Horizontal square steel automatic straightening machine

Abstract

The present invention belongs to the technical field of straightening equipment, specifically a horizontal square steel automatic straightening machine, comprising a base and a control cabinet, both ends of the base are equipped with turning tooling and a fixed support, the fixed support is located between the two turning toolings at the two ends, a detection device is installed on the base, the control cabinet controls the operation of the straightening machine, the straightening support comprises a plurality of groups of mutually corresponding side pressure heads and side supports, the side pressure heads and side supports are freely moved along the length direction of the base under the drive of a motor, the side pressure heads are squeezed under the action of a hydraulic cylinder, the detection device detects the side of the square steel, and the straightening support straightens the side of the square steel; the present invention has a simple structure and a high use effect, can effectively improve the effect and efficiency of square steel straightening, and will not cause damage to the surface of the square steel after straightening.

Description

Technical Field

[0001] The invention belongs to the technical field of straightening equipment, in particular to a horizontal square steel automatic straightening machine. Background Art

[0002] The straightening machine is mainly used to straighten the bends of rod-shaped workpieces. Its working principle is to first place the workpiece between two active points of the workbench, drive the workpiece to rotate through the turning tool installed on the workbench, and then use the detection device to detect where the workpiece is bent and the degree of bending. After that, by moving the workbench, the straightening tool is moved to the place where the workpiece is bent, so that the pressure head is directly aligned with the bent position, and then multiple reverse bending is performed to make the workpiece deform in the opposite direction of the bending direction. When the amount of bending is the same as the amount of workpiece rebound, the pressure head can be directly withdrawn to other bent parts for further straightening. Through repeated and multiple straightening, the bent parts of the entire workpiece are completely straightened to achieve the purpose of straightening, thereby ensuring the straightness of the workpiece and facilitating the use of the workpiece.

[0003] Generally, square steel straightening machines are vertically inspected and straightened manually. During the straightening process, the horizontally placed square steel will sag and bend, so the straightness of the square steel cannot be accurately measured, resulting in errors in the detection value and invalid straightening. At the same time, the shapes of the pressure heads used in existing straightening machines are different. The pressure heads have good versatility and can adapt to workpieces of various specifications. However, the contact area between the existing pressure heads and the workpiece is relatively small, which can easily generate greater stress on the part of the workpiece that contacts the pressure head during the straightening process, causing damage to the surface of the workpiece, and even causing depressions on the surface of the workpiece, thereby affecting the subsequent use of the workpiece. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, improve the straightening effect and efficiency, and avoid damage to the workpiece surface during straightening, the present invention proposes a horizontal square steel automatic straightening machine.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the horizontal square steel automatic straightening machine of the present invention comprises a base and a control cabinet, both ends of the base are equipped with turning tooling and fixed supports, the fixed support is located between the two turning toolings at both ends, a detection device is installed on the base, the control cabinet controls the operation of the straightening machine, the straightening support comprises a plurality of groups of corresponding side pressure heads and side supports, the side pressure heads and side supports are freely moved along the length direction of the base under the drive of a motor, the side pressure heads are squeezed under the action of a hydraulic cylinder,

[0006] The detection device detects the side surface of the square steel, and the straightening support straightens the side surface of the square steel.

[0007] Preferably, a connecting column is installed on the side pressure head, and the connecting column is interconnected with the extension rod of the hydraulic cylinder. A connecting cavity is opened in the side pressure head, and a plurality of connecting holes are evenly opened on the surface of the side pressure head away from the connecting column. The connecting holes and the connecting cavity are connected with each other. A main pressure head is installed in the connecting hole, and a balancing bag is installed in the connecting cavity. The balancing bag is filled with hydraulic oil, and one end of the main pressure head located in the connecting cavity is in contact with and connected to the balancing bag.

[0008] Preferably, a hydraulic bag is installed on the end of the main pressure head away from the connecting cavity, and the hydraulic bag is filled with hydraulic oil. When the hydraulic bag is pressurized, it deforms in a direction perpendicular to the axial direction of the main pressure head, and the inner walls of the hydraulic bag in the axial direction of the main pressure head do not contact each other.

