WO2022142349A1 - 一种简单空腔型材调直拉伸装置及方法 - Google Patents

一种简单空腔型材调直拉伸装置及方法 Download PDF

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Publication number
WO2022142349A1
WO2022142349A1 PCT/CN2021/111376 CN2021111376W WO2022142349A1 WO 2022142349 A1 WO2022142349 A1 WO 2022142349A1 CN 2021111376 W CN2021111376 W CN 2021111376W WO 2022142349 A1 WO2022142349 A1 WO 2022142349A1
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cavity
hydraulic device
pressing mechanism
profile
straightening
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PCT/CN2021/111376
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English (en)
French (fr)
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滕广标
丁幸宇
阮涛涛
陈俭
高森田
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广东坚美铝型材厂（集团）有限公司
佛山坚美铝业有限公司
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Publication of WO2022142349A1 publication Critical patent/WO2022142349A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/12—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by stretching with or without twisting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
    • B21C35/02—Removing or drawing-off work
    • B21C35/03—Straightening the work

Definitions

  • the invention relates to the field of metal processing, in particular to a straightening and stretching device and method for a simple cavity profile.
  • Extrusion refers to a plastic processing method that uses an extrusion rod to extrude an ingot installed in an extrusion cylinder out of a specific die hole, or flows into a specific void to form a plastic processing method.
  • Common extrusion methods include forward extrusion and reverse extrusion. Press and lateral extrusion, continuous extrusion and other extrusion methods.
  • the extrusion of profiles usually adopts hot extrusion. That is, the ingot is heated to a certain temperature, and under the action of the extrusion shaft, the ingot is passed through a specific die at a certain speed, supplemented by a specific cooling method and subsequent treatment to meet the requirements of use.
  • 6063 alloy is mostly used for extrusion production of thin-walled profiles.
  • the profile material In the process of material forming, due to the difference of material wall thickness, mold, traction, cooling method, etc., the profile material usually has different degrees of bending. In order to ensure the usability of the product, the straightening process is essential.
  • the product structure will have residual internal stress of varying degrees.
  • the way to eliminate internal stress is to increase the amount of elongation and control it between 1 and 3%.
  • the purpose is to make more vacancies appear in the alloy structure and dislocations, and in the subsequent aging process, the dislocations of opposite signs cancel each other due to the motion effect, thereby eliminating the lattice distortion.
  • 80% of the internal stress is the third type of internal stress caused by lattice distortion, the reduction of lattice distortion can effectively eliminate the internal stress.
  • straightening and stretching are usually carried out simultaneously.
  • the straightening machine or the stretching machine adopts the downward pressure type.
  • Using this method is convenient for straightening and stretching of solid materials or profiles with large wall thickness.
  • the down pressure is large, the clamping section is severely deformed, and due to the effect of straightening force, the profiles are mostly concave and cannot be shaped.
  • the pads are usually installed manually before each profile is straightened. After stretching, the pads need to be manually removed, and then installed when the next profile is stretched.
  • the embodiment of the present invention provides a simple straightening and stretching device and method for a cavity profile, which can basically realize the automation of the straightening operation, and is easy to use. Operation, labor intensity is greatly reduced.
  • an embodiment of the present invention provides a simple cavity profile straightening and stretching device, including a guide rail, a first hydraulic device, a main body member, a pressing mechanism, a rotating arm, a second hydraulic device, and a cavity pad a block and a third hydraulic device;
  • the first hydraulic device is fixedly connected with the guide rail through a fixed support, the first hydraulic device is connected with the main body member, the main body member is provided with a pulley, and the main body member can receive
  • the first hydraulic device is driven to move along the guide rail;
  • the second hydraulic device is arranged on the upper part of the main body member and connected with the rotating arm;
  • the mechanism is arranged in the accommodating groove and can swing up and down;
  • the rotating arm is fixedly connected with the pressing mechanism, and the second hydraulic device can drive the rotating arm to swing up and down, thereby driving the pressing mechanism to swing up and down;
  • a clamping pad is arranged below the pressing mechanism, the cavity pad is arranged between the pressing mechanism and the clamping pad, and the cavity pad
  • the pressing mechanism is connected to the main body member through a rotating shaft; the pressing mechanism is fixedly connected to the rotating shaft, and the rotating shaft can rotate relative to the main body member.
  • the rotating shaft penetrates through the main body member, and both ends of the rotating shaft are fixedly connected to the rotating arm.
  • the main body pressing mechanism is composed of several metal blocks, and the metal blocks are arranged facing each other at a predetermined distance from each other; the lower part of the metal blocks has an elliptical arc surface.
  • the outer contour of the cavity spacer is adapted to the contour of the aluminum cavity to be shaped.
  • the first hydraulic device, the second hydraulic device and the third hydraulic device are hydraulic cylinders of different sizes.
  • the elliptical arc surface and/or the clamping pad are provided with anti-skid stripes.
  • an embodiment of the present invention also provides a simple straightening and stretching method for a cavity profile, which uses the simple straightening and stretching device for a cavity profile as described above to shape the aluminum material, including the following steps:
  • the third hydraulic device is individually controlled on the control panel of the straightening machine to extend the telescopic rod, and the cavity spacer is installed at the end of the telescopic rod ;
  • the pressing mechanism is a two-step movement.
  • the first step is the metal block of the pressing mechanism.
  • the elliptical arc surface is pressed down to the profile, so that it can just fix the profile, start the third hydraulic device, push the cavity block into the profile cavity, the second step, set the down pressure of the pressing mechanism according to the process, clamp profile;
