An automatic production system for aluminum forming

Abstract

The present invention relates to the technical field of aluminum forming, and specifically to an automatic production system for aluminum forming, comprising a traction forming draw tube and a driven stretching buffer plate, wherein an expansion lining structure with an airtight function is arranged on the surface of one end of the traction forming draw tube, and the driven stretching buffer plate is fixedly installed on the surface of the other end of the traction forming draw tube, and an active stretching extrusion plate is arranged on the surface of one side of the driven stretching buffer plate, and the driven stretching buffer plate is arranged coaxially with the active stretching extrusion plate; the present invention drives the driven stretching buffer plate to move through a buffer support spring by the arranged active stretching extrusion plate, so that the aluminum tube fixed on the outside of the expansion lining structure of the traction forming draw tube has a buffer force when being pulled and extruded, thereby avoiding the vibration caused by the external mechanical pulling force from affecting the surface forming quality of the aluminum tube, resulting in the appearance of ripples and the like, so that the quality of the aluminum tube is more stable during stretching.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum material forming, in particular to an automatic production system for aluminum material forming. Background Art

[0002] Aluminum tube is a form of aluminum material. Aluminum tube is usually formed by extrusion during the manufacturing process. First, the aluminum material is made into a cylindrical rough blank, which is then extruded through a cylindrical die to form an aluminum tube rough blank. The aluminum tube rough blank is stretched and extruded through a combination die for a second time to form an aluminum tube. During the secondary stretching and extrusion process, a traction system is required to pull the aluminum tube rough blank so that it can be further extruded through the combination die. During the traction and extrusion process, the traditional traction system will inevitably produce mechanical vibration due to hydraulic or screw transmission. The mechanical vibration will affect the quality of the aluminum tube being stretched and formed, causing stretching lines and affecting the molding quality. In addition, during the stretching and extrusion of some aluminum tubes with thinner walls, the wall of the aluminum tube is prone to collapse inward, causing problems such as loss of roundness. Summary of the invention

[0003] The object of the present invention is to provide an automatic production system for aluminum forming to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic production system for aluminum forming, comprising a traction forming drawing tube and a driven stretching buffer plate, wherein an expansion lining structure with an airtight function is arranged on the surface of one end of the traction forming drawing tube, and the driven stretching buffer plate is fixedly installed on the surface of the other end of the traction forming drawing tube, and an active stretching extrusion plate is arranged on the surface of one side of the driven stretching buffer plate, the driven stretching buffer plate is coaxially arranged with the active stretching extrusion plate, and a buffer support spring is fixedly installed between the driven stretching buffer plate and the active stretching extrusion plate, at least two sliding rods are arranged on the outside of the driven stretching buffer plate and the active stretching extrusion plate, and a drawing tube through hole is opened at the center of the active stretching extrusion plate.

[0005] Preferably, the axial direction of the sliding polished rod is parallel to the axial directions of the driven stretching buffer plate and the active stretching extrusion plate, the driven stretching buffer plate and the active stretching extrusion plate slide on the outer surface of the sliding polished rod, and the traction forming draw tube is inserted through the draw tube through hole.

[0006] Preferably, the expansion liner structure includes a stretch liner end block fixedly mounted on one side surface of the traction forming drawn tube and a cylindrical cavity opened inside the traction forming drawn tube, and an annular airtight groove is opened on the outer surface of the stretch liner end block.

[0007] Preferably, an airtight rubber ring is installed inside the annular airtight groove, and a connecting spring is fixedly installed on the surface of one side of the stretch liner end block. There are several connecting springs, which are evenly distributed in a circular array.

[0008] Preferably, an inclined extrusion lining block is fixedly installed on the surface of one end of the connecting spring piece, an anti-slip protrusion is fixedly installed on the outer surface of the inclined extrusion lining block, the inner surface of the inclined extrusion lining block has a certain slope, and extrusion outward expansion pins are movably installed on the inner sides of several of the inclined extrusion lining blocks, and the extrusion outward expansion pins are in contact and cooperation with the slope of the inner surface of the inclined extrusion lining block.

[0009] Preferably, a connecting push rod is movably interspersed inside the cylindrical cavity, one end of the connecting push rod is fixedly installed on the outer surface of an extruded external expansion pin, and a conveying air path cavity is opened inside the extruded external expansion pin and the connecting push rod.