[0009] Preferably, the side of the hydraulic bag away from the main pressure head is covered with a protective layer, and a suction cup groove is opened on the surface of the protective layer, and the suction cup groove is adsorbed on the surface of the square steel during straightening.

[0010] Preferably, the side pressure head is provided with evenly distributed mounting holes, the mounting holes are located on the outside of the connecting hole and surround it, the mounting hole and the connecting cavity are not connected to each other, an auxiliary pressure head is installed in the mounting hole, a spring is installed between the bottom surface of the mounting hole and the auxiliary pressure head, an airbag is installed on the surface of the auxiliary pressure head away from one end of the connecting cavity, a cleaning hole is provided on the side of the airbag, and the outlet direction of the cleaning hole is inclined to point to the center of the side pressure head.

[0011] Preferably, the height of the auxiliary pressure head is greater than the height of the main pressure head, and the height difference between the auxiliary pressure head and the main pressure head is d.

[0012] Preferably, a layer of soft rubber edge is provided on the surface of the protective layer, the soft rubber edge is located at the edge of the suction cup groove, and the elasticity of the soft rubber edge is greater than the elasticity of the protective layer.

[0013] Preferably, micro holes are provided in the soft rubber edge, and the micro holes communicate with the spaces on both sides of the suction cup groove.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The horizontal square steel automatic straightening machine of the present invention detects and straightens the side of the square steel through the cooperation of the detection device and the straightening support. This can effectively avoid the problem in the traditional detection method that the square steel itself sags due to gravity and the straightness of the square steel cannot be accurately measured, resulting in errors in the detection and invalid straightening. It can effectively improve the straightening speed and improve work efficiency.

[0016] 2. The horizontal square steel automatic straightening machine of the present invention increases the contact area between the side pressure heads and the square steel during straightening by providing a plurality of main pressure heads and auxiliary pressure heads, thereby avoiding damage to the surface of the square steel during straightening and affecting the subsequent processing and use of the square steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a front view of the straightening machine of the present invention;

[0019] Figure 2 is a side view of the straightening machine of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the side pressure head of the straightening machine of the present invention;

[0021] Figure 4 It is a partial cross-sectional view of the side pressure head of the straightening machine of the present invention;

[0022] Figure 5 yes Figure 4 A partial enlarged view of the middle part;

[0023] Figure 6 yes Figure 4 A partial enlarged view of point B in the middle;

[0024] Figure 7 yes Figure 4 A partial enlarged view of point C in the middle;

[0025] Figure 8 yes Figure 5 A partial enlarged view of point D in the middle;

[0026] In the figure: straightening support 1, hydraulic cylinder 2, turning tool 3, detection device 4, fixed support 5, control cabinet 6, side pressure head 7, connecting column 71, main pressure head 72, mounting hole 73, auxiliary pressure head 74, spring 741, balance bag 75, connecting cavity 751, air bag 8, cleaning hole 81, hydraulic bag 82, protective layer 83, soft rubber edge 831, suction cup groove 9. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figures 1 to 8As shown, the horizontal square steel automatic straightening machine of the present invention comprises a base and a control cabinet 6, both ends of the base are installed with a turning tool 3 and a fixed support 5, the fixed support 5 is located between the two turning toolings 3 at both ends, a detection device 4 is installed on the base, the control cabinet 6 controls the operation of the straightening machine, the straightening support 1 comprises a plurality of groups of corresponding side pressure heads 7 and side supports, the side pressure heads 7 and the side supports are freely moved along the length direction of the base under the drive of the motor, and the side pressure heads 7 are squeezed under the action of the hydraulic cylinder 2,

[0029] The detection device 4 detects the side of the square steel, and the straightening support 1 straightens the side of the square steel;

