Automatic square steel turning machine and turning method thereof

Abstract

The application discloses a square steel automatic turning machine and a turning method thereof, and belongs to the technical field of metal material processing auxiliary equipment. The square steel automatic turning machine comprises a workbench, two pushing mechanisms, a rotating mechanism, two lifting mechanisms and two operation supports. The two pushing mechanisms are used for driving the rotating mechanism to move towards the direction of the end of the square steel to be clamped or to move away from the direction of the end of the square steel to be clamped. The rotating mechanism is used for clamping the end of the square steel and driving the square steel to rotate around the axis of the square steel. The two lifting mechanisms are used for lifting or lowering the square steel. The two operation supports are used for supporting and placing the square steel. An electrical control system is used for controlling the coordinated action of the mechanisms according to a predetermined program, so that the automatic turning of the square steel is realized. The application solves the problems of low efficiency, great safety hazards and high labor intensity of the traditional overhead crane manual turning, realizes the automation, precision and safety of the turning operation, significantly improves the turning efficiency and operation safety, reduces the labor intensity, and can be integrated with an automatic polishing machine to form a continuous automatic production line.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment for metal material processing, specifically to an automatic square steel turning machine and its turning method, which is particularly suitable for special equipment to achieve automatic turning of square steel billets during the surface or corner grinding process. Background Technology

[0002] In the production process of special steel bars and wire rods, square steel billets need to be ground on their surfaces and edges to remove defects. After grinding one surface or edge, the square steel needs to be flipped to the next surface or edge to be ground. Currently, the common method is to use an overhead crane (bridge crane) to lift the square steel and manually assist in flipping it. This method has significant drawbacks: First, it is inefficient, requiring the use of an overhead crane, manual hooking, and straightening for each flip, which is time-consuming; second, it poses significant safety hazards, as the overhead crane is prone to swaying when lifting heavy objects, and close-range manual operation can easily lead to injuries such as crushing and collisions; third, it is labor-intensive, requiring high levels of experience and physical strength from personnel; finally, this operation has become a bottleneck restricting the automation and continuous operation of the grinding production line. Therefore, there is an urgent need for a specialized device that can automatically, safely, and efficiently complete the flipping of square steel. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic square steel turning machine and its turning method, so as to solve the problems of low efficiency, poor safety, high labor intensity and low degree of automation caused by relying on overhead cranes and manual labor for square steel turning in the prior art.

[0004] An automatic square steel turning machine, comprising: A workbench, the workbench including a base 1 and a table surface 2 fixed on the base 1; Two propulsion mechanisms 3 are symmetrically installed at the left and right ends of the platform 2, and are used to drive the rotating mechanism 4 to move or move away from the end of the square steel to be clamped by it. Rotation mechanism 4, mounted on the propulsion mechanism 3, is used to clamp the end of the square steel and drive the square steel to rotate around its own axis. Two lifting mechanisms 5 are symmetrically arranged between two propulsion mechanisms 3, and are used to lift or lower the square steel. Two operating supports 6 are symmetrically arranged on the platform 2 between the two propulsion mechanisms 3 to support the placement of square steel. The electrical control system 9 is communicatively connected to the propulsion mechanism 3, the rotation mechanism 4 and the lifting mechanism 5, and is used to control each mechanism to work together in a predetermined program to realize the automatic flipping of the square steel.

[0005] The lifting mechanism 5 includes a servo electric cylinder, and the push rod end of the servo electric cylinder is provided with a lifting block 7.

[0006] The operating support 6 includes a top placement block. Both the placement block and the lifting block 7 are provided with right-angled V-shaped placement grooves a for placing square steel workpieces. The two side walls of the right-angled V-shaped placement groove a have an angle of 45° with the horizontal plane. Right-angled V-shaped grooves b are symmetrically opened on the two side walls of the right-angled V-shaped placement groove a. One side wall of the right-angled V-shaped groove b has an angle of 90° with the horizontal plane, and the other side wall has an angle of 0° with the horizontal plane.

[0007] The propulsion mechanism 3 includes a servo motor, a ball screw driven by the servo motor, and a sliding seat driven by the ball screw.

[0008] The rotating mechanism includes an active rotating mechanism and a passive rotating mechanism; The active rotation mechanism includes a mounting base fixed to a sliding seat of one of the propulsion mechanisms 3, and a servo motor, bearing seat and clamping structure fixed to the mounting base; The passive rotation mechanism includes a mounting base fixed to a sliding seat of another propulsion mechanism 3, and a bearing seat and a clamping structure fixed to the mounting base.

