Automatic production line for U-shaped steel

Abstract

The utility model relates to a U-shaped steel automatic production line which comprises a control unit, a feeding unit, a pulse preheating unit, a numerical control shaping unit, a finished product online detection unit and a harmonic crystallization unit. According to the utility model, the functions of automatic feeding, code printing, pulse preheating, numerical control shaping, inspection, material distribution, harmonic crystallization and the like can be met, and the device has outstanding advantages in efficiency and product consistency. The automatic production line is high in automation degree, the man-machine interaction mode is simple and convenient, the labor intensity of operators can be greatly reduced, and the product quality consistency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to an automated production line for U-shaped steels of bridge structure accessories. Background Art

[0002] my country's seismic design code stipulates that in order to prevent longitudinal and transverse beam drop, anti-falling beam structures such as blocks, anchor bolts and steel brackets are often used. The existing anti-falling beam measures are to set brittle concrete blocks at a certain distance from the beam body, so as to control the transverse and longitudinal displacement of the beam body within a certain range; the disadvantage of this measure is that the beam body will collide with the blocks under the action of an earthquake, and when a high-intensity earthquake strikes, the brittle concrete blocks are prone to brittle shear failure and fail, resulting in bridge beam drop damage, and when the brittle concrete blocks need to be replaced due to failure, it is not easy to operate.

[0003] Therefore, a new U-shaped steel anti-falling beam device was developed to overcome the above defects. At present, the U-shaped steel production process has a low degree of automation, and each process requires deep participation of personnel and is relatively independent, including unloading, steel plate heating, bending after heating, inspection, coding, stacking and transportation. Manual operation of these links is not only inefficient but also poses great safety risks.

[0004] In summary, the most economical, safe and efficient way to deal with the production of U-shaped steel anti-drop beams is to design and manufacture a flexible production line for U-shaped anti-drop beams, which can meet the processes and workstation functions from automatic loading, coding, pulse preheating, CNC shaping, inspection, material separation and harmonic crystallization, and has outstanding advantages in efficiency and product consistency. Utility Model Content

[0005] In order to solve the above problems, the utility model provides an efficient and reliable U-shaped steel automatic production line to solve the technical problems of production efficiency and product consistency.

[0006] The technical solution adopted by the utility model is: an automatic production line for U-shaped steel, characterized in that: it comprises a control unit, and a feeding unit, a pulse preheating unit, a CNC shaping unit, a finished product online detection unit and a harmonic crystallization unit arranged in sequence from front to back along the production line; the feeding unit comprises a first roller, and a feeding three-axis manipulator and a blank visual detection system arranged beside the first roller;

[0007] The U-shaped steel billet is conveyed to the working range of the loading three-axis manipulator through the first roller path. The loading three-axis manipulator hoists the U-shaped steel billet to the second roller path of the connected pulse preheating unit; the second roller path conveys the billet to the position of the vision inspection system for photographing. The qualified U-shaped steel billets are conveyed backward through the second roller path, and the unqualified U-shaped steel billets are sent back; the qualified U-shaped steel billets are conveyed to the pulse preheating unit through the second roller path for heating. The heated U-shaped steel billets are subjected to forming processing by the numerical control shaping unit; after forming, the U-shaped steel is grabbed and placed into the finished product in-line inspection unit for inspection. If the inspected product is qualified, it is conveyed to the harmonic crystallization unit for annealing, and after heat treatment, it is conveyed to the end of the line and loaded into the material box to complete the production process; if the inspected product is unqualified, it is rejected.

[0008] Preferably, the pulse preheating unit includes a second roller path, and a coding system, a pulse preheating system and a three-axis manipulator arranged beside the second roller path. After the U-shaped steel billet is photographed by the vision inspection system and compared with the theoretical model, the qualified U-shaped steel billets are coded by the coding system and then conveyed to the pulse preheating system through the second roller path for heating. The heated U-shaped steel billets are placed on the numerical control shaping machine of the numerical control shaping unit by the three-axis manipulator.

[0009] Preferably, the second roller path is slightly higher than the first roller path.

[0010] Preferably, the numerical control shaping unit includes a numerical control shaping machine and a mold. The U-shaped steel billet heated by the pulse preheating unit is placed on the numerical control shaping machine, and the numerical control shaping machine drives the mold to form the U-shaped steel billet.