[0010] Preferably, a push rod fixing plate is fixedly installed on the other end surface of the connecting push rod, a push rod hydraulic rod is fixedly installed between the push rod fixing plate and the driven stretching buffer plate, a high-pressure air intake pipe is fixedly installed on the other side surface of the push rod fixing plate, and the high-pressure air intake pipe is connected to the delivery air path cavity.

[0011] Preferably, a buffer plate sleeve is fixedly installed on the outer surface of the driven stretching buffer plate, and a limiting through hole is opened inside the buffer plate sleeve, a buffer plate reinforcing rib is fixedly installed on the outer surface of the driven stretching buffer plate, an extrusion plate sleeve is fixedly installed on the outer surface of the active stretching extrusion plate, and an extrusion plate through hole is opened inside the extrusion plate sleeve, an extrusion plate reinforcing rib is fixedly installed on the outer surface of the active stretching extrusion plate, and the sliding light rod is inserted through the limiting through hole and the extrusion plate through hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention drives the driven stretch buffer plate to move by the active stretch extrusion plate through the buffer support spring, so that the aluminum tube blank fixed on the outside of the expansion lining structure of the traction forming tube has a buffer force when being pulled and extruded, avoiding the vibration caused by the external mechanical pulling force from affecting the surface forming quality of the aluminum tube and causing the appearance of ripples and other lines, so that the quality of the aluminum tube blank is more stable during stretching.

[0014] The airtight rubber ring is provided to seal the expansion lining structure and the inner wall of the aluminum tube blank. Since the other end of the aluminum tube blank is in a closed state due to the blockage of the extrusion die, high-pressure gas is blown into the conveying air path cavity through the high-pressure air intake pipe, so that the interior of the aluminum tube blank is in a high-pressure state. The high pressure acting on the surface of the expansion lining structure can push the aluminum tube blank to stretch, assist in applying force, and prevent the aluminum tube from collapsing inward during forming, thereby further improving the forming quality of the aluminum tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of a three-dimensional half-section structure of the present invention;

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the middle A area;

[0018] Figure 4 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 5 It is a cross-sectional schematic diagram of the present invention.

[0020] In the figure: 1. traction forming drawing tube; 2. passive stretching buffer plate; 3. active stretching extrusion plate; 4. buffer support spring; 5. sliding light rod; 6. drawing tube through hole; 101. stretching liner end block; 102. cylindrical cavity; 103. annular airtight groove; 104. airtight rubber ring; 105. connecting spring; 106. inclined extrusion lining block; 107. anti-slip protrusion; 108. extrusion outer extension pin; 109. connecting push rod; 110. conveying gas path cavity; 111. push rod fixing plate; 112. push rod hydraulic rod; 113. high pressure intake pipe; 201. buffer plate sleeve; 202. limit through hole; 203. buffer plate reinforcement rib; 301. extrusion plate sleeve; 302. extrusion plate through hole; 303. extrusion plate reinforcement rib. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 5The present invention provides a technical solution: an automatic production system for aluminum material forming, comprising a traction forming drawing tube 1 and a driven stretching buffer plate 2, an expansion lining structure with an airtight function is arranged on the surface of one end of the traction forming drawing tube 1, the driven stretching buffer plate 2 is fixedly installed on the surface of the other end of the traction forming drawing tube 1, an active stretching extrusion plate 3 is arranged on the surface of one side of the driven stretching buffer plate 2, the driven stretching buffer plate 2 and the active stretching extrusion plate 3 are arranged coaxially, and a buffer support spring 4 is fixedly installed between the driven stretching buffer plate 2 and the active stretching extrusion plate 3, at least two sliding light rods 5 are arranged on the outside of the driven stretching buffer plate 2 and the active stretching extrusion plate 3, and a drawing tube through hole 6 is opened at the center of the active stretching extrusion plate 3.

[0023] The axial direction of the sliding rod 5 is parallel to the axial directions of the driven stretching buffer plate 2 and the active stretching extrusion plate 3. The driven stretching buffer plate 2 and the active stretching extrusion plate 3 slide on the outer surface of the sliding rod 5, and the traction forming draw tube 1 is inserted through the draw tube through hole 6, so that the active stretching extrusion plate 3 and the traction forming draw tube 1 do not contact each other.