[0030] When the square steel needs to be straightened, the staff places the square steel to be processed on the fixed support 5 on the base, supports and clamps the square steel through the fixed support 5, and then the staff controls the straightening machine to start running through the control cabinet 6. At the same time, during the operation of the straightening machine, the straightness of the side of the square steel is first detected by the detection device 4 installed on the base to obtain the bending curvature data of the side of the square steel. After that, the control cabinet 6 controls the side pressure head 7 and the side support to move to the bending part after calculation based on the bending curvature data, and controls the hydraulic cylinder 2 to work, thereby driving the side pressure head 7 to gradually extend to straighten the square steel. After that, the direction of the square steel is rotated by turning over the tooling 3, and re-detection and straightening are performed. At the same time, by detecting and straightening the side of the square steel, it can effectively avoid the problem that the square steel itself sags due to gravity in the traditional detection method and the square steel straightness cannot be accurately measured, resulting in errors in the detection and invalid straightening, thereby effectively improving the straightening speed and work efficiency.

[0031] As an embodiment of the present invention, a connecting column 71 is installed on the side pressure head 7, and the connecting column 71 is connected to the extension rod of the hydraulic cylinder 2. A connecting cavity 751 is provided in the side pressure head 7, and a plurality of connecting holes are evenly provided on the surface of the side pressure head 7 away from the connecting column 71, and the connecting holes are connected to the connecting cavity 751. A main pressure head 72 is installed in the connecting hole, and a balancing capsule 75 is installed in the connecting cavity 751. The balancing capsule 75 is filled with hydraulic oil, and one end of the main pressure head 72 located in the connecting cavity 751 is in contact with and connected to the balancing capsule 75.

[0032] When the square steel needs to be straightened, the side pressure head 7 gradually approaches the side of the square steel, so that the main pressure head 72 on the side pressure head 7 contacts and squeezes the side of the square steel. Since the main pressure head 72 contacts the balancing bag 75 in the connecting cavity 751, and the balancing bag 75 is filled with hydraulic oil, when the main pressure head 72 contacts the side of the square steel, the main pressure head 72 is blocked and moves toward the connecting cavity 751, thereby squeezing the balancing bag 75. Therefore, when the side pressure head 7 contacts the side of the square steel, the main pressure head 72 can fully contact the surface of the square steel through its own movement, thereby effectively improving the pressure between the side pressure head 7 and the square steel. The contact area is large enough to avoid damage to the surface of the square steel during the straightening process, which affects the subsequent processing and use of the square steel. At the same time, since the main pressure heads 72 are in contact and connected with the balance capsules 75, and according to the Bernoulli principle, the hydraulic oil in the balance capsules 75 has the same force on the side walls of the balance capsules 75. Therefore, through the action of the balance capsules 75, the main pressure heads 72 can have the same force on the square steel during the straightening process, avoiding different main pressure heads 72 having different forces on the square steel, resulting in excessive force of the main pressure heads 72, causing damage and depression on the surface of the square steel, and affecting the subsequent processing and use of the square steel.

[0033] At the same time, through the action of the hydraulic bag 82, when the square steel is straightened, there is a certain buffering effect between the main pressure head 72 and the square steel, which prevents the main pressure head 72 from directly impacting and colliding with the surface of the square steel during the straightening process, thereby damaging the surface of the square steel and affecting the subsequent processing and normal use of the square steel. At the same time, due to the buffering effect produced by the cooperation between the hydraulic bag 82 and the main pressure head 72, when the square steel is straightened, the hydraulic cylinder 2 can increase the moving speed of the side pressure head 7, so that it can contact the surface of the square steel faster, without collision, etc., causing damage to the surface of the square steel, thereby accelerating the straightening speed to a certain extent and improving the efficiency of the straightening work.

[0034] As an embodiment of the present invention, a hydraulic bag 82 is installed on one end of the main pressure head 72 away from the communication cavity 751. The hydraulic bag 82 is filled with hydraulic oil. The hydraulic bag 82 is deformed in a direction perpendicular to the axial direction of the main pressure head 72 after being pressurized. The inner walls of the hydraulic bag 82 in the axial direction of the main pressure head 72 do not contact each other.