[0009] The clamping structure includes a rotating shaft, a connecting plate, and clamping components; The rotating shaft is horizontally mounted on the bearing seat, and one end of the rotating shaft is fixedly connected to the clamping component through a connecting plate and bolts; The other end of the rotating shaft of the active rotating mechanism is connected to the output shaft of the servo motor via a coupling; The clamping component of the passive rotation mechanism is collinear with the clamping component of the active rotation mechanism.

[0010] The method for turning square steel using an automatic turning machine includes the following steps: S1: Place the square steel workpiece 8, which has been polished on one side, on the operating support 6; S2: Control the lifting mechanism 5 to move, so that the lifting block 7 rises and lifts the square steel workpiece 8 from the operating support 6 to the predetermined height; S3: Control the propulsion mechanism 3 to move the rotation mechanism 4 toward the end of the square steel workpiece 8, so that the end of the square steel workpiece 8 is inserted into and clamped in the clamping part of the rotation mechanism 4. S4: Control the lifting mechanism 5 to descend so that the square steel workpiece 8 is completely supported by the rotating mechanism 4; S5: Control the rotation mechanism 4 to drive the clamped square steel workpiece 8 to rotate around its own axis by a predetermined angle. S6: Control the lifting mechanism 5 to operate again, slightly lifting the square steel workpiece 8; S7: Control the propulsion mechanism 3 to reverse its movement, so that the rotating mechanism 4 separates from the end of the square steel 8; S8: Control the lifting mechanism 5 to descend, place the square steel workpiece 8 on the operating support 6, and complete the flipping; S9: All mechanisms of the equipment are reset, awaiting the next instruction.

[0011] The predetermined angle mentioned in step S5 includes 90 degrees, 45 degrees, or 180 degrees; when the square steel workpiece is flipped between adjacent planes, it rotates 90 degrees; when the square steel is flipped between opposite corners, it rotates 180 degrees; when the square steel is flipped between opposite planes and corners, it rotates 45 degrees.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. High efficiency and automation: Through automatic program control, the square steel can be flipped in a very short time, which is much faster than the traditional overhead crane combined with manual operation, greatly improving the overall operation efficiency of the grinding line.

[0013] 2. Intrinsically safe: Operators do not need to enter the equipment's operating area and can complete all operations through remote control or automatic programs, eliminating the safety risks of lifting injuries and mechanical crushing.

[0014] 3. Reduce labor intensity: Free workers from heavy and repetitive physical labor, allowing them to perform only monitoring and auxiliary operations, effectively reducing labor intensity.

[0015] 4. High precision and reliability: The servo drive system and precision transmission components ensure accurate control of the flipping angle and position, high repeatability, which helps to ensure the quality of subsequent grinding and makes the equipment run stably and reliably.

[0016] 5. Promote production line automation: This equipment can be used as an auxiliary unit for loading and unloading automatic grinding machines and can be seamlessly integrated into automated grinding production lines. It is an important component in realizing "unmanned" or "less manned" smart workshops.

[0017] In summary, this invention, through the coordinated actions of various mechanisms, can automatically complete a series of flipping operations, including picking up, lifting, rotating, and placing square steel, and achieve automatic switching between flat and edge grinding positions. It solves the problems of low efficiency, significant safety hazards, and high labor intensity associated with traditional manual flipping using overhead cranes, achieving automation, precision, and safety in flipping operations. This significantly improves flipping efficiency and operational safety, reduces labor intensity, and can be integrated with automatic grinding machines to form a continuous automated production line. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the present invention; Figure 2This is a top view of the present invention; Figure 3 yes Figure 1 A magnified view of a portion at point A; Figure 4 This is a schematic diagram of the structure of the placement block and lifting block of the operating support of the present invention; Figure 5 This is a schematic diagram of the state of the placement block and lifting block of the operating support of the present invention when supporting the square steel. In the diagram: 1 - base; 2 - platform; 3 - propulsion mechanism; 4 - rotation mechanism; 5 - lifting mechanism; 6 - operating support; 7 - lifting block; 8 - square steel workpiece; 9 - electrical control cabinet. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Example 1 like Figure 1-5 As shown, this embodiment discloses an automatic square steel turning machine, comprising: A workbench is constructed by welding a base 1 made of shaped steel and a thick steel plate tabletop 2. Two propulsion mechanisms 3 are mounted on the table surface 2 of the worktable along the Y-axis. The two propulsion mechanisms 3 are symmetrically mounted at the left and right ends of the table surface 2. They are used to drive the rotating mechanism 4 to move or move away from the end of the square steel workpiece to be clamped by it, thereby sending the end of the square steel workpiece into or out of the rotating clamping position. The propulsion mechanism 3 includes a servo motor, a ball screw driven by the servo motor, and a sliding seat driven by the ball screw.