[0024] The expansion lining structure includes a stretching lining end block 101 fixedly installed on the surface of one side of the traction forming drawing tube 1 and a cylindrical cavity 102 opened inside the traction forming drawing tube 1, and an annular airtight groove 103 is opened on the outer surface of the stretching lining end block 101; an airtight rubber ring 104 is installed inside the annular airtight groove 103, and a connecting spring piece 105 is fixedly installed on the surface of one side of the stretching lining end block 101. The number of connecting spring pieces 105 is several and evenly distributed in a circular array; an inclined extrusion liner block 106 is fixedly installed on the surface of one end of the connecting spring piece 105, and the inclined extrusion liner block 106 is fixedly installed on the surface of one end of the connecting spring piece 105. The outer surface is fixedly installed with anti-skid protrusions 107, and the anti-skid protrusions 107 and the outer surface of the inclined extrusion lining block 106 can be welded and fixed. The anti-skid protrusions 107 will be stuck in the inner wall of the aluminum tube to prevent sliding during pulling. The inner surface of the inclined extrusion lining block 106 has a certain slope. The inner positions of several inclined extrusion lining blocks 106 are movably installed with extrusion expansion pins 108. The extrusion expansion pins 108 are in contact with the inclination of the inner surface of the inclined extrusion lining block 106. When the extrusion expansion pins 108 are extruded outward, the inclined extrusion lining block 106 can be expanded outward, thereby being fixed to the inner wall surface of the aluminum tube, which is convenient for pulling the aluminum tube. Its structure is as follows Figure 3As shown; a connecting push rod 109 is movably interspersed inside the cylindrical cavity 102, one end of the connecting push rod 109 is fixedly installed on the outer surface of the extrusion external expansion pin 108, and a conveying air path cavity 110 is opened inside the extrusion external expansion pin 108 and the connecting push rod 109; a push rod fixing plate 111 is fixedly installed on the surface of the other end of the connecting push rod 109, a push rod hydraulic rod 112 is fixedly installed between the push rod fixing plate 111 and the driven stretching buffer plate 2, and a high-pressure air intake pipe 113 is fixedly installed on the surface of the other side of the push rod fixing plate 111, and the high-pressure air intake pipe 113 is connected to the conveying air path cavity 110. When working, the high-pressure air intake pipe 113 is connected to an external high-pressure air source.

[0025] A buffer plate sleeve 201 is fixedly installed on the outer surface of the driven stretching buffer plate 2, and a limiting through hole 202 is opened inside the buffer plate sleeve 201, a buffer plate reinforcing rib 203 is fixedly installed on the outer surface of the driven stretching buffer plate 2, an extrusion plate sleeve 301 is fixedly installed on the outer surface of the active stretching extrusion plate 3, and an extrusion plate through hole 302 is opened inside the extrusion plate sleeve 301, an extrusion plate reinforcing rib 303 is fixedly installed on the outer surface of the active stretching extrusion plate 3, and the sliding rod 5 is inserted through the limiting through hole 202 and the extrusion plate through hole 302, so that the driven stretching buffer plate 2 and the active stretching extrusion plate 3 slide on the outer surface of the sliding rod 5.