[0011] Preferably, it further includes a cleaning robot for cleaning the numerical control shaping machine and the mold.

[0012] Preferably, the finished product in-line inspection unit includes a vision system, a clamping tooling, a first six-axis robot and a third roller path. The U-shaped steel formed by the numerical control shaping unit is grabbed and placed on the clamping tooling by the first six-axis robot and inspected by the vision system. If the inspection is qualified, it is re-grabbed by the first six-axis robot and conveyed to the harmonic crystallization unit for annealing treatment; if the inspected product is unqualified, it is re-grabbed by the first six-axis robot and placed on the third roller path for rejection.

[0013] Preferably, the harmonic crystallization unit includes a harmonic crystallization heat treatment system, a fourth roller path and a second six-axis robot. The U-shaped steel qualified by the finished product in-line inspection unit is conveyed to the harmonic crystallization heat treatment system for annealing. After heat treatment, it is conveyed to the end of the line by the fourth roller path and grabbed and loaded into the material box by the second six-axis robot to complete the production process.

[0014] The beneficial effects achieved by the present utility model are as follows: The automation production line has a high degree of automation, high production efficiency, and a simple human-machine interaction mode, which can greatly reduce the labor intensity of operators and improve the consistency of product quality. Description of the Drawings

[0015] Figure 1-2 It is the layout plan of the U-shaped steel automatic production line of the present utility model;

[0016] In the figure: 1 - Loading unit; 1.1 - First roller conveyor; 1.2 - Loading three-axis manipulator; 1.3 - Vision inspection system; 2 - Pulse preheating unit; 2.1 - Second roller conveyor; 2.2 - Coding system; 2.3 - Pulse preheating system; 2.4 - Three-axis manipulator; 3 - Numerical control shaping unit; 3.1 - Numerical control shaping machine; 3.2 - Mold; 3.3 - Cleaning robot; 4 - Finished product on-line inspection unit; 4.1 - Vision system; 4.2 - Clamping tooling; 4.3 - First six-axis robot; 4.4 - Third roller conveyor; 5 - Harmonic crystallization unit; 5.1 - Harmonic crystallization heat treatment system; 5.2 - Fourth roller conveyor; 5.3 - Second six-axis robot; 6 - Control unit. Specific Embodiments

[0017] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0018] As Figure 1-2 shown, an automatic production line for U-shaped steel of the present utility model includes a loading unit 1, a pulse preheating unit 2, a numerical control shaping unit 3, a finished product on-line inspection unit 4, a harmonic crystallization unit 5, and a control unit 6. The loading unit 1, the pulse preheating unit 2, the numerical control shaping unit 3, the finished product on-line inspection unit 4, and the harmonic crystallization unit 5 are arranged in sequence from front to back along the automatic production line. The control unit 6 is used to control and coordinate the movements of the loading unit 1, the pulse preheating unit 2, the numerical control shaping unit 3, the finished product on-line inspection unit 4, and the harmonic crystallization unit 5.

[0019] In this embodiment, the loading unit 1 includes a first roller path 1.1, a loading three-axis manipulator 1.2 and a blank visual inspection system 1.3 arranged beside the first roller path 1.1; the U-shaped steel blank is conveyed to the working range of the loading three-axis manipulator 1.2 through the first roller path 1.1, and the loading three-axis manipulator 1.2 hoists the U-shaped steel blank to the second roller path 2.1 of the connected pulse preheating unit 2; the second roller path 2.1 conveys the blank to the position of the visual inspection system 1.3 for photographing, the qualified U-shaped steel blanks are conveyed backward through the second roller path 2.1, and the unqualified U-shaped steel blanks are sent back; the qualified U-shaped steel blanks are conveyed to the pulse preheating unit 2 through the second roller path 2.1 for heating, and the heated U-shaped steel blanks are subjected to forming processing by the numerical control shaping unit 3; after forming, the U-shaped steel is grasped and placed on the finished product on-line inspection unit 4 for inspection. If the inspected product is qualified, it is conveyed to the harmonic crystallization unit 5 for annealing, and after heat treatment, it is conveyed to the end of the line and loaded into a frame to complete the production process; if the inspected product is unqualified, it is rejected.