[0035] When the square steel is straightened, the hydraulic bag 82 is arranged on the surface of the main pressure head 72, so that the surface of the main pressure head 72 and the surface of the square steel are more closely fitted. At the same time, the action of the hydraulic bag 82 effectively ensures the pressure balance at the contact point between the main pressure head 72 and the square steel, so as to avoid the force imbalance between the main pressure head 72 and the square steel when the square steel is placed offset, resulting in pressure loss on the surface of the square steel by the edge of the main pressure head 72, affecting the subsequent processing and use of the square steel. At the same time, the hydraulic bag 82 is prepared by using high-strength waterproof cloth, so that the hydraulic bag 82 can withstand the huge pressure generated during straightening, so as to avoid the hydraulic bag 82 bursting and affecting the normal use of the straightening machine. At the same time, through the setting during preparation, the hydraulic bag 82 cannot be completely flattened, so as to avoid the inner walls of the hydraulic bag 82 in the axial direction of the main pressure head 72 contacting each other during straightening, resulting in the failure of the action of the hydraulic bag 82.

[0036] As an embodiment of the present invention, the side of the hydraulic bag 82 away from the main pressure head 72 is covered with a protective layer 83, and a suction cup groove 9 is opened on the surface of the protective layer 83, and the suction cup groove 9 is adsorbed on the surface of the square steel during straightening;

[0037] Due to the different production, transportation and storage environments of square steel, various impurities may exist on the surface of the square steel. Therefore, when the square steel is straightened, the impurities on the surface of the square steel may easily cause damage to the hydraulic bag 82 under the huge pressure, resulting in cracking and leakage of the hydraulic bag 82, which may affect the use of the hydraulic bag 82. At the same time, by covering the side of the hydraulic bag 82 away from the main pressure head 72 with a protective layer 83, the hydraulic bag 82 and the surface of the square steel can be isolated from each other, so that the hydraulic bag 82 is prevented from being affected by the impurities on the surface of the square steel, thereby ensuring the normal operation of the hydraulic bag 82. At the same time, the protective layer 83 provided can increase the friction force to a certain extent, so as to prevent the square steel from being deflected or slipped due to external force during the straightening process, thereby ensuring the straightening effect. At the same time, by providing a suction cup groove 9 on the surface of the protective layer 83, the suction cup effect is generated by the suction cup groove 9 during straightening, so that the contact between the protective layer 83 and the surface of the square steel is closer, thereby further preventing the square steel or the main pressure head 72 from being deflected or slipped during straightening, thereby affecting the straightening effect.

[0038] As an embodiment of the present invention, the side pressure head 7 is provided with evenly distributed mounting holes 73, the mounting holes 73 are located outside the connecting hole and surround it, the mounting holes 73 and the connecting cavity 751 are not connected to each other, an auxiliary pressure head 74 is installed in the mounting hole 73, a spring 741 is installed between the bottom surface of the mounting hole 73 and the auxiliary pressure head 74, an air bag 8 is installed on the surface of the auxiliary pressure head 74 away from the connecting cavity 751, a cleaning hole 81 is provided on the side of the air bag 8, and the outlet direction of the cleaning hole 81 is inclined to point to the center of the side pressure head 7;