[0026] The active stretching extrusion plate 3 is driven to slide on the surface of the sliding polished rod 5 by an external hydraulic system or a screw drive system. First, the active stretching extrusion plate 3 moves toward the end where the expansion lining structure is located, and the buffer support spring 4 pulls the passive stretching buffer plate 2 to move, so that the expansion lining structure is inserted into the interior of the aluminum tube rough blank. The push rod hydraulic rod 112 contracts, and the push rod fixing plate 111 drives the connecting push rod 109 to move, so that the extrusion outward expansion pin 108 at the end of the connecting push rod 109 moves outward, thereby squeezing the inclined extrusion lining block 106 outward and separating it, and fixing it to the inner wall of the pipeline of the aluminum tube rough blank, and then the high pressure is introduced into the push rod 112. The air pipe 113 blows high-pressure gas into the interior of the aluminum tube blank through the conveying air path cavity 110. The gas fills the inner cavity of the pipeline of the aluminum tube blank to prevent the aluminum tube from deforming during extrusion molding, and assists the active stretching extrusion plate 3 to apply force. The active stretching extrusion plate 3 moves in the opposite direction, and pushes the driven stretching buffer plate 2 to move through the buffer support spring 4. When the driving force of the active stretching extrusion plate 3 vibrates, the buffer support spring 4 will buffer and will not cause excessive interference to the movement of the driven stretching buffer plate 2, and will not affect the pulling of the aluminum tube blank by the traction forming drawing tube 1, thereby making the aluminum tube extrusion molding more stable.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic production system for aluminum material forming, comprising a pulling forming draw tube (1) and a driven drawing buffer plate (2), characterized in that: An expansion lining structure with an airtight function is arranged on the surface of one end of the traction forming draw tube (1), the driven stretch buffer plate (2) is fixedly installed on the surface of the other end of the traction forming draw tube (1), an active stretch extrusion plate (3) is arranged on the surface of one side of the driven stretch buffer plate (2), the driven stretch buffer plate (2) and the active stretch extrusion plate (3) are arranged coaxially, and a buffer support spring (4) is fixedly installed between the driven stretch buffer plate (2) and the active stretch extrusion plate (3), at least two sliding polished rods (5) are arranged outside the driven stretch buffer plate (2) and the active stretch extrusion plate (3), and a draw tube through hole (6) is opened at the center of the active stretch extrusion plate (3); The axis direction of the sliding polished rod (5) is parallel to the axis directions of the driven stretching buffer plate (2) and the active stretching extrusion plate (3); the driven stretching buffer plate (2) and the active stretching extrusion plate (3) slide on the outer surface of the sliding polished rod (5); and the traction forming draw tube (1) is inserted through the draw tube through hole (6); The expansion liner structure comprises a stretch liner end block (101) fixedly mounted on the surface of one side of the traction forming draw tube (1) and a cylindrical cavity (102) opened inside the traction forming draw tube (1), and an annular airtight groove (103) is opened on the outer surface of the stretch liner end block (101); An airtight rubber ring (104) is sleeved and installed inside the annular airtight groove (103), and a connecting spring sheet (105) is fixedly installed on the surface of one side of the stretch liner end block (101), and the connecting spring sheets (105) are in a plurality and are evenly distributed in a circular array; An inclined extrusion lining block (106) is fixedly mounted on the surface of one end of the connecting spring piece (105); an anti-slip protrusion (107) is fixedly mounted on the outer surface of the inclined extrusion lining block (106); the inner surface of the inclined extrusion lining block (106) has a certain slope; extrusion extension pins (108) are movably mounted on the inner sides of a plurality of the inclined extrusion lining blocks (106); the extrusion extension pins (108) are in contact with and cooperate with the slope of the inner surface of the inclined extrusion lining block (106); A connecting push rod (109) is movably inserted into the cylindrical cavity (102), one end of the connecting push rod (109) is fixedly mounted on the outer surface of the extrusion external expansion pin (108), and a conveying gas path cavity (110) is provided inside the extrusion external expansion pin (108) and the connecting push rod (109); A push rod fixing plate (111) is fixedly mounted on the surface of the other end of the connecting push rod (109), a push rod hydraulic rod (112) is fixedly mounted between the push rod fixing plate (111) and the driven stretch buffer plate (2), and a high-pressure air intake pipe (113) is fixedly mounted on the surface of the other side of the push rod fixing plate (111), the high-pressure air intake pipe (113) being in communication with the delivery air path cavity (110).

2. The automatic production system for aluminum forming according to claim 1, characterized in that: A buffer plate sleeve (201) is fixedly mounted on the outer surface of the driven stretch buffer plate (2), and a limit through hole (202) is provided inside the buffer plate sleeve (201); a buffer plate reinforcing rib (203) is fixedly mounted on the outer surface of the driven stretch buffer plate (2); an extrusion plate sleeve (301) is fixedly mounted on the outer surface of the active stretch extrusion plate (3), and an extrusion plate through hole (302) is provided inside the extrusion plate sleeve (301); an extrusion plate reinforcing rib (303) is fixedly mounted on the outer surface of the active stretch extrusion plate (3); and the sliding polished rod (5) is inserted through the limit through hole (202) and the extrusion plate through hole (302).

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