[0020] In this embodiment, the pulse preheating unit 2 includes a second roller path 2.1, a coding system 2.2, a pulse preheating system 2.3 and a three-axis manipulator 2.4 arranged beside the second roller path 2.1. After the U-shaped steel blank is photographed by the visual inspection system 1.3 and compared with the theoretical model, the qualified U-shaped steel blanks are coded by the coding system 2.2 and then conveyed to the pulse preheating system 2.3 through the second roller path 2.1 for heating. The heated U-shaped steel blanks are placed on the numerical control shaping machine 3.1 of the numerical control shaping unit 3 by the three-axis manipulator 2.4.

[0021] In this embodiment, the numerical control shaping unit 3 includes a numerical control shaping machine 3.1, a mold 3.2 and a cleaning robot 3.3. The U-shaped steel blank heated by the pulse preheating unit 2 is placed on the numerical control shaping machine 3.1, and the numerical control shaping machine 3.1 drives the mold 3.2 to form the U-shaped steel blank; the cleaning robot 3.3 is used to clean the numerical control shaping machine 3.1 and the mold 3.2.

[0022] In this embodiment, the finished product on-line inspection unit 4 includes a vision system 4.1, a clamping tooling 4.2, a first six-axis robot 4.3 and a third roller path 4.4. After the U-shaped steel formed by the numerical control shaping unit 3, the first six-axis robot 4.3 grasps and places the U-shaped steel on the clamping tooling 4.2, and it is inspected by the vision system 4.1. If the inspection is qualified, it is re-grasped by the first six-axis robot 4.3 and conveyed to the harmonic crystallization unit 5 for annealing treatment; if the inspected product is unqualified, it is re-grasped by the first six-axis robot 4.3 and placed on the third roller path 4.4 for rejection.

[0023] In this embodiment, the harmonic crystallization unit 5 includes a harmonic crystallization heating system 5.1, a fourth roller path 5.2, and a second six-axis robot 5.3. The U-shaped steel that has passed the inspection by the finished product on-line inspection unit 4 is conveyed to the harmonic crystallization heat treatment system 5.1 for annealing. After the heat treatment, it is conveyed to the end of the line by the fourth roller path 5.2 and grabbed by the second six-axis robot 5.3 and loaded into a material box to complete the production process.

[0024] During production, the U-shaped steel billet is conveyed to the working range of the loading three-axis manipulator 1.2 through the first roller path 1.1. The loading three-axis manipulator 1.2 uses the end magnetic suction sling to lift the billet to the connected second roller path 2.1, and the second roller path 2.1 is slightly higher than the first roller path 1.1 in position; the second roller path 2.1 conveys the billet to the position of the vision inspection system 1.3 for taking pictures. After taking pictures, it is compared with the theoretical model. The qualified billet is conveyed backward through the second roller path 2.1 of the pulse preheating unit 2, and the unqualified sheet is sent back; after the qualified billet is coded by the coding system 2.2, it is conveyed to the pulse preheating system 2.3 by the second roller path 2.1 for heating. The heated billet is placed on the numerical control shaping machine 3.1 by the three-axis manipulator 2.4 to drive the mold 3.2 for shaping processing; after the U-shaped steel is formed, the U-shaped steel is grabbed by the first six-axis robot 4.3 and placed into the clamping tooling 4.2 of the finished product on-line inspection unit 4 for inspection. If the inspected product is qualified, it is grabbed by the first six-axis robot 4.3 again and placed on the fourth roller path 5.2, and then conveyed to the harmonic crystallization heat treatment system 5.1 for annealing. After the heat treatment, it is conveyed to the end of the line and grabbed by the second six-axis robot 5.3 and loaded into a material box to complete the production process; if the inspected product is unqualified, it is grabbed by the first six-axis robot 4.3 again and placed on the third roller path 4.4 for rejection.

[0025] Here, it should be noted that the description of the above technical solutions is exemplary. This specification can be embodied in different forms and should not be construed as limited to the technical solutions described herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solutions of the present invention are only limited by the scope of the claims.

[0026] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and there can be many variations. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention should be considered to fall within the protection scope of the present invention.

