Tilting gear

Abstract

The invention discloses a tilting gear which comprises a tilting frame used for placing a steel coil; the tipping hydraulic cylinder is used for driving the tipping frame to turn over by 90 degrees, so that the steel coil is turned over from a horizontal coil to a vertical coil or turned over from the vertical coil to the horizontal coil; the clamping device comprises a pair of clamping mechanisms which are fixedly installed on the two sides of the tipping frame respectively, any clamping mechanism comprises a clamping hydraulic cylinder and an arc-shaped support, each arc-shaped support comprises an arc-shaped plate, a third pin shaft and a rotating arm, the arc-shaped supports are rotatably installed on the two sides of the tipping frame through the third pin shafts, the arc-shaped plates are provided with arc inner surfaces, and the rotating arms are arranged on the arc-shaped plates. And the arc-shaped support is hinged to the third pin shaft, cylinder barrels of the clamping hydraulic cylinders are rotationally installed on the two sides of the tipping frame, one end of the rotating arm is hinged to the third pin shaft, and the other end of the rotating arm is hinged to the telescopic end of each clamping hydraulic cylinder. According to the overturning device, the steel coil is clamped in the overturning process through the clamping device, and the horizontal coil can be stably overturned into the vertical coil when the steel coil overflows.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical equipment, and in particular relates to a steel turning machine. Background Art

[0002] During the transportation of hot rolled steel coils, it is sometimes necessary to flip the coils from a "lying coil" state to a "standing coil" state, or vice versa; the equipment that completes this task is a steel turning machine. During the production of steel coils, depending on the type of steel, plate quality, and coiling accuracy, there is a certain amount of overflow, which is specifically manifested as the inner or outer ring of the steel coil protruding from the end face of the steel coil, and in severe cases, up to ±150mm.

[0003] For coils with large overflow, when they need to be flipped from "horizontal coil" to "vertical coil", the contact between the coil and the rotating arm changes from the ideal "coil end face contact" to "local narrow ring contact" or single-sided contact. Coils with large overflow are prone to rollover during the process of being flipped to "vertical coil", which is not conducive to production stability.

[0004] Rolling over can cause damage to mechanical and hydraulic equipment, and cause large-scale damage to surrounding equipment, instruments, cables, etc., and even damage civil engineering foundations, posing a great threat to the safety of surrounding equipment and personnel. Summary of the invention

[0005] The invention discloses a novel steel turning machine with a turning-over stabilizing device, which can stably turn a horizontal coil into a vertical coil when overflow occurs on the steel coil.

[0006] A steel turning machine, comprising:

[0007] A tipping rack for placing steel coils;

[0008] A tilting hydraulic cylinder is used to drive the tilting frame to tilt 90 degrees, so that the steel coil is turned from a horizontal coil to a vertical coil, or from a vertical coil to a horizontal coil;

[0009] The clamping device includes a pair of clamping mechanisms, which are fixedly installed on both sides of the tilting frame respectively. Any clamping mechanism includes a clamping hydraulic cylinder and an arc bracket. The arc bracket includes an arc plate, a third pin shaft and a swivel arm. The arc bracket is rotatably installed on both sides of the tilting frame through the third pin shaft. The arc plate has an arc inner surface for clamping with the outer periphery of the steel coil. The arc bracket is hinged to the third pin shaft. The cylinder barrel of the clamping hydraulic cylinder is rotatably installed on both sides of the tilting frame. One end of the swivel arm is hinged to the third pin shaft, and the other end is hinged to the telescopic end of the clamping hydraulic cylinder.

[0010] Optionally, a sensing plate and a tension spring are further provided on the arc-shaped bracket, and the tension spring is fixedly installed on the arc-shaped bracket, one end of the sensing plate has the same curvature as the arc-shaped plate, and the other end thereof is connected to the lower end of the tension spring, and the sensing plate is rotatably mounted on the arc-shaped plate through a fifth pin shaft, so that when the tension spring is in a free state, the sensing plate rotates to exceed the arc surface of the arc plate, and when the tension spring is in a maximum stretched state, the sensing plate rotates to coincide with the arc surface of the arc plate.

