first movable extrusion cavity, and the diameter of the second movable extrusion cavity is greater than the diameter of the accommodating cavity, and the fixed extrusion cavity is communicated with the accommodating cavity.

Preferably, a cylinder which is in butt joint with the first movable die plate or the second movable die plate is arranged on the fixed die plate, and the fixed extrusion cavity is arranged on the cylinder.

Preferably, the depth of the fixed extrusion cavity is less than 2 times of the wall thickness of the metal pipe; the depth of the fixed extrusion cavity and the depth of the first movable extrusion cavity are more than 2 times of the wall thickness of the metal pipe, and the depth of the first movable extrusion cavity is less than the wall thickness of the metal pipe.

Preferably, the anti-rotation device is arranged on one side of the fixed template and comprises a fixed block, a fixed column and a driver, an open slot is formed in the fixed block, and the fixed column is arranged at the output end of the driver; wherein, the fixed column is positioned at one side opposite to the open slot.

Preferably, the anti-rotation device further comprises a base and a moving seat arranged on the base in a sliding mode, the anti-rotation device is arranged on the moving seat, the fixed die plate is arranged on the base, and the fixed die plate is located on one side of the anti-rotation device.

Preferably, both ends of the metal sheet are provided with connecting holes, and a plurality of tooth blocks are arranged on the connecting holes contacting with the metal sheet around the circle center of the connecting holes.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a first extrusion forms a protrusion of extrusion chamber surely, locates the sheetmetal and carries out the extrusion for the second time on this lug, under the effect of pressure, extrudees the connecting hole of sheetmetal and the clearance of tubular metal resonator with the extrusion part of tubular metal resonator from the both sides of sheetmetal for sheetmetal and tubular metal resonator fixed connection are in the same place.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the fixed die plate of the present invention;

fig. 3 is a schematic view of the rotation prevention structure of the present invention.

Reference numerals

1. Fixing a template; 2. the first movable template or the second movable template; 3. a metal tube; 4. a metal sheet; 5. an anti-rotation device; 6. a base; 7. a movable seat; 11. fixing an extrusion cavity; 12. an accommodating chamber; 13. a cylinder; 21. the first movable extrusion cavity or the second movable extrusion cavity; 51. a fixed block; 52. fixing a column; 53. a driver; 61. a chute; 62. a slide block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, 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 efforts 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 should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the forming mold includes a fixed mold plate 1, a first movable mold plate 2, a second movable mold plate 2 and an extrusion device, a fixed extrusion cavity 11 is arranged on the fixed mold plate 1, a first movable extrusion cavity 21 is arranged on the first movable mold plate 2, a second movable extrusion cavity 21 is arranged on the second movable mold plate 2, the fixed extrusion cavity 11 contacts with the first movable extrusion cavity 21 to form a mold cavity, the first movable mold plate 2 and the second movable mold plate 2 are only that the depths of the first movable extrusion cavity 21 and the second movable extrusion cavity 21 are different, and the other depths are completely the same, both are connected with the extrusion device, the extrusion device is a conventional driving device, and therefore, the extrusion device is not drawn in the drawing.

Referring to fig. 1 and 2, an accommodating cavity 12 for fixing a metal pipe 3 is formed in a fixed die plate 1, the accommodating cavity 12 penetrates through two sides of the fixed die plate 1, and an extrusion device and a first movable die plate 2 or a second movable die plate 2 are symmetrically arranged at two ends of the fixed die plate 1; the application is not limited to the metal sheet 4 being connected to both ends of the metal tube 3, and if the metal tube 3 is connected to the metal sheet 4 only by one end, the accommodating cavity 12 is set to be in the shape of only one opening.

Further, the accommodating cavity 12, the fixed extrusion cavity 11, the first movable extrusion cavity 21 and the second movable extrusion cavity 21 are cylindrical cavities, and the accommodating cavity 12, the fixed extrusion cavity 11 and the first movable extrusion cavity 21 or the second movable extrusion cavity 21 are coaxially arranged. The diameter of the fixed extrusion cavity 11 is equal to the diameter of the first movable extrusion cavity 21 and equal to the diameter of the second movable extrusion cavity 21 is larger than the diameter of the accommodating cavity 12, and the fixed extrusion cavity 11 is communicated with the accommodating cavity 12.