[0023] The rotating mechanism 4 is mounted on the pushing mechanism 3 and is used to clamp the end of the square steel and drive the square steel to rotate around its own axis; the rotating mechanism 4 includes an active rotating mechanism and a passive rotating mechanism. The active rotation mechanism includes a mounting base fixed to a sliding seat of one of the propulsion mechanisms 3, and a servo motor, bearing seat and clamping structure fixed to the mounting base; The passive rotation mechanism includes a mounting base fixed to a sliding seat of another propulsion mechanism 3, and a bearing seat and a clamping structure fixed to the mounting base.

[0024] The clamping structure includes a rotating shaft, a connecting plate, and a clamping component. In this embodiment, the clamping component is a commercially available standard square tube or a self-made square tube. The rotating shaft is horizontally mounted on the bearing seat, and one end of the rotating shaft is fixedly connected to the clamping component through the connecting plate and bolts. The other end of the rotating shaft of the active rotating mechanism is connected to the output shaft of the servo motor through a coupling. The clamping component of the passive rotating mechanism and the clamping component of the active rotating mechanism are collinear.

[0025] Two lifting mechanisms 5 are symmetrically arranged between two pushing mechanisms 3. They are used to lift the square steel workpiece from the operating support 6 during the flipping process, aligning its center with the rotating mechanism, or to accurately place the square steel onto the operating support 6 during lowering. Each lifting mechanism 5 includes a servo electric cylinder, and the push rod end of the servo electric cylinder is equipped with a lifting block 7. The servo electric cylinder has the advantages of large lifting force (up to 500 kg), precise control, and compact structure.

[0026] Two operating supports 6 are symmetrically arranged on the platform 2 between the two propulsion mechanisms 3 to support the placement of square steel. like Figure 4-5As shown, the operating support 6 includes a fixed block and a placement block on top of it. Both the placement block and the lifting block 7 are provided with right-angled V-shaped placement grooves a. The two side walls of each right-angled V-shaped placement groove a form an angle of 45° with the horizontal plane, providing support when grinding the edges of the square steel. Symmetrically, right-angled V-shaped grooves b are formed on the two side walls of each right-angled V-shaped placement groove a. One side wall of each right-angled V-shaped groove b forms an angle of 90° with the horizontal plane, and the other side wall forms an angle of 0° with the horizontal plane. The two symmetrical right-angled V-shaped grooves b support two adjacent edges of the square steel, thus providing support when grinding the surface of the square steel.

[0027] The electrical control system 9 integrates a control unit including a programmable logic controller (PLC) and supports fully automatic operation mode and manual remote control mode. It is communicatively connected to the propulsion mechanism 3, the rotating mechanism 4, and the lifting mechanism 5 to control the coordinated operation of each mechanism according to a predetermined program, thereby realizing the automatic flipping of the square steel.

[0028] The turning method of the automatic square steel turning machine includes the following steps: Initial state: The square steel workpiece 8 with one surface polished is placed on the operating support 6, and each mechanism is in its initial position; Lifting: The electrical control system commands the lifting mechanism 5 to move, causing its push rod and the lifting block 7 on it to rise, so as to smoothly lift the square steel workpiece 8 from the operating support 6 by about 150mm; Clamping and docking: The control system commands the propulsion mechanism 3 to move, driving the rotation mechanism 4 to move along the Y-axis to the end of the square steel workpiece 8, so that the two ends of the square steel workpiece 8 are respectively inserted into and clamped and fixed in the clamping parts of the active rotation mechanism and the passive rotation mechanism; Handover between mechanisms: The electrical control system commands the lifting mechanism 5 to descend to the lowest point, so that the square steel workpiece 8 is completely supported by the rotating mechanism 4; Execute the flip: The electrical control system commands the servo motor of the rotating mechanism 4 to start, driving the clamped square steel workpiece 8 to rotate precisely 90 degrees around its own axis; Secondary lifting: The electrical control system instructs the lifting mechanism 5 to rise again, slightly lifting the square steel workpiece 8; Disengagement and Reset: Control the propulsion mechanism 3 to retract to its original position along the Y-axis, so that the rotation mechanism 4 separates from the end of the square steel workpiece 8; Placement complete: Control the lifting mechanism 5 to slowly descend and precisely place the square steel workpiece 8, which has been rotated 90 degrees, onto the operating support 6, completing the flipping. All mechanisms of the equipment reset, awaiting the next instruction. The process is complete; the grinding machine can then be notified to begin grinding the top surface.

[0029] When the square steel workpiece 8 is flipped between adjacent planes, it rotates 90 degrees; when the square steel workpiece is flipped between opposite corners, it rotates 180 degrees; when the square steel workpiece is flipped between opposite planes and corners, it rotates 45 degrees.