[0039] When the square steel is straightened, the auxiliary pressure head 74 starts to approach and contact the square steel synchronously, so that the airbag 8 on the surface of the auxiliary pressure head 74 is squeezed. After the airbag 8 is squeezed, the gas inside the airbag 8 is ejected from the cleaning hole 81. Since the square steel is squeezed by the side of the square steel when it is straightened, the impurities that are not firmly attached to the surface of the square steel can be directly blown away after being flushed by the gas ejected from the cleaning hole 81, and the impurities that are relatively firmly attached can be flushed loose, so that the loose impurities can fall directly under the action of gravity and will not continue to stay on the surface of the square steel. At the same time, by arranging the main pressure head 72 and the auxiliary pressure head 74 evenly distributed on the surface of the side pressure head 7, it can Impurities on the surface of the square steel are allowed to fall from the gap between the main pressure head 72 and the auxiliary pressure head 74, so that the impurities are prevented from being blocked between the side pressure head 7 and the square steel, resulting in damage to the surface of the square steel after straightening, affecting the subsequent processing and normal use of the square steel. At the same time, during use, a protective layer 83 is also installed on the side of the airbag 8 away from the auxiliary pressure head 74, and a suction cup groove 9 is opened on the protective layer 83. The airbag 8 is protected by the protective layer 83 to prevent the airbag 8 from being damaged and affecting normal use. In addition, by opening the suction cup groove 9 on the protective layer 83, the auxiliary pressure head 74 can also have a certain fixing effect on the square steel, reduce the possibility of deviation and sliding of the square steel, and improve the straightening effect and work efficiency.

[0040] As an embodiment of the present invention, the height of the auxiliary pressure head 74 is greater than the height of the main pressure head 72, and the height difference between the auxiliary pressure head 74 and the main pressure head 72 is d;

[0041] When straightening the square steel, by making the height of the auxiliary pressure head 74 greater than the height of the main pressure head 72, the auxiliary pressure head 74 first contacts the surface of the square steel, so that the air bag 8 on the auxiliary pressure head 74 is compressed first, and the gas inside it is ejected through the cleaning hole 81 to clean the impurities on the surface of the square steel to a certain extent, so as to avoid the auxiliary pressure head 74 and the main pressure head 72 from contacting the square steel synchronously, resulting in the impurities on the surface of the square steel not being blown away or not being cleaned or falling off after being blown away when the air bag 8 on the auxiliary pressure head 74 blows air through the cleaning hole 81, so that the impurities affect the fixing effect of the suction cup groove 9 and the impurities cause damage to the surface of the square steel during straightening.

[0042] As an embodiment of the present invention, a layer of soft rubber edge 831 is provided on the surface of the protective layer 83, and the soft rubber edge 831 is located at the edge of the suction cup groove 9, and the elasticity of the soft rubber edge 831 is greater than the elasticity of the protective layer 83;

[0043] When in use, by providing a soft rubber edge 831 with better elasticity on the surface of the protective layer 83, it can be more easily deformed when it contacts the surface of the square steel, thereby improving the sealing effect of the suction cup groove 9, and making the adsorption and fixing effect between the suction cup groove 9 and the square steel better, avoiding the square steel from deflecting and sliding during the straightening process, thereby improving the straightening effect. At the same time, due to the existence of the soft rubber edge 831, when the side pressure head 7 is away from the square steel, the elasticity of the soft rubber edge 831 itself can be more easily deformed, so that the edge of the protective layer 83 is away from the surface of the square steel, thereby releasing the fixing effect of the suction cup groove 9, and avoiding the side pressure head 7 from moving the square steel when leaving after the straightening is completed, affecting the subsequent straightening process.

[0044] As an embodiment of the present invention, micro holes are provided in the soft rubber edge 831, and the micro holes communicate with the spaces on both sides of the suction cup groove 9;