Still further, a cylinder 13 which is in butt joint with the first movable mould plate 2 or the second movable mould plate 2 is arranged on the fixed mould plate 1, and the fixed extrusion cavity 11 is arranged on the cylinder 13. The surface of the first movable template 2 or the second movable template 2, which is contacted with the fixed template 1, is consistent with the surface of the cylinder 13 in size and diameter.

Referring to fig. 1 and 3, the forming mold further includes an anti-rotation device 5 disposed at one side of the fixed mold plate 1, the anti-rotation device 5 includes a fixed block 51, a fixed column 52 and a driver 53, the fixed block 51 is provided with an open slot, and the fixed column 52 is disposed at an output end of the driver 53; wherein the fixed post 52 is located on the opposite side of the open slot. The actuator 53 may be selected as a cylinder or a motor.

Further, forming die still includes base 6 and the removal seat 7 of slide on locating base 6, and anti-rotation device 5 locates on removing seat 7, and fixed die plate 1 locates on base 6, and fixed die plate 1 is located anti-rotation device 5 one side.

Wherein, a plurality of spouts 61 have been seted up on base 6, remove 7 bottom surfaces rigid couplings of seat and have a plurality of sliders 62, and slider 62 and spout 61 phase-match, slider 62 through bolt and remove 7 fixed connection for remove the seat 7 and can slide on base 6, be used for controlling the distance of anti-rotation device 5 to fixed die plate 1, and then can adjust the angle that sheetmetal 4 and tubular metal resonator 3 are connected.

In this embodiment, the connecting holes are formed at both ends of the metal sheet 4, and a plurality of tooth blocks are arranged on the connecting holes contacting the metal tube 3 around the center of the connecting holes. Through being equipped with a plurality of tooth pieces in the connecting hole at sheetmetal 4, increased sheetmetal 4 and tubular metal resonator 3's area of contact for sheetmetal 4 and tubular metal resonator 3's connection is more firm, can not just cause the not hard up of sheetmetal 4 because of vibrations.

In this embodiment, a method for extrusion molding a metal tube 3 and a metal sheet 4, which completes the extrusion molding step through the above-mentioned molding die, includes:

fixing the metal tube 3 in the fixed die plate 1 through the fixed extrusion cavity 11;

moving the first movable template 2 to a position contacting with the fixed template 1, and enabling the metal pipe 3 to penetrate through the movable template;

the extruding device extrudes the metal pipe 3 towards the direction of the fixed die plate 1 until the extruded part of the metal pipe 3 is extruded into the die cavity, so that a convex block surrounding the metal pipe 3 is formed on the metal pipe 3;

separating the first movable template 2 from the fixed template 1, and replacing the first movable template 2 with a second movable template 2;

sleeving the metal sheet 4 on the metal tube 3 through a connecting hole on the metal sheet 4, and moving the metal sheet 4 to a position where the metal sheet is contacted with the bump;

moving the second movable die plate 2 and extruding the metal sheet 4 until the metal sheet 4 moves to a position contacting with the fixed die plate 1;

meanwhile, the extruding device extrudes the metal pipe 3 towards the direction of the fixed die plate 1 until the extruded part in the metal pipe 3 is extruded into the second movable extrusion cavity 21.

Further, the extrusion molding method of the metal tube 3 and the metal sheet 4 further comprises the following steps:

when one end of the metal sheet 4 is connected to the metal tube 3 and the metal sheet 4 is moved to a position where it contacts the bump, the other end of the metal sheet 4 is placed on the fixing block 51;

the driver 53 drives the fixing column 52 to fix the metal sheet 4 on the fixing block 51;

the movable base 7 is moved to adjust the angle of connection between the metal sheet 4 and the metal tube 3.

Further, the depth of the fixed extrusion cavity 11 is less than 2 times of the wall thickness of the metal tube 3, namely the depth of the second movable extrusion cavity 21; the depth of the fixed extrusion cavity 11 and the depth of the first movable extrusion cavity 21 are more than 2 times of the wall thickness of the metal tube 3, and the depth of the first movable extrusion cavity 11 is less than the wall thickness of the metal tube 3. And a plurality of tooth blocks are arranged in the connecting hole for connecting the metal sheet 4 and the metal pipe 3, so that the contact area is increased, and the firmness of the metal sheet and the metal pipe is further improved.