  • the device can basically realize the automation of the straightening operation, is easy to operate, and greatly reduces labor intensity.
  • the cavity profile can be effectively straightened and stretched, and the deformation of the clamping part is small; after straightening with the device, the flatness requirements can be basically met after the wastes at the head and tail are removed.
  • the cavity spacer is detachable, and can be replaced with different shapes of cavity spacers for different types of aluminum materials, and has strong applicability and good interchangeability.
  • Fig. 1 is a structural schematic diagram of a simple cavity profile straightening and stretching device of the present invention
  • FIG. 2 is a schematic structural diagram of a pressing mechanism and a cavity cushion block of a simple cavity profile straightening and stretching device of the present invention
  • Fig. 3 is a cross-sectional view of a simple straightening and stretching device for cavity profiles according to the present invention.
  • a specific embodiment of the present invention provides a simple cavity profile straightening and stretching device, including a guide rail 1 , a first hydraulic device 2 , a main body member 3 , a pressing mechanism 4 , and a rotating arm 5 , a second hydraulic device 6 , a cavity block 7 and a third hydraulic device 8 ;
  • the first hydraulic device 2 is fixedly connected to the guide rail 1 through a fixed support 9 , and the first hydraulic device 2 is connected to the main body member 3 Connection, the main body member 3 is provided with a pulley 10, the main body member 3 can be driven by the first hydraulic device 2 to move along the guide rail 1;
  • the second hydraulic device 6 is provided on the main body member 3
  • the upper part is connected with the rotating arm 5;
  • the middle part of the main body member 3 is provided with a receiving groove 31, and the pressing mechanism 4 is arranged in the receiving groove 31 and can swing up and down; the rotating arm 5 and the pressing The mechanism 4 is fixedly connected, and the second hydraulic device 6 can drive the rotating arm 5 to
  • the device can basically realize the automation of the straightening operation, is easy to operate, and greatly reduces labor intensity.
  • the cavity profile can be effectively straightened and stretched, and the deformation of the clamping part is small; after straightening with the device, the flatness requirements can basically be met after the head and tail wastes are removed.
  • the cavity spacer 7 is detachable, and can be replaced with different shapes of cavity spacers 7 for different types of aluminum materials, with strong applicability and good interchangeability.
  • the pressing mechanism 4 is connected with the main body member 3 through a rotating shaft 12 ; the pressing mechanism 4 is fixedly connected with the rotating shaft 12 , and the rotating shaft 12 can rotate relative to the main body member 3 .
  • the rotating shaft 12 penetrates through the main body member 3 , and two ends of the rotating shaft 12 are fixedly connected to the rotating arm 5 . Since there are often a lot of aluminum debris in the aluminum production workshop, the above debris is easy to fall into various movable elements, hindering the movement of each movable element.
  • the push-down mechanism 4 is driven by the rotating arm 5 of the above-mentioned shape, so that the action of the push-down mechanism 4 is stable, not easily affected by debris, and meets the actual use requirements on site.
  • the pressing mechanism 4 is composed of a plurality of metal blocks 41 , and the metal blocks 41 are arranged facing each other at a predetermined distance from each other; the lower part of the metal block 41 has an elliptical arc surface 411 .
  • the interval of the metal blocks 41 can avoid the flake-like protrusions that may appear on the surface of the aluminum material, so that the pressing mechanism 4 is clamped on the force-bearing surface of the aluminum material; in addition, the pressing mechanism of the above structure is adopted 4. It can also increase the friction coefficient of the aluminum material, making the clamping more firm.
  • the outer contour of the cavity spacer 7 is adapted to the contour of the aluminum cavity to be shaped. After the cavity block 7 extends into the cavity of the aluminum material, when the aluminum material is pressed by the pressing mechanism 4 and the clamping backing plate 11, the cavity block 7 can keep the aluminum material in its original shape, Avoid excessive deformation of aluminum due to clamping force.
  • the first hydraulic device 2, the second hydraulic device 6 and the third hydraulic device 8 are hydraulic cylinders of different sizes.
  • the elliptical arc surface 411 and/or the clamping pad 11 are provided with anti-skid stripes 13 .
  • a specific embodiment of the present invention also provides a simple straightening and stretching method for cavity profiles, comprising the following steps:
  • the profile is extruded by the extruder, passed through the online cooling system, interrupted by the interruption saw, and then pulled by the tractor to the material bed of the equipment at the rear of the extrusion, and then transferred laterally to the straightening machine for straightening and stretching;
  • the third hydraulic device 8 is individually controlled on the control panel of the straightening machine to extend the telescopic rod, and the cavity spacer is installed at the end of the telescopic rod 7 (Designed and produced for the profile produced in advance), and subsequent straightening and stretching do not need to repeat this step;
  • the pressing mechanism 4 is a two-step movement.
  • the first step is the pressing mechanism 4.
  • the elliptical arc surface 411 of the metal block 41 is pressed down to the profile, so that it can just fix the profile, start the third hydraulic device 8, push the cavity block 7 into the profile cavity, the second step, press down according to the process setting Downforce of mechanism 4, clamping profile;
  • the pressing mechanism 4 is reset, the third hydraulic device 8 is reset, the cavity block 7 is detached from the inner cavity of the profile, and the profile is transferred from the material bed to the sawing part of the finished product.
  • the cavity profile can be effectively straightened and stretched, and the deformation of the clamping part is small; after straightening with the device, the flatness requirements can be basically met after the head and tail wastes are removed.
  • the cavity spacer 7 is detachable, and can be replaced with different shapes of cavity spacers for different types of aluminum materials, with strong applicability and good interchangeability.

