Straightening device for super large section aluminum profile with width of 1.2 meters

Abstract

A straightening device for ultra-large cross-section aluminum profiles with a width of 1.2 meters, belonging to the field of machining technology, is characterized by: using two ultra-large hydraulic systems in parallel as the main force for straightening; installing hydraulic pipe supports at various points along the excessively long hydraulic lines of the stretching hydraulic cylinders; connecting the stretching hydraulic rods of the two hydraulic systems together using connecting blocks; and connecting the connecting parts to the main frame to complete the straightening work of ultra-large cross-section aluminum profiles; two symmetrically distributed hydraulic clamping mechanisms are respectively set at the top and bottom of the main frame; and limit blocks are installed on both sides of the bottom track to ensure that the support slide can be tightly connected to the bottom track and can move back and forth precisely. The beneficial effects are: increasing the maximum straightening width of the aluminum profile to 1.2 meters; significantly doubling the tensile force; and ensuring that the device is tightly fixed to the aluminum profile, thus excellently completing the straightening task of ultra-large cross-section aluminum profiles.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology and relates to an improvement of non-ferrous metal processing equipment. Background Technology

[0002] The aluminum profiles for railcars require specialized extrusion presses for production. After production, the straightness often fails to meet usage requirements, necessitating a specialized straightening device. Currently used devices can only straighten aluminum profiles with a maximum cross-section width of 0.8 meters. Our newly commissioned 235MN aluminum profile extrusion press, however, can produce profiles with a maximum cross-section width of 1.2 meters. The older straightening devices cannot straighten these profiles, and their tensile strength is insufficient for 1.2-meter wide profiles (their maximum tensile strength is only for 0.8-meter wide profiles). The older straightening devices typically use a top-only clamping method, unsuitable for clamping ultra-large cross-sections (1.2-meter wide). For ultra-large cross-sections (1.2-meter wide), bidirectional (top and bottom) clamping is required for effective straightening.

[0003] In summary, the problems with existing technologies are:

[0004] (1) The old-style aluminum profile straightening device can only straighten the largest aluminum profile cross section with a maximum width of 0.8 meters, while our newly put into production 235MN aluminum profile extrusion machine can produce aluminum profile cross section with a maximum width of 1.2 meters, which exceeds the working capacity of the existing device.

[0005] (2) The old-style aluminum profile straightening device cannot pull a 1.2-meter wide aluminum profile (its maximum tensile force can only handle an aluminum profile with a width of 0.8 meters).

[0006] (3) The old-style aluminum profile straightening device usually uses top unidirectional clamping and straightening, which is not suitable for clamping aluminum profiles with ultra-large cross-sections (1.2 meters wide). Summary of the Invention

[0007] The purpose of this patent is to provide a straightening device for aluminum profiles with an ultra-large cross-section of 1.2 meters. It uses a dual hydraulic cylinder drive as the main force for straightening, ensuring that the device can straighten aluminum profiles with a cross-section width of up to 1.2 meters. The design of upper and lower bidirectional hydraulic clamping plates ensures that the device can clamp aluminum profiles with a maximum width of 1.2 meters during operation.

[0008] The technical solution of this utility model is as follows: Two ultra-large hydraulic systems are used in parallel as the main force for straightening. These two hydraulic systems are fixed on the hydraulic cylinder mounting base, which is placed on the support base plate. Hydraulic pipe supports are installed at various points along the excessively long hydraulic pipeline of the stretching hydraulic cylinder. The stretching hydraulic rods of the two hydraulic systems are connected together by a connecting block. There is a circular connector in the middle of the connecting block. The connector is connected to the main frame and welded to the support slide, ensuring that the hydraulic rod moves back and forth with the main frame to complete the straightening of the ultra-large cross-section aluminum profile. Two symmetrically distributed hydraulic clamping mechanisms are set at the top and bottom of the main frame. The bottom of the main frame is welded to the support slide and placed on the bottom rail. Limit blocks are installed on both sides to ensure that the support slide and the bottom rail are tightly connected and can move back and forth accurately. The bottom of the bottom rail is bolted to the pre-embedded underground steel bars.