Example 1

When the wall thickness of the metal pipe 3 is 1 cm, the depth of the fixed extrusion cavity 11 is 1.8cm, the depth of the first dynamic extrusion cavity 21 is 0.7 cm, and the depth of the second dynamic extrusion cavity 21 is 1.8 cm. The bump is formed by first extrusion and protrudes out of the fixed extrusion cavity 11 by 0.7 cm; the first movable die plate 2 is replaced by the second movable die plate 2, the metal sheet 4 is arranged on the bump and is extruded for the second time, under the action of pressure, the part protruding 0.7 cm from the bump of 2.5 cm is extruded into the gap between the metal sheet 4 and the metal pipe 3, and meanwhile, the second movable extrusion cavity 21 on the other side of the metal sheet 4 is communicated with the gap between the metal sheet 4 and the metal pipe 3, so when the metal pipe 3 is extruded into the second movable extrusion cavity 21, the gap between the metal sheet 4 and the metal pipe 3 is also extruded, both sides of the metal sheet 4 are simultaneously extruded into the metal pipe 3, the gap between the metal sheet 4 and the metal pipe 3 is completely filled, the connection between the metal sheet 4 and the metal pipe 3 is firmer, and the bump with the height of 1.8 is formed on both sides of the metal sheet 4.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal tube and sheet metal extrusion forming die is characterized by comprising a fixed die plate, a first movable die plate, a second movable die plate and an extrusion device, wherein a fixed extrusion cavity is arranged on the fixed die plate, a first movable extrusion cavity is arranged on the first movable die plate, and a second movable extrusion cavity is arranged on the second movable die plate;

2. The metal tube and metal sheet extrusion molding die as claimed in claim 1, wherein the fixed die plate is provided with an accommodating cavity for fixing the metal tube, the accommodating cavity penetrates through two sides of the fixed die plate, and the extrusion device and the first movable die plate or the second movable die plate are symmetrically arranged at two ends of the fixed die plate.

3. The metal tube and metal sheet extrusion molding die of claim 2, wherein the accommodating cavity, the fixed extrusion cavity, the first movable extrusion cavity and the second movable extrusion cavity are all cylindrical cavities, and the accommodating cavity, the fixed extrusion cavity and the first movable extrusion cavity or the second movable extrusion cavity are coaxially arranged.

4. The metal tube and metal sheet extrusion mold as set forth in claim 3, wherein the diameter of the fixed extrusion cavity is equal to the diameter of the first movable extrusion cavity, and the diameter of the second movable extrusion cavity is greater than the diameter of the accommodating cavity, and the fixed extrusion cavity is communicated with the accommodating cavity.

5. An extrusion molding die for forming metal tubes and metal sheets as claimed in claim 4, wherein the fixed die plate is provided with a cylinder abutting against the first movable die plate or the second movable die plate, and the fixed extrusion cavity is provided on the cylinder.

6. The metal tube and metal sheet extrusion mold of claim 5, wherein the depth of the fixed extrusion cavity is 2 times less than the wall thickness of the metal tube; the depth of the fixed extrusion cavity and the depth of the first movable extrusion cavity are more than 2 times of the wall thickness of the metal pipe, and the depth of the first movable extrusion cavity is less than the wall thickness of the metal pipe.

7. The metal tube and metal sheet extrusion molding die of claim 1, further comprising an anti-rotation device disposed at one side of the fixed die plate, wherein the anti-rotation device comprises a fixed block, a fixed column and a driver, the fixed block is provided with an open slot, and the fixed column is disposed at an output end of the driver; wherein, the fixed column is positioned at one side opposite to the open slot.

8. The metal tube and metal sheet extrusion mold as in claim 7, further comprising a base and a movable seat slidably disposed on the base, wherein the anti-rotation device is disposed on the movable seat, the fixed die plate is disposed on the base, and the fixed die plate is disposed on one side of the anti-rotation device.

9. The extrusion molding die for metal tubes and metal sheets as claimed in claim 8, wherein the metal sheet is provided with connecting holes at both ends thereof, and a plurality of tooth blocks are arranged on the connecting holes contacting with the metal sheet around the center of the connecting holes.