Claims

1. An automatic square steel turning machine, characterized in that, include: The workbench includes a base (1) and a table surface (2) fixed on the base (1). Two propulsion mechanisms (3) are symmetrically installed at the left and right ends of the platform (2) to drive the rotating mechanism (4) to move or move away from the end of the square steel to be clamped by it. The rotating mechanism (4) is mounted on the pushing mechanism (3) and is used to clamp the end of the square steel and drive the square steel to rotate around its own axis; Two lifting mechanisms (5) are symmetrically arranged between two propulsion mechanisms (3) for raising or lowering square steel. Two operating supports (6) are symmetrically arranged on the platform (2) between the two propulsion mechanisms (3) to support the placement of square steel. The electrical control system (9) is connected in communication with the propulsion mechanism (3), the rotation mechanism (4) and the lifting mechanism (5) to control each mechanism to work together in a predetermined program to achieve automatic flipping of the square steel.

2. The automatic square steel turning machine according to claim 1, characterized in that, The lifting mechanism (5) includes a servo electric cylinder, and the push rod end of the servo electric cylinder is provided with a lifting block (7).

3. The automatic square steel turning machine according to claim 2, characterized in that, The operating support (6) includes a top placement block. Both the placement block and the lifting block (7) are provided with right-angled V-shaped placement grooves a. The two side walls of the right-angled V-shaped placement grooves a are at an angle of 45° to the horizontal plane. Right-angled V-shaped grooves b are symmetrically opened on the two side walls of the right-angled V-shaped placement grooves a. One side wall of the right-angled V-shaped groove b is at an angle of 90° to the horizontal plane, and the other side wall is at an angle of 0° to the horizontal plane.

4. The automatic square steel turning machine according to claim 1, characterized in that, The propulsion mechanism (3) includes a servo motor, a ball screw driven by the servo motor, and a sliding seat driven by the ball screw.

5. The automatic square steel turning machine according to claim 4, characterized in that, The rotating mechanism includes an active rotating mechanism and a passive rotating mechanism; The active rotation mechanism includes a mounting base fixed on a sliding seat of one of the propulsion mechanisms (3), and a servo motor, bearing seat and clamping structure fixed on the mounting base; The passive rotation mechanism includes a mounting base fixed to a sliding seat of another propulsion mechanism (3), and a bearing seat and a clamping structure fixed to the mounting base.

6. The automatic square steel turning machine according to claim 5, characterized in that, The clamping structure includes a rotating shaft, a connecting plate, and clamping components; The rotating shaft is horizontally mounted on the bearing seat, and one end of the rotating shaft is fixedly connected to the clamping component through a connecting plate and bolts; The other end of the rotating shaft of the active rotating mechanism is connected to the output shaft of the servo motor via a coupling; The clamping component of the passive rotation mechanism is collinear with the clamping component of the active rotation mechanism.

7. A method for turning square steel using an automatic turning machine according to any one of claims 1-6, characterized in that, Includes the following steps: S1: Place the square steel workpiece (8) with one surface polished on the operating support (6); S2: Control the lifting mechanism (5) to move, so that the lifting block (7) rises and lifts the square steel workpiece (8) from the operating support (6) to the predetermined height; S3: Control the propulsion mechanism (3) to move and drive the rotation mechanism (4) to move towards the end of the square steel workpiece (8), so that the end of the square steel workpiece (8) is inserted into and clamped in the clamping part of the rotation mechanism (4); S4: Control the lifting mechanism (5) to descend so that the square steel workpiece (8) is completely supported by the rotating mechanism (4); S5: Control the rotation mechanism (4) to drive the clamped square steel workpiece (8) to rotate around its own axis by a predetermined angle. S6: Control the lifting mechanism (5) to operate again, and slightly lift the square steel workpiece (8); S7: Control the propulsion mechanism (3) to reverse its movement, so that the rotation mechanism (4) separates from the end of the square steel workpiece (8); S8: Control the lifting mechanism (5) to descend, place the square steel workpiece (8) on the operating support (6) to complete the flipping; S9: All mechanisms of the equipment are reset, awaiting the next instruction.

8. The method for turning square steel using an automatic turning machine according to claim 7, characterized in that, The predetermined angle mentioned in step S5 includes 90 degrees, 45 degrees, or 180 degrees; when the square steel workpiece is flipped between adjacent planes, it rotates 90 degrees; when the square steel workpiece is flipped between opposite corners, it rotates 180 degrees; when the square steel workpiece is flipped between opposite planes and corners, it rotates 45 degrees.

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