Abstract

一种简单空腔型材调直拉伸装置，包括导轨（1）、第一液压装置（2）、主体构件（3）、下压机构（4）、旋转臂（5）、第二液压装置（6）、空腔垫块（7）和第三液压装置（8）；第一液压装置通过固定支承件（9）与导轨固定连接，第一液压装置与主体构件连接；第二液压装置设于主体构件上部，并与旋转臂连接；旋转臂与下压机构固定连接，第二液压装置能够驱动旋转臂上下摆动，从而带动下压机构上下摆动；下压机构的下方设有与之配合的夹持垫板（11），空腔垫块与第三液压装置连接。还包括一种简单空腔型材调直拉伸方法。该装置能够基本实现调直操作的自动化，且易于操作，劳动强度大大降低，能够对空腔型材进行有效的调直拉伸，且夹持部位变形量小。

Description

一种简单空腔型材调直拉伸装置及方法 技术领域
本发明涉及金属加工领域，尤其涉及一种简单空腔型材调直拉伸装置及方法。
背景技术
铝加工工业中，挤压制品占据相当重要的地位，且铝合金型材生产最主要的方法就是通过挤压的方式生产。挤压是指采用挤压杆将装在挤压筒内的锭坯压出特定的模孔，或流入特定的空隙而成型的塑性加工方法，常见挤压方法有正向挤压、反向挤压及侧向挤压、连续挤压及其他挤压方式。
型材尤其是空腔型材的挤压，通常采用热挤压的方式。即将锭坯加热到一定温度，在挤压轴的作用下，以一定速度使锭坯通过特定的模具，再辅以特定的冷却方式及后续处理，达到使用要求。其中，薄壁型材多使用6063合金进行挤压生产。
材料成型过程中，因材料壁厚差距、模具、牵引、冷却方式等原因，型材出料通常会有不同程度的弯曲。为保证产品的使用性，调直工序是必不可少的。
另外，因为冷却的原因，产品组织会残余不同程度的内应力，通常消除内应力的方式是增加拉伸量，且控制在1～3％之间，目的是使合金组织内部出现较多空位及位错，并在后续时效过程中，异号位错由于运动作用相互抵消，从而消除晶格畸变。因为80％的内应力是由于晶格畸变造成的第三类内应力，因此晶格畸变的减少可以有效的消除内应力。生产过程中，为了保证生产效率以及交货效率，通常调直和拉伸同步进行。
传统挤压生产过程中，调直机或拉伸机均采用下压式。使用该方法对于实心材或壁厚大的型材的调直拉伸操作方便。但对于大空腔，且平面度要求较高的型材，不太适用，因为下压力较大，夹持段严重变形，加以调直力的作用，型材多呈面凹的现象，且无法整形。解决该问题通常采用每支型材调直前人工装上垫块的方式，拉伸完后还需手工卸下垫块，待下支型材拉伸时再装上，周 而复始，操作繁琐，劳动强度大。
发明内容
本发明实施例为了解决现有调直拉伸设备操作繁琐，劳动强度大的技术问题，提供一种简单空腔型材调直拉伸装置及方法，可能够基本实现调直操作的自动化，且易于操作，劳动强度大大降低。
为了解决上述技术问题，本发明实施例提供了一种简单空腔型材调直拉伸装置，包括导轨、第一液压装置、主体构件、下压机构、旋转臂、第二液压装置、空腔垫块和第三液压装置；所述第一液压装置通过固定支承件与导轨固定连接，所述第一液压装置与所述主体构件连接，所述主体构件上设有滑轮，所述主体构件能够受所述第一液压装置驱动而沿所述导轨移动；所述第二液压装置设于所述主体构件上部，并与所述旋转臂连接；所述主体构件中部设有容纳槽，所述下压机构设于所述容纳槽中并可上下摆动；所述旋转臂与下压机构固定连接，所述第二液压装置能够驱动旋转臂上下摆动，从而带动所述下压机构上下摆动；所述下压机构的下方设有与之配合的夹持垫板，所述空腔垫块设于所述下压机构和夹持垫板之间，所述空腔垫块与所述第三液压装置连接，所述第三液压装置能够驱动所述空腔垫块横向移动。