[0045] When the protective layer 83 contacts the surface of the square steel, the protective layer 83 is deformed synchronously as the side pressure head 7 gradually approaches the square steel, so that the suction cup groove 9 on the protective layer 83 discharges the internal air, generates negative pressure, and forms an adsorption effect, thereby fixing the square steel to a certain extent. When the protective layer 83 is gradually deformed, the air in the suction cup groove 9 will be discharged through the micropores in the soft rubber edge 831. At the same time, when the protective layer 83 is deformed to a certain extent, the micropores in the soft rubber edge 831 are gradually fitted and closed under the influence of the deformation of the soft rubber edge 831, so as to prevent the outside air from re-entering the suction cup groove 9 and affecting the adsorption and fixing effect of the suction cup groove 9. At the same time, after the straightening is completed, as the side pressure head 7 gradually moves away from the square steel, the elasticity of the soft rubber strip itself makes it easier to deform, so as to prevent the suction cup groove 9 from pulling the square steel synchronously. At the same time, after the soft rubber strip is deformed, the micropores in the soft rubber strip are reopened, which is conducive to the outside air entering the suction cup groove 9, relieving the negative pressure in the suction cup groove 9, and facilitating the side pressure head 7 to move away from the square steel to prepare for the next straightening.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A horizontal square steel automatic straightening machine, comprising a base and a control cabinet (6), wherein both ends of the base are provided with a turning tool (3) and a fixed support (5), wherein the fixed support (5) is located between the two turning tools (3) at both ends, wherein a detection device (4) is installed on the base, and the control cabinet (6) controls the operation of the straightening machine, wherein: The straightening support (1) comprises a plurality of groups of mutually corresponding side pressure heads (7) and side supports. The side pressure heads (7) and side supports are freely movable along the length direction of the base under the drive of a motor. The side pressure heads (7) are squeezed under the action of a hydraulic cylinder (2). The detection device (4) detects the side surface of the other steel, and the straightening support (1) straightens the side surface of the other steel; A connecting column (71) is installed on the side pressure head (7), and the connecting column (71) is connected to the extension rod of the hydraulic cylinder (2). A connecting cavity (751) is provided in the side pressure head (7), and a plurality of connecting holes are evenly provided on the surface of the side pressure head (7) away from the connecting column (71), and the connecting holes and the connecting cavity (751) are connected to each other. A main pressure head (72) is installed in the connecting hole, and a balancing capsule (75) is installed in the connecting cavity (751). The balancing capsule (75) is filled with hydraulic oil, and one end of the main pressure head (72) located in the connecting cavity (751) is in contact with and connected to the balancing capsule (75); The side pressure head (7) is provided with evenly distributed mounting holes (73), the mounting holes (73) are located outside the connecting hole and surround it, the mounting holes (73) and the connecting cavity (751) are not connected to each other, an auxiliary pressure head (74) is installed in the mounting hole (73), a spring (741) is installed between the bottom surface of the mounting hole (73) and the auxiliary pressure head (74), an air bag (8) is installed on the surface of the auxiliary pressure head (74) away from the connecting cavity (751), a cleaning hole (81) is provided on the side surface of the air bag (8), and the outlet direction of the cleaning hole (81) is inclined to point to the center of the side pressure head (7); The height of the auxiliary pressure head (74) is greater than the height of the main pressure head (72), and the height difference between the auxiliary pressure head (74) and the main pressure head (72) is d.

2. The horizontal square steel automatic straightening machine according to claim 1, characterized in that: A hydraulic bag (82) is installed on one end of the main pressure head (72) away from the connecting cavity (751), and the hydraulic bag (82) is filled with hydraulic oil. When the hydraulic bag (82) is pressurized, it deforms in a direction perpendicular to the axial direction of the main pressure head (72), and the inner walls of the hydraulic bag (82) in the axial direction of the main pressure head (72) do not contact each other.

3. The horizontal square steel automatic straightening machine according to claim 2 is characterized in that: The side of the hydraulic bag (82) away from the main pressure head (72) is covered with a protective layer (83), and a suction cup groove (9) is opened on the surface of the protective layer (83). The suction cup groove (9) is adsorbed on the surface of the square steel during straightening.

4. The horizontal square steel automatic straightening machine according to claim 3 is characterized in that: A layer of soft rubber edge (831) is provided on the surface of the protective layer (83), and the soft rubber edge (831) is located at the edge of the suction cup groove (9), and the elasticity of the soft rubber edge (831) is greater than the elasticity of the protective layer (83).

5. The horizontal square steel automatic straightening machine according to claim 4, characterized in that: Microholes are provided in the soft rubber edge (831), and the microholes are connected to the spaces on both sides of the suction cup groove (9).

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