[0011] Optionally, a clamping sensing element and a release sensing element are also provided on the arc-shaped bracket. The clamping sensing element is used to send a signal when the sensing plate rotates to coincide with the arc surface of the arc plate, and the release sensing element is used to send a signal when the sensing plate rotates to exceed the arc surface of the arc plate, so that the tension spring is in a free state.

[0012] Optionally, the tilting hydraulic cylinder includes a cylinder body, a cylinder body hard pipeline, a cylinder body hose line, an oil circuit block, a rod chamber hydraulic lock and a rodless chamber hydraulic lock. The cylinder body pipe soft line is connected to the oil circuit block, the cylinder body hard pipeline is connected to the cylinder body hose line, the cylinder body hard pipeline is connected to the rod chamber of the hydraulic cylinder through the rod chamber hydraulic lock, and the cylinder body hard pipeline is connected to the rodless chamber of the hydraulic cylinder through the rodless chamber hydraulic lock.

[0013] Optionally, the end of the telescopic rod of the tilting hydraulic cylinder is hinged to the tilting frame, the tilting frame includes a pair of symmetrically arranged tilting sub-frames, the pair of tilting sub-frames are fixedly connected, each tilting sub-frame includes a right-angle frame, the right-angle frame includes a first support arm and a second support arm connected at a right angle, the space between the pair of first support arms is used to place a horizontal roll, the other end of the tilting frame opposite to the right-angle frame is fixedly connected to a rotating shaft, and the rotating shaft is rotatably mounted on the base.

[0014] Optionally, the tipping subframe is a box-type structure welded part.

[0015] Optionally, V-shaped blocks are fixedly installed on the upper ends of the edges of a pair of first support arms that are close to each other, and the V-shaped blocks are used to support the horizontal roll.

[0016] Optionally, a first bearing seat is fixedly mounted on the base, and both ends of the rotating shaft are rotatably mounted on the base through the first bearing seat. On one side of a first bearing seat, a coupling and an angle meter are coaxially connected in sequence, and the angle meter is used to measure the angle during the flipping process of the tilting frame.

[0017] Optionally, a plurality of rib plates are arranged at intervals on the arc outer surface of the arc-shaped plate.

[0018] Optionally, a screw is threadedly mounted on the arc-shaped bracket, and an end of the screw is fixedly connected to a tension spring.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] The present application clamps the steel coil by means of a clamping device during the tipping process, and when overflow occurs on the steel coil, the horizontal coil can be stably flipped into a vertical coil.

[0021] The present application senses the two extreme positions of the sensing plate through the sensing element, and can send out a signal after the sensing plate reaches the corresponding extreme position, so that other mechanisms can avoid interfering with the clamping device when they are in action. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a coil receiving position of a steel turning machine according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the coil feeding position of the steel turning machine according to an embodiment of the present invention;

[0024] Figure 3 It is a three-dimensional schematic diagram of the tipping frame according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the installation of the rotating shaft according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the installation of the tilting hydraulic cylinder according to an embodiment of the present invention;

[0027] Figure 6 A front view of a clamping device according to an embodiment of the present invention;

[0028] Figure 7 A side view of a clamping device according to an embodiment of the present invention;

[0029] Figure 8 for Figure 6 AA section view;

[0030] Fig. 9 Figure 8 BB section view;

[0031] Fig.10 for Figure 7 CC section view;

[0032] Fig.11 for Figure 7 DD section view;

[0033] Fig.12 It is a three-dimensional schematic diagram of the arc-shaped bracket according to an embodiment of the present invention;

[0034] Fig.13 (a) is a schematic diagram of the induction plate contacting the outer circle of the steel coil when the steel coil is the largest according to an embodiment of the present invention;

[0035] Fig.13 (b) is a schematic diagram of the arc-shaped plate clamping the outer circle of the steel coil when the steel coil is the largest according to an embodiment of the present invention;

[0036] Fig.14 (a) is a schematic diagram of the induction plate contacting the outer circle of the steel coil when the steel coil is the smallest according to an embodiment of the present invention;

[0037] Fig.14 (b) is a schematic diagram of the arc-shaped plate clamping the outer circle of the steel coil when the steel coil is the smallest according to an embodiment of the present invention;