作为上述方案的改进，所述下压机构通过旋转轴与所述主体构件连接；所述下压机构与所述旋转轴固定连接，所述旋转轴能够相对所述主体构件旋转。
作为上述方案的改进，所述旋转轴贯穿所述主体构件，其两端与所述旋转臂固定连接。
作为上述方案的改进，所述主体下压机构由若干金属块组成，所述金属块相互间隔预定距离地正对设置；所述金属块下部具有椭圆弧面。
作为上述方案的改进，所述空腔垫块的外轮廓与待整形的铝材空腔轮廓相适应。
作为上述方案的改进，所述第一液压装置、第二液压装置和第三液压装置为不同尺寸的液压缸。
作为上述方案的改进，所述椭圆弧面和/或夹持垫板上设有防滑条纹。
相应地，本发明实施例还提供了一种简单空腔型材调直拉伸方法，其采用如上文所述的简单空腔型材调直拉伸装置对铝材进行整形，包括以下步骤：
(1)型材由挤压机挤出，穿过在线冷却系统，由中断锯中断后再由牵引机牵引到达挤压后部设备料床，然后横向传输至调直机，以待调直拉伸；
(2)对于空腔型材首次调直拉伸时，在调直机控制操作面板上单独控制第三液压装置，使其伸缩杆伸出，并在伸缩杆端部安装上所述空腔垫块；
(3)通过精确控制型材传输位移，使其位于前后调直机的中间部位，启动第二液压装置以驱动下压机构，下压机构为两步运动，第一步，下压机构的金属块的椭圆弧面下压至型材，使其刚好能固定住型材，启动第三液压装置，将空腔垫块推进型材腔体内，第二步，按照工艺设定下压机构的下压力，夹紧型材；
(4)按照工艺设定拉伸长度，启动第一液压装置，主体构件后移，使型材纵向拉伸；
(5)拉伸完毕，下压机构复位，第三液压装置复位，空腔垫块从型材内腔脱离，型材由料床传输至成品锯切处；
(6)重复步骤3到5进行其它型材的调直拉伸。
实施本发明实施例，具有如下有益效果：
本装置能够基本实现调直操作的自动化，且易于操作，劳动强度大大降低。应用本装置和方法，能够对空腔型材进行有效的调直拉伸，且夹持部位变形量小；使用该装置调直后，头尾废料去除后基本可以达到平面度要求。所述空腔垫块可拆卸，能够针对不同型号的铝材更换不同形状的空腔垫块，适用性强，互换性好。
附图说明
图1是本发明一种简单空腔型材调直拉伸装置的结构示意图；
图2是本发明一种简单空腔型材调直拉伸装置的下压机构和空腔垫块的结构示意图；
图3是本发明一种简单空腔型材调直拉伸装置的剖视图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述。仅此声明，本发明在文中出现或即将出现的上、下、左、 右、前、后、内、外等方位用词，仅以本发明的附图为基准，其并不是对本发明的具体限定。
如图1-图3所示，本发明具体实施例提供了一种简单空腔型材调直拉伸装置，包括导轨1、第一液压装置2、主体构件3、下压机构4、旋转臂5、第二液压装置6、空腔垫块7和第三液压装置8；所述第一液压装置2通过固定支承件9与导轨1固定连接，所述第一液压装置2与所述主体构件3连接，所述主体构件3上设有滑轮10，所述主体构件3能够受所述第一液压装置2驱动而沿所述导轨1移动；所述第二液压装置6设于所述主体构件3上部，并与所述旋转臂5连接；所述主体构件3中部设有容纳槽31，所述下压机构4设于所述容纳槽31中并可上下摆动；所述旋转臂5与下压机构4固定连接，所述第二液压装置6能够驱动旋转臂5上下摆动，从而带动所述下压机构4上下摆动；所述下压机构4的下方设有与之配合的夹持垫板11，所述空腔垫块7设于所述下压机构4和夹持垫板11之间，所述空腔垫块7与所述第三液压装置8连接，所述第三液压装置8能够驱动所述空腔垫块7横向移动。