[0009] The beneficial effects of this invention are as follows: It provides a completely new method for straightening ultra-large cross-section aluminum profiles, overcoming the drawback of the past method where the maximum straightened width of aluminum profiles was only 0.8 meters. This device can increase the maximum straightened width of aluminum profiles to 1.2 meters. The straightening power system adopts a hydraulic dual-cylinder combined drive, which can greatly increase the pulling force to twice the original value, ensuring that the maximum straightened width of the aluminum profile is increased from 0.8 meters to 1.2 meters. The aluminum profile clamping method has been changed from the past method where the bottom surface was fixed and the top surface was pressed downwards, to a bidirectional pressure method where the bottom surface can be pressed upwards and the top surface can be pressed downwards. This allows the device to be tightly fixed to the aluminum profile, thus successfully completing the straightening task of ultra-large cross-section aluminum profiles. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is the front view of this utility model;

[0012] Figure 3 This is a side view of the present invention. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings:

[0014] As shown in the figure, 1 is the support base plate, 2 is the hydraulic cylinder fixing seat, 3 is the tension hydraulic cylinder, 4 is the hydraulic pipe support, 5 is the tension hydraulic controller, 6 is the steel hydraulic pipeline, 7 is the tension hydraulic rod, 8 is the connecting plate, 9 is the clamping hydraulic controller, 10 is the clamping hydraulic cylinder, 11 is the upper clamping plate, 12 is the lower clamping plate, 13 is the bottom rail, 14 is the limit block, 15 is the support slide, and 16 is the main frame.

[0015] The support base plate 1 is made of 10mm thick steel plate, welded into a rectangular structure, and filled with cement to increase its weight and improve the stability of the overall mechanism. A fixed seat, a tension hydraulic controller, and a hydraulic pipe support are mounted on it. The support base plate tightly connects all the important components working at the tension end, ensuring that the device can stably output tension power.

[0016] Hydraulic cylinder mounting base 2, made of 10mm thick steel plate, consists of two symmetrically distributed mounting bases. Its bottom is welded into a rectangle, and its top is welded into a concave semi-cylindrical structure. The bottom is welded to the supporting base plate, and the top semi-circular position holds the tension hydraulic cylinder. The cylindrical structure of the hydraulic cylinder fits perfectly with the mounting base, and all connecting parts are fully welded to ensure stable output of tensioning power from the hydraulic device.

[0017] The tension hydraulic cylinder 3 is the power output part of the entire device. There are two of them, symmetrically distributed, and they are directly welded to the hydraulic cylinder mounting base. A tension hydraulic rod is installed at the front of the cylinder, and steel hydraulic oil pipes are installed at the top front and the rear. Through the automatic control of the tension hydraulic controller, the entire system can be linked to achieve the straightening of ultra-large cross-section aluminum profiles.

[0018] Hydraulic pipe support 4, made of steel, stands on the support base plate and has a round hole at the top to allow the steel hydraulic pipes to pass through. Because the hydraulic cylinder of this device is too large and the hydraulic pipes too long, ordinary rubber hydraulic pipes cannot withstand such high pressure values. Forcing its use would risk pipe rupture. Therefore, steel hydraulic pipe supports are used, requiring additional support and protection. Two hydraulic pipe supports are installed in the front hydraulic pipe direction, and one hydraulic pipe support is installed in the rear hydraulic pipe direction.

[0019] There are two tension hydraulic controllers, each controlling a separate hydraulic system, enabling power conversion for forward and backward movement. The bottom of the tension hydraulic controller is mounted on the support base plate, and the top is connected to the hydraulic oil pipes.

[0020] The steel hydraulic pipeline 6 connects to the tail and front interfaces of the tension hydraulic cylinder, responsible for the supply and discharge of hydraulic oil. This enables the hydraulic pressure to drive the tension hydraulic rod forward and backward. The middle section connects evenly to the top circular hole of the hydraulic pipe support. Compared to traditional rubber-reinforced pipelines, this steel hydraulic pipeline can withstand much higher oil pressure. Its steel structure ensures that the hydraulic oil will not deform during transmission, guaranteeing effective and stable system operation. When used with the hydraulic pipe support, it provides stronger resistance to deformation, ensuring greater safety and reliability.

[0021] The tension hydraulic rod 7 is nested within the tension hydraulic cylinder at its tail. Its head is machined into a convex shape with a central hole. It connects to the concave steel plates (with central holes) on both sides of the connecting plate via round pins, enhancing the connection's tightness. A square body is distributed in the middle of the tension hydraulic rod, its bottom overlapping the top surface of the support slide to ensure overall stability. There are two tension hydraulic rods in total, directly transmitting tension force. The power conversion between forward and backward movement enables this device to perform tensioning work on ultra-large cross-section aluminum profiles.

[0022] Connecting plate 8 is welded from steel plates and has a U-shaped structure. Its central part is connected to the main frame via a circular connector, its two sides are connected to the tension hydraulic rods via pin holes, and its bottom is welded to the support slide. Its main function is to connect the tension hydraulic rods, the main frame, and the support slide into a unified whole, enabling the entire system to operate in conjunction. The connecting plate withstands enormous tensile forces during operation; therefore, it is made of 30mm thick steel plate to ensure it can withstand these forces.