[0038] Fig.15 It is a schematic diagram of the state of the clamping device when the steel coil according to the embodiment of the present invention is released. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the relative position relationship after connection remains unchanged. "Hinged" means that the two are connected to each other and can rotate relative to each other after connection. The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0041] The steel turning machine of this embodiment is as follows Figure 1 As shown, it includes a base 1, which is fixed on a foundation or a steel structure platform by fasteners; a tilting frame 2, which is installed on the base 1 through a rotating shaft 3 and can rotate with the rotating shaft 3, and an area for placing the steel coil to be turned over is provided on the tilting frame 2; a tilting hydraulic cylinder 4, which is installed on the base and is used to drive the tilting frame to turn over 90°, so that the steel coil is turned from a horizontal roll to a vertical roll, or from a vertical roll to a horizontal roll; a clamping device 5, which is used to clamp the steel coil during the turning process of the tilting frame, so that the steel coil can be stably turned over with the tilting frame.

[0042] The base 1 is a steel structure, which is fixed on a foundation or a steel structure platform by anchor bolts, and a bearing seat is fixedly mounted thereon for mounting a rotating shaft 3 and a tilting hydraulic cylinder 4 .

[0043] Please refer to Figure 3 The tilting frame 2 includes a pair of symmetrically arranged tilting sub-frames, which are symmetrically arranged at a certain interval, and are fixedly connected as a whole. Each tilting sub-frame includes a right-angle frame, which includes a first support arm 206 and a second support arm 203 connected at a right angle. The horizontal roll is placed between the pair of first support arms 206, and the horizontal roll is supported between the upper ends of the pair of first support arms with its axis horizontal, and the end face of the horizontal roll is in contact with the second support arm 203. V-shaped blocks 201 can be fixedly installed on the upper ends of the edges of the pair of first support arms 206 that are close to each other. The two V-shaped blocks 201 have surfaces that are inclined downward toward each other. The horizontal roll is supported between the two V-shaped blocks 201, and its inclined surface is in direct contact with the outer circle of the horizontal roll, which can provide more stable support for the horizontal roll.

[0044] A rotating shaft 3 is fixedly connected to the other end of the tilting frame 2 opposite to the right-angle frame. The rotating shaft 3 passes through a pair of tilting sub-frames and is fixedly connected thereto. The entire tilting frame 2 can rotate together with the rotating shaft 3. Specifically, the tilting frame 2 can rotate together with the rotating shaft 3 until the first support arm 206 is in a horizontal state and the second support arm 203 is in a vertical state, and a horizontal roll can be placed on the first support arm at this time. The tilting frame 2 can also rotate together with the rotating shaft 3 until the first support arm 206 is in a vertical state and the second support arm 203 is in a horizontal state, so as to flip the horizontal roll placed between the first support arms into a vertical roll. Figure 1 , Figure 2 They are the coil receiving state and coil feeding state of the steel turning machine. The turning process is to turn Figure 1 The horizontal coil turning shown is Figure 2 The process of vertical steel coil is shown.

[0045] In order to improve the structural strength of the tilting subframe, its structure can adopt a box-type structure, such as Figure 3 The 204 in the figure is a box-type structure.

[0046] A first bearing seat is fixedly mounted on the base 1. Figure 4 As shown, both ends of the rotating shaft 3 are rotatably mounted on the base 1 via a first bearing seat, and the rotating shaft 3 is fixedly connected to the tilting frame 2, for example, the body of the rotating shaft 3 is welded and fixed to the box structure 204 in the tilting frame 2, so that it can rotate together with the tilting frame 2.

[0047] Specifically, the first bearing seat includes a bearing cover 301, a bearing 302, a transparent cover 303, and a spacer ring 305. Further, on one side of a first bearing seat, a connecting shaft 306, a coupling 307, and an angle meter 308 are coaxially connected in sequence. The angle meter is used to measure the angle during the flipping process to facilitate equipment control. To protect the angle meter, an angle meter shield 309 can be provided on the outside.