本装置能够基本实现调直操作的自动化，且易于操作，劳动强度大大降低。使用本装置，能够对空腔型材进行有效的调直拉伸，且夹持部位变形量小；使用该装置调直后，头尾废料去除后基本可以达到平面度要求。所述空腔垫块7可拆卸，能够针对不同型号的铝材更换不同形状的空腔垫块7，适用性强，互换性好。
其中，所述下压机构4通过旋转轴12与所述主体构件3连接；所述下压机构4与所述旋转轴12固定连接，所述旋转轴12能够相对所述主体构件3旋转。所述旋转轴12贯穿所述主体构件3，其两端与所述旋转臂5固定连接。由于铝材生产车间常常存在较多的铝材碎屑，上述碎屑容易落入各种活动元件中，阻碍各个活动元件的运动。通过上述形状的旋转臂5驱动所述下压机构4，下压机构4的活动稳定，不容易受碎屑的影响，满足现场的实际使用需求。
优选地，所述下压机构4由若干金属块41组成，所述金属块41相互间隔预定距离地正对设置；所述金属块41下部具有椭圆弧面411。采用上述结构，所述金属块41的间隔可以避开铝材表面可能出现的薄片状凸起，使下压机构4夹持在铝材的受力表面上；另外，采用上述结构的下压机构4，也能够增大对铝材的摩擦系数，使夹持更加牢固。
优选地，所述空腔垫块7的外轮廓与待整形的铝材空腔轮廓相适应。当所述空腔垫块7伸入铝材的空腔之后，铝材被所述下压机构4和夹持垫板11压紧时，所述空腔垫块7能够使铝材保持原形，避免因夹持力造成铝材过度变形。
优选地，所述第一液压装置2、第二液压装置6和第三液压装置8为不同尺寸的液压缸。
优选地，为了提升下压机构4和/或夹持垫板11的摩擦系数，所述椭圆弧面411和/或夹持垫板11上设有防滑条纹13。
本发明具体实施例还提供了一种简单空腔型材调直拉伸方法，包括以下步骤：
1、型材由挤压机挤出，穿过在线冷却系统，由中断锯中断后再由牵引机牵引到达挤压后部设备料床，然后横向传输至调直机，以待调直拉伸；
2、对于空腔型材首次调直拉伸时，在调直机控制操作面板上单独控制第三液压装置8，使其伸缩杆伸出，并在伸缩杆端部安装上所述空腔垫块7(事先针对所生产的型材设计并制作)，后续调直拉伸无需重复该步骤；
3、通过精确控制型材传输位移，使其位于前后调直机的中间部位，启动第二液压装置6以驱动下压机构4，下压机构4为两步运动，第一步，下压机构4的金属块41的椭圆弧面411下压至型材，使其刚好能固定住型材，启动第三液压装置8，将空腔垫块7推进型材腔体内，第二步，按照工艺设定下压机构4的下压力，夹紧型材；
4、按照工艺设定拉伸长度，启动第一液压装置2，主体构件3后移，使型材纵向拉伸。
5、拉伸完毕，下压机构4复位，第三液压装置8复位，空腔垫块7从型材内腔脱离，型材由料床传输至成品锯切处。
6、重复步骤3到5进行其它型材的调直拉伸。
使用上述方法，能够对空腔型材进行有效的调直拉伸，且夹持部位变形量小；使用该装置调直后，头尾废料去除后基本可以达到平面度要求。所述空腔垫块7可拆卸，能够针对不同型号的铝材更换不同形状的空腔垫块，适用性强，互换性好。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这 些改进和润饰也视为本发明的保护范围。