Claims

1. An automated production line for U-shaped steel, characterized in that: It includes a control unit (6), and a loading unit (1), a pulse preheating unit (2), a numerical control shaping unit (3), an on-line finished product inspection unit (4), and a harmonic crystallization unit (5) arranged in sequence from the front to the back along the production line; the loading unit (1) includes a first roller conveyor (1.1), and a loading three-axis manipulator (1.2) and a blank visual inspection system (1.3) arranged beside the first roller conveyor (1.1). The U-shaped steel blank is conveyed by the first roller conveyor (1.1) to the working range of the loading three-axis manipulator (1.2), and the loading three-axis manipulator (1.2) hoists the U-shaped steel blank to the second roller conveyor (2.1) of the connected pulse preheating unit (2); the second roller conveyor (2.1) conveys the blank to the position of the visual inspection system (1.3) for photographing. The qualified U-shaped steel blanks are conveyed backward through the second roller conveyor (2.1), and the unqualified U-shaped steel blanks are sent back; the qualified U-shaped steel blanks are conveyed by the second roller conveyor (2.1) to the pulse preheating unit (2) for heating, and the heated U-shaped steel blanks are subjected to forming processing by the numerical control shaping unit (3); after forming, the U-shaped steel is grabbed and placed into the on-line finished product inspection unit (4) for inspection. If the inspected product is qualified, it is conveyed to the harmonic crystallization unit (5) for annealing, and after heat treatment, it is conveyed to the end of the line and loaded into the material box to complete the production process; if the inspected product is unqualified, it is removed.

2. The U-shaped steel automatic production line according to claim 1, characterized in that: The pulse preheating unit (2) includes a second roller conveyor (2.1), and a coding system (2.2), a pulse preheating system (2.3) and a three-axis manipulator (2.4) arranged beside the second roller conveyor (2.1). After the U-shaped steel blank is photographed by the visual inspection system (1.3) and compared with the theoretical model, the qualified U-shaped steel blanks are coded by the coding system (2.2), and then conveyed by the second roller conveyor (2.1) to the pulse preheating system (2.3) for heating. The heated U-shaped steel blanks are placed on the numerical control shaping machine (3.1) of the numerical control shaping unit (3) by the three-axis manipulator (2.4).

3. The U-shaped steel automatic production line according to claim 2, characterized in that: The second roller conveyor (2.1) is higher in position than the first roller conveyor (1.1).

4. The U-shaped steel automatic production line according to claim 1, characterized in that: The numerical control shaping unit (3) includes a numerical control shaping machine (3.1) and a mold (3.2). The U-shaped steel blank heated by the pulse preheating unit (2) is placed on the numerical control shaping machine (3.1), and the numerical control shaping machine (3.1) drives the mold (3.2) to shape the U-shaped steel blank.

5. The U-shaped steel automatic production line according to claim 4, wherein: It also includes a cleaning robot (3.3) for cleaning the numerical control shaping machine (3.1) and the mold (3.2).

6. The U-shaped steel automatic production line according to claim 1, wherein: The finished product in-line inspection unit (4) includes a vision system (4.1), a clamping tooling (4.2), a first six-axis robot (4.3) and a third roller path (4.4). The U-shaped steel formed by the numerical control shaping unit (3) is grabbed and placed on the clamping tooling (4.2) by the first six-axis robot (4.3) and inspected by the vision system (4.1). If the inspection is qualified, it is grabbed again by the first six-axis robot (4.3) and conveyed to the harmonic crystallization unit (5) for annealing treatment; if the inspected product is unqualified, it is grabbed again by the first six-axis robot (4.3) and placed on the third roller path (4.4) for rejection.

7. The U-shaped steel automatic production line according to claim 1, characterized in that: The harmonic crystallization unit (5) includes a harmonic crystallization heat treatment system (5.1), a fourth roller path (5.2) and a second six-axis robot (5.3). The U-shaped steel qualified by the finished product in-line inspection unit (4) is conveyed to the harmonic crystallization heat treatment system (5.1) for annealing. After heat treatment, it is conveyed to the end of the line by the fourth roller path (5.2) and grabbed by the second six-axis robot (5.3) and loaded into a material box to complete the production process.

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