[0048] like Figure 5 As shown, one end of the tilting hydraulic cylinder 4 is mounted on the base 1 through the second bearing seat, and the other end is connected to the tilting frame 2 through the head pin 408 to provide power for tilting. Specifically, the cylinder body of the tilting hydraulic cylinder 4 is rotatably mounted on the base 1 through the second bearing seat, for example, a second pin 406 extends radially from the cylinder body, and the second pin 406 is mounted on the corresponding second bearing seat through a bearing, so that the tilting hydraulic cylinder 4 can rotate.

[0049] The end of the telescopic end of the tilting hydraulic cylinder 4 is fixedly connected with an earring, and the head pin 408 passes through the tilting frame and the earring, so that the tilting hydraulic cylinder 4 and the tilting frame can be hinged. Figure 1 When the telescopic end is retracted, the first support arm 206 of the tipping frame 2 is in a horizontal state, and the second support arm 203 is in a vertical state. At this time, a horizontal roll can be placed between the first support arms 206. Figure 2 In the embodiment, the telescopic end is extended, and the tilting frame 2 rotates along with the rotating shaft 3 until the first support arm 206 is in a vertical state and the second support arm 203 is in a horizontal state, thereby turning the horizontal roll placed between the first support arms into a vertical roll.

[0050] In some embodiments, Figure 5 As shown, the tilting hydraulic cylinder 4 comprises a rodless chamber hydraulic lock 401, a cylinder hard pipeline 402, a cylinder 403, a cylinder hose line 404, an oil circuit block 405, a rod chamber hydraulic lock 407, and a head pin 408. The tilting hydraulic cylinder 4 can be hinged to the tilting frame 2 at the end of the telescopic rod through the head pin 408. The cylinder tube soft line is connected to the oil circuit block 405, the cylinder hard pipeline is connected to the cylinder hose line, and the cylinder hard pipeline is respectively connected to the rod chamber and the rodless chamber of the hydraulic cylinder to transport the hydraulic oil into the hydraulic cylinder. The specific hydraulic cylinder oil circuit control is not described in detail here. During the steel turning process, if the machine needs to be shut down due to special circumstances, the tilting frame 2 can be stopped at the current position by controlling the rod chamber hydraulic lock 407 and the rodless chamber hydraulic lock 401, and the pressure on both sides of the hydraulic cylinder is maintained to ensure the safety of the equipment.

[0051] The clamping device 5 comprises a pair of clamping mechanisms, such as Figure 6 As shown, they are respectively installed on both sides of the tilting frame 2, and any clamping mechanism includes a clamping hydraulic cylinder 501 and an arc-shaped bracket 503. Figure 7It shows the two positions of the clamping device for the maximum coil diameter φD (max) and the minimum coil diameter φD (min).

[0052] like Fig.12 As shown, the arc bracket 503 includes an arc plate 50301, a rib plate 50302, a third pin shaft 50303, and a rotating arm 50304. The arc plate 50301 has an arc inner surface for clamping the outer circumference of the steel coil, and a plurality of rib plates 50302 are arranged at intervals on the arc outer surface of the arc plate to strengthen the strength of the arc plate 50301.

[0053] Both sides of the tilting frame 2 have a pair of mounting frames 202, each mounting frame 202 is mounted with a third bearing seat 502, and the third pin shaft 50303 is hinged with the arc-shaped bracket, and the end of the third pin shaft 50303 passing through the arc-shaped bracket is mounted on a pair of third bearing seats 502, so that the third pin shaft 50303 can rotate. Fig.11 As shown, a fourth bearing seat 516 is fixedly connected to both sides of the tilting frame 2, and the cylinder barrel of the clamping hydraulic cylinder is rotatably mounted on the fourth bearing seat 516 through a shaft sleeve 517. A rotating arm 50304 is also hinged on the third pin shaft 50303, one end of the rotating arm 50304 is hinged to the third pin shaft 50303, and the other end is hinged to the telescopic end of the clamping hydraulic cylinder 501 through a fourth pin shaft 515. The rotating arm 50304 can be rotated by pushing and pulling the clamping hydraulic cylinder 501, thereby rotating the third pin shaft 50303 fixedly connected thereto, thereby rotating the arc bracket 503 fixedly connected to the third pin shaft 50303, and rotating together, thereby clamping or releasing the steel coil.