[0023] The clamping hydraulic controller 9 is located in two symmetrical locations, one above the other, controlling two separate hydraulic systems to achieve power conversion for upward and downward movement. The bottom of the clamping hydraulic controller is mounted on the main frame, and the top is connected to the hydraulic oil pipes.

[0024] The clamping hydraulic cylinder 10 is the power output component for clamping ultra-large cross-section aluminum profiles. There are two of them, symmetrically distributed, and they are directly mounted on the main frame. The connection parts require full welding. A hydraulic rod is installed at the front of the cylinder, which is connected to the upper and lower clamping plates through a pin hole structure. The top front and rear are respectively installed with steel hydraulic oil pipes. Through the automatic control of the hydraulic controller, the entire system can achieve upward and downward linkage to realize the clamping work of ultra-large cross-section aluminum profiles.

[0025] The upper clamping plate 11 is made of 30mm thick steel plate. One side is connected to the hydraulic rod of the clamping hydraulic cylinder via a pin hole structure, while the other side has a transverse serrated structure (10mm high). It is positioned by an outer sleeve, which restricts its movement in four directions: forward, backward, left, and right. This outer sleeve is made of 10mm thick steel plate and welded to the upper side of the main frame to ensure that the upper clamping plate can move up and down under the action of the hydraulic rod, thus working with the lower clamping plate to complete the clamping of the extra-large cross-section aluminum profile.

[0026] The lower clamping plate 12 is made of 30mm thick steel plate. One side is connected to the hydraulic rod of the clamping hydraulic cylinder via a pin hole structure, while the other side has a transverse serrated structure (10mm high). It is positioned by an outer sleeve, which restricts its movement in four directions: forward, backward, left, and right. This outer sleeve is made of 10mm thick steel plate and welded to the lower side of the main frame to ensure that the lower clamping plate can move vertically under the action of the hydraulic rod, thus working in conjunction with the upper clamping plate to complete the clamping of the extra-large cross-section aluminum profile.

[0027] The bottom track 13 is welded from steel plates. A supporting slide is placed on top of it, and the bottom is bolted to the pre-embedded underground reinforcing bars. The top two sides overlap with limiting blocks. The bottom track allows the various systems it carries to move forward and backward, thus enabling the straightening of the oversized aluminum profile. The top surface of the bottom track bears the enormous weight of the upper structure and is welded from 30mm thick steel plates, while the remaining parts are welded from 20mm thick steel plates.

[0028] Limiting block 14 is made of steel and has four sets symmetrically distributed on both sides of each support slide. It is tightly connected to the support slide by five bolts. Its bottom is engaged with the bottom track. The limiting block allows the support slide to move freely back and forth on the bottom track. The symmetrical distribution of the limiting block on both sides can restrict the left and right movement of the support slide, so there is no need to worry about the danger of derailment.

[0029] There are two support slides (15 in total), symmetrically distributed, welded from 10mm thick steel plates. Each slide has eight sets of rollers at its bottom, directly contacting the bottom track, enabling movement. The main frame and connecting plate are connected to it, with all joints fully welded. Each support slide has four evenly distributed limit blocks on each side, each block connected to the support slide by five bolts. These limit blocks ensure a tight connection between the support slide and the bottom track, preventing derailment.

[0030] The main frame (16) is made of 10mm thick steel plate. Its bottom is welded to the support slide, and its rear is fixed to the connecting plate via a circular connector. A clamping hydraulic device (hydraulic cylinder + hydraulic rod + hydraulic controller + clamping plate) is symmetrically distributed on its upper and lower sides. This device can simultaneously move the upper and lower clamping plates inward, thereby completing the clamping operation for the extra-large cross-section aluminum profile.

Claims

1. A straightening device for ultra-large cross-section aluminum profiles with a width of 1.2 meters, characterized in that: Two large hydraulic systems are used in parallel as the main force for straightening. These two hydraulic systems are fixed on hydraulic cylinder mounting bases, which are placed on the support base plate. Hydraulic pipe supports are installed at various points along the length of the hydraulic pipeline of the stretching hydraulic cylinder. The stretching hydraulic rods of the two hydraulic systems are connected together by connecting blocks. There is a circular connector in the middle of the connecting block. The connector is connected to the main frame and welded to the support slide, ensuring that the hydraulic rod moves back and forth with the main frame to complete the straightening of the large cross-section aluminum profile. Two symmetrically distributed hydraulic clamping mechanisms are set at the top and bottom of the main frame. The bottom of the main frame is welded to the support slide and placed on the bottom rail. Limit blocks are installed on both sides to ensure that the support slide and the bottom rail are tightly connected and can move back and forth accurately. The bottom of the bottom rail is bolted to the pre-embedded underground steel bars.

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