Claims (8)

  1. 一种简单空腔型材调直拉伸装置，其特征在于，包括导轨、第一液压装置、主体构件、下压机构、旋转臂、第二液压装置、空腔垫块和第三液压装置；
    所述第一液压装置通过固定支承件与导轨固定连接，所述第一液压装置与所述主体构件连接，所述主体构件上设有滑轮，所述主体构件能够受所述第一液压装置驱动而沿所述导轨移动；
    所述第二液压装置设于所述主体构件上部，并与所述旋转臂连接；
    所述主体构件中部设有容纳槽，所述下压机构设于所述容纳槽中并可上下摆动；
    所述旋转臂与下压机构固定连接，所述第二液压装置能够驱动旋转臂上下摆动，从而带动所述下压机构上下摆动；
    所述下压机构的下方设有与之配合的夹持垫板，所述空腔垫块设于所述下压机构和夹持垫板之间，所述空腔垫块与所述第三液压装置连接，所述第三液压装置能够驱动所述空腔垫块横向移动。
  2. 如权利要求1所述的简单空腔型材调直拉伸装置，其特征在于，所述下压机构通过旋转轴与所述主体构件连接；所述下压机构与所述旋转轴固定连接，所述旋转轴能够相对所述主体构件旋转。
  3. 如权利要求2所述的简单空腔型材调直拉伸装置，其特征在于，所述旋转轴贯穿所述主体构件，其两端与所述旋转臂固定连接。
  4. 如权利要求3所述的简单空腔型材调直拉伸装置，其特征在于，所述主体下压机构由若干金属块组成，所述金属块相互间隔预定距离地正对设置；所述金属块下部具有椭圆弧面。
  5. 如权利要求1所述的简单空腔型材调直拉伸装置，其特征在于，所述空腔垫块的外轮廓与待整形的铝材空腔轮廓相适应。
  6. 如权利要求1所述的简单空腔型材调直拉伸装置，其特征在于，所述第一液压装置、第二液压装置和第三液压装置为不同尺寸的液压缸。
  7. 如权利要求4所述的简单空腔型材调直拉伸装置，其特征在于，所述椭圆弧面和/或夹持垫板上设有防滑条纹。
  8. 一种简单空腔型材调直拉伸方法，其特征在于，其采用如1-7所述的简单空腔型材调直拉伸装置对铝材进行整形，包括以下步骤：
    (1)型材由挤压机挤出，穿过在线冷却系统，由中断锯中断后再由牵引机牵引到达挤压后部设备料床，然后横向传输至调直机，以待调直拉伸；
    (2)对于空腔型材首次调直拉伸时，在调直机控制操作面板上单独控制第三液压装置，使其伸缩杆伸出，并在伸缩杆端部安装上所述空腔垫块；
    (3)通过精确控制型材传输位移，使其位于前后调直机的中间部位，启动第二液压装置以驱动下压机构，下压机构为两步运动，第一步，下压机构的金属块的椭圆弧面下压至型材，使其刚好能固定住型材，启动第三液压装置，将空腔垫块推进型材腔体内，第二步，按照工艺设定下压机构的下压力，夹紧型材；
    (4)按照工艺设定拉伸长度，启动第一液压装置，主体构件后移，使型材纵向拉伸；
    (5)拉伸完毕，下压机构复位，第三液压装置复位，空腔垫块从型材内腔脱离，型材由料床传输至成品锯切处；
    (6)重复步骤3到5进行其它型材的调直拉伸。
PCT/CN2021/111376 2020-12-31 2021-08-08 一种简单空腔型材调直拉伸装置及方法 WO2022142349A1 (zh)

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