[0054] Among them, Figures 8 to 11 As shown, the arc plate is also provided with a sensing plate 504, a clamping sensing element 505, a screw 506, a tension spring 508, a fifth pin 509, and a release sensing element 510. Specifically, a bracket 507 can be installed on two of the rib plates 50302 through an angle iron 50306, and a screw 506 is installed on the bracket 507. The screw passes downward through the end of the bracket 507 and is fixedly connected to the upper end of the tension spring 508. The screw 506 can be rotated to adjust the position of the tension spring 508. The fifth pin 509 passes through the sensing plate 504 and is installed on the arc plate, so that the sensing plate 504 can rotate around the fifth pin 509. Specifically, a fifth bearing seat, a sleeve 511, a connecting bolt 512, and a bracket 513 can be fixedly connected to the arc plate through the support plate 50307. The fifth bearing seat is mounted on the upper end of the bracket 513 on the arc plate through the connecting bolts 512 , and the fifth pin 509 is mounted on the fifth bearing seat through the shaft sleeve 511 .

[0055] One end of the induction plate 504 has the same curvature as the arc plate, and the other end is connected to the lower end of the tension spring. When the induction plate is in a free state, the one end thereof protrudes from the inner surface of the arc plate, which is one of its extreme positions. When the induction plate contacts the outer periphery of the steel coil, it is pushed by the outer periphery of the steel coil to be flush with the curvature of the arc plate, and the tension spring is stretched at this time, which is another extreme position. The surface of the arc plate in contact with the steel coil and the surface of the induction plate in contact with the steel plate are both counted as arcs, ensuring that when the largest and smallest steel coils are in a clamped state, the arc surface of the induction plate can overlap with the inner arc surface of the arc bracket.

[0056] Fig.13 (a) is a schematic diagram of the induction plate contacting the outer circle of the steel coil when the steel coil is the largest according to an embodiment of the present invention; Fig.13 (b) is a schematic diagram of the arc-shaped plate clamping the outer circle of the steel coil when the steel coil is the largest according to an embodiment of the present invention; Fig.14 (a) is a schematic diagram of the induction plate contacting the outer circle of the steel coil when the steel coil is the smallest according to an embodiment of the present invention; Fig.14 (b) is a schematic diagram of the arc plate clamping the outer circle of the steel coil when the steel coil is the smallest in the embodiment of the present invention. A clamping sensing element 505 and a release sensing element 510 are respectively provided on the sensing plate corresponding to the two extreme positions of the sensing plate, wherein the clamping sensing element 505 is located next to the position where the sensing plate 504 overlaps with the inner arc of the arc plate, so that it can be detected that the sensing plate is located at this position, which indicates that the clamping device is in a clamping state. The release sensing element 510 is located next to the position where the sensing plate 504 protrudes from the inner arc surface of the arc plate when the tension spring is in a free state, which is the maximum position of the sensing plate protruding outward, which indicates that the clamping device is in a released state.

[0057] The clamping and releasing states are sensed by the clamping sensing element 505 and the releasing sensing element 510, and corresponding signals are sent out. After the corresponding signals are obtained, interference can be avoided when other structures act according to the current state of the clamping mechanism, thereby ensuring safe operation of the equipment.

[0058] After the horizontal coil is placed on the first support arm 206, the end face of the horizontal coil is fitted into the second support arm 203, and the clamping hydraulic cylinder drives the arc bracket until the inner surface of the arc plate contacts and squeezes the outer circle of the steel coil; during the rolling process, the clamping hydraulic cylinder always applies pressure to the steel coil, and the clamping force formed can improve the safety during the flipping process.

[0059] The action flow of this steel turning machine is: the horizontal coil is placed on the first support arm, the end face of the horizontal coil is close to the second support arm → the clamping device presses the steel coil → it is turned over to be a vertical coil → the clamping device releases the steel coil → the subsequent equipment takes away the steel coil → the steel turning machine returns to its position and waits for the next steel coil.

[0060] Fig.15After the flipping action is completed, the steel coil is in the upright state, ready to be handed over to the next transport structure for coiling; at this time, the stroke of the hydraulic cylinder is 0, and the release sensing element 510 sends a signal to remind other components to maintain the necessary safety distance A from the outer circle of the largest steel coil.

[0061] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations shall fall within the protection scope of the claims of the present invention.

Claims

1. A steel turning machine, characterized in that: include: A tipping rack for placing steel coils; A tilting hydraulic cylinder is used to drive the tilting frame to tilt 90 degrees, so that the steel coil is turned from a horizontal coil to a vertical coil, or from a vertical coil to a horizontal coil; The clamping device includes a pair of clamping mechanisms, which are fixedly installed on both sides of the tilting frame respectively. Any clamping mechanism includes a clamping hydraulic cylinder and an arc bracket. The arc bracket includes an arc plate, a third pin shaft and a rotating arm. The arc bracket is rotatably installed on both sides of the tilting frame through the third pin shaft. The arc plate has an arc inner surface for clamping with the outer periphery of the steel coil. The arc bracket is hinged to the third pin shaft. The cylinder barrel of the clamping hydraulic cylinder is rotatably installed on both sides of the tilting frame. One end of the rotating arm is hinged to the third pin shaft, and the other end is hinged to the telescopic end of the clamping hydraulic cylinder. The arc-shaped bracket is also provided with a sensing plate and a tension spring. The tension spring is fixedly mounted on the arc-shaped bracket. One end of the sensing plate has the same curvature as that of the arc-shaped plate, and the other end thereof is connected to the lower end of the tension spring. The sensing plate is rotatably mounted on the arc-shaped plate through a fifth pin shaft, so that when the tension spring is in a free state, the sensing plate rotates to exceed the arc surface of the arc-shaped plate, and when the tension spring is in a maximum stretched state, the sensing plate rotates to coincide with the arc surface of the arc-shaped plate. The arc-shaped bracket is also provided with a clamping sensing element and a release sensing element. The clamping sensing element is used to send a signal when the sensing plate rotates to coincide with the arc surface of the arc plate, and the release sensing element is used to send a signal when the sensing plate rotates beyond the arc surface of the arc plate, so that the tension spring is in a free state.

2. The steel turning machine according to claim 1, characterized in that: The tilting hydraulic cylinder includes a cylinder body, a cylinder body hard pipeline, a cylinder body hose line, an oil circuit block, a rod chamber hydraulic lock and a rodless chamber hydraulic lock. The cylinder body pipe soft line is connected to the oil circuit block, the cylinder body hard pipeline is connected to the cylinder body hose line, the cylinder body hard pipeline is connected to the rod chamber of the hydraulic cylinder through the rod chamber hydraulic lock, and the cylinder body hard pipeline is connected to the rodless chamber of the hydraulic cylinder through the rodless chamber hydraulic lock.

3. The steel turning machine according to claim 1, characterized in that: The end of the telescopic rod of the tilting hydraulic cylinder is hinged to the tilting frame, and the tilting frame includes a pair of symmetrically arranged tilting sub-frames, which are fixedly connected. Each tilting sub-frame includes a right-angle frame, and the right-angle frame includes a first support arm and a second support arm connected at a right angle. The space between the pair of first support arms is used to place a horizontal roll. The other end of the tilting frame opposite to the right-angle frame is fixedly connected to a rotating shaft, and the rotating shaft is rotatably mounted on the base.

4. The steel turning machine according to claim 3, characterized in that: The tilting subframe is a box-shaped structure welded part.

5. The steel turning machine according to claim 3, characterized in that: V-shaped blocks are fixedly installed on the upper ends of the edges of a pair of first supporting arms that are close to each other, and the V-shaped blocks are used to support the horizontal roll.

6. The steel turning machine according to claim 3, characterized in that: A first bearing seat is fixedly mounted on the base, and both ends of the rotating shaft are rotatably mounted on the base through the first bearing seat. On one side of a first bearing seat, a coupling and an angle meter are coaxially connected in sequence, and the angle meter is used to measure the angle during the flipping process of the tilting frame.

7. The steel turning machine according to claim 1, characterized in that: A plurality of rib plates are arranged at intervals on the arc outer surface of the arc-shaped plate.

8. The steel turning machine according to claim 1, characterized in that: A screw rod is threadably mounted on the arc-shaped bracket, and an end of the screw rod is fixedly connected to a